Walk in care services near me in Philadelphia, PA
368 results found
Search for local businesses, places and services near you
- United States
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
- Ukraine
- Italy
- Poland
- France
- Germany
-
Good Buy Auto Sales
● ClosedWelcome to Good Buy Auto Sales, your trusted local car dealer located at 8303 Torresdale Avenue, Philadelphia, Pennsylvania. At Good Buy Auto Sales, we pride ourselves on providing a seamless and enjoyable car-buying experience for our valued customers. Whether you're in the market for a reliable pre-owned vehicle or looking to trade in your current car, our friendly and knowledgeable staff are here to assist you every step of the way. Explore our extensive inventory of quality vehicles from various makes and models, each carefully inspected to ensure you drive away with confidence. We understand that purchasing a car is a significant decision, which is why we offer flexible financing options to suit your needs and budget.
8303 Torresdale Avenue, Philadelphia, Pennsylvania 19136, United States -
Rejuvenation Medical Aesthetics
● ClosedWelcome to Rejuvenation Medical Aesthetics, your premier destination for advanced non-surgical aesthetic treatments in Newtown, Pennsylvania. Located at 451 South State Street, our health and spa center is dedicated to helping you look and feel your very best. Our team of Master Injectors and Aestheticians brings decades of experience to address a variety of skin and body concerns, from fine lines and wrinkles to stubborn fat pockets. When you step into our warm and inviting environment, you'll experience exceptional customer service from start to finish. Our friendly staff is committed to making you feel comfortable and welcome, ensuring that your visit is both relaxing and rewarding. Whether you're a local resident of Bucks County or visiting from Philadelphia, New Jersey, or the surrounding areas, we are here to provide you with personalized care and outstanding results.
451 South State Street, Newtown, Pennsylvania 18940, United States -
Maze Lot
● OpenWelcome to Maze Lot, your convenient parking solution located on Main Park Road at George School, Pennsylvania 18940. Nestled just 33 miles from Center City Philadelphia, Maze Lot provides easy access to the scenic Tyler State Park and its rich array of attractions and activities. Important Notice: The spotted lanternfly has invaded our area. This invasive insect poses a significant threat to Pennsylvania’s resources, businesses, and economy. We kindly urge all visitors to LOOK BEFORE YOU LEAVE! Please inspect your vehicle, camper, tent, gear, and other belongings before departing the park, and destroy any lanternflies you find. For more information, visit the Penn State Extension’s Spotted Lanternfly website.
Main Park Road, George School, Pennsylvania 18940, United States -
Issan Thai Massage
● ClosedWelcome to Issan Thai Massage, your oasis of relaxation and rejuvenation nestled in the heart of Elkins Park, Pennsylvania. Conveniently located at 700 Sural Lane, we specialize in authentic Thai Yoga massage, offering the best therapeutic experience in the state. Our services are designed to cater to your unique needs, whether you're seeking relief from daily stress, muscle tension, or simply looking to indulge in some self-care. Our skilled team, including our Master Masseuses Sanee and Kanye, are dedicated to providing you with an exceptional massage experience. We offer a range of services, from a 60-minute Medicinal Thai Yoga Massage to a 30-minute Medicinal Foot Massage. If you require the expertise of a male masseuse, we are pleased to accommodate clergy or anyone who prefers a man's touch.
700 Sural Lane, Elkins Park, Pennsylvania 19027, United States -
Inail & Spa
● ClosedWelcome to Inail & Spa, your premier beauty salon destination located at 1408 Clearview Street, Philadelphia, Pennsylvania. Nestled in the heart of the city, we offer a serene escape where you can indulge in a range of luxurious beauty treatments designed to rejuvenate your mind, body, and spirit. Our expert team of skilled professionals is dedicated to providing exceptional service and personalized care tailored to meet your individual needs. At Inail & Spa, we specialize in a variety of services including manicures, pedicures, facials, massages, and more. Our state-of-the-art facilities and calming atmosphere ensure a relaxing experience from the moment you walk through our doors. Whether you're looking to refresh your look or unwind after a busy day, our comprehensive menu of treatments promises to leave you feeling pampered and revitalized.
1408 Clearview Street, Philadelphia, Pennsylvania 19141, United States -
Gina_hair_extension Dominican Salon
● OpenWelcome to Gina Hair Extension Dominican Salon, your premier destination for exceptional hair care and styling services in Philadelphia. Conveniently located at 3738 North 5th Street, our salon is dedicated to providing you with the finest hair extension techniques and Dominican hair care traditions. At Gina Hair Extension Dominican Salon, we pride ourselves on our expertise in hair extensions, offering a wide range of options to suit your unique style and preferences. Our skilled stylists are committed to enhancing your natural beauty, ensuring you leave our salon feeling confident and glamorous.
3738 North 5th Street, Philadelphia, Pennsylvania 19140, United States -
Ava Karl Salon
● ClosedWelcome to Ava Karl Salon, your premier destination for exceptional hair care services in the heart of Philadelphia. Nestled at 130 Chestnut Street, our salon offers a serene and stylish environment where you can relax and transform your look with the help of our skilled professionals. At Ava Karl Salon, we are passionate about hair and dedicated to providing personalized services that cater to your unique style and needs. Our talented team of stylists specializes in a wide range of hair care services, including cutting-edge haircuts, vibrant color treatments, and luxurious styling options. Whether you're looking for a bold new look, a classic trim, or a complete makeover, we use the latest techniques and high-quality products to ensure your hair is healthy, vibrant, and stunning.
130 Chestnut Street, Philadelphia, Pennsylvania 19106, United States -
Hair Cuttery
● ClosedWelcome to Hair Cuttery, your premier destination for exceptional hair care services in Philadelphia, PA. Located at 2457 Aramingo Avenue, we are committed to providing you with a personalized salon experience that enhances your unique style and boosts your confidence. Our talented hairstylists offer a wide range of services, from our Signature Cut with a relaxing shampoo and conditioner to specialized treatments for highly textured hair. Whether you're looking for a simple trim, a bold color transformation, or a luxurious blowout, we use only the finest products to ensure your hair remains healthy and vibrant. Enjoy exclusive offers like $3-$5 off on hair care products with select services. Discover the artistry of highlights, lowlights, balayage, and more with our expert color services, designed to refresh and rejuvenate your look.
2457 Aramingo Avenue, Philadelphia, Pennsylvania 19125, United States -
Iconic Hair Studio LLC
● ClosedWelcome to Iconic Hair Studio LLC, your premier destination for exceptional hair care services in the heart of Philadelphia. Conveniently located at 4312 Frankford Avenue, our salon is dedicated to providing you with a personalized and transformative hair experience. Our team of skilled and passionate stylists is committed to helping you achieve the look you desire, whether it's a trendy new haircut, vibrant color, or a rejuvenating treatment. At Iconic Hair Studio LLC, we pride ourselves on using the latest techniques and high-quality products to ensure your hair not only looks fantastic but feels healthy and nourished. Our welcoming and modern salon atmosphere is designed to make you feel relaxed and pampered from the moment you walk through our doors.
4312 Frankford Avenue, Philadelphia, Pennsylvania 19124, United States -
LA SHORTY BEAUTY SALON
● OpenWelcome to LA Shorty Beauty Salon, your premier destination for beauty and relaxation in the heart of Philadelphia. Conveniently located at 5260 Akron Street, our salon offers a warm and inviting atmosphere where you can escape the hustle and bustle of everyday life. At LA Shorty Beauty Salon, we are dedicated to providing exceptional beauty services tailored to meet your unique needs. Our team of skilled professionals is passionate about helping you look and feel your best. Whether you're seeking a fresh haircut, a vibrant new color, or a rejuvenating facial, we have you covered. We use only the highest quality products to ensure stunning results and a luxurious experience.
5260 Akron Street, Philadelphia, Pennsylvania 19124, United States -
Bright Luxe Beauty by Dayana
● ClosedWelcome to Bright Luxe Beauty by Dayana, your premier destination for exceptional beauty services in the heart of Philadelphia. Conveniently located at 7108 Castor Avenue, our salon offers a tranquil and luxurious escape from the everyday hustle and bustle. We specialize in a wide range of beauty treatments designed to enhance your natural beauty and leave you feeling rejuvenated and confident. At Bright Luxe Beauty by Dayana, we pride ourselves on delivering personalized services tailored to meet the unique needs of each client. Our skilled and passionate team of beauty professionals is dedicated to providing the highest quality of care, ensuring that every visit is a delightful experience. Whether you're looking for a stunning new hairstyle, a relaxing facial, or a flawless manicure, we use only the finest products and techniques to achieve outstanding results.
7108 Castor Avenue, Philadelphia, Pennsylvania 19149, United States -
IGIT Over Ya Head
● ClosedWelcome to IGIT Over Ya Head, your premier destination for exceptional hair care services in Philadelphia! Conveniently located at 6201 Bustleton Avenue, our salon is dedicated to providing top-notch hair care solutions tailored to meet your unique style and needs. At IGIT Over Ya Head, we believe that your hair is a reflection of your personality and should be treated with the utmost care and expertise. Our team of skilled and passionate stylists is committed to delivering outstanding service, whether you're looking for a fresh cut, vibrant color, or a complete style transformation. We use only the highest quality products to ensure your hair looks and feels its best.
6201 Bustleton Avenue, Philadelphia, Pennsylvania 19149, United States -
Beautifully Touched Aesthetics
● ClosedWelcome to Beautifully Touched Aesthetics, your premier destination for beauty and relaxation located in the heart of Philadelphia, Pennsylvania. Nestled in the vibrant 19135 area, our beauty salon and spa is dedicated to providing you with an unparalleled experience of rejuvenation and self-care. At Beautifully Touched Aesthetics, we believe that beauty is both an art and a science. Our team of skilled professionals is committed to enhancing your natural beauty through a wide range of personalized services. Whether you're looking for a refreshing facial, a soothing massage, or expert skincare treatments, our state-of-the-art facility offers a tranquil escape from the hustle and bustle of everyday life.
Philadelphia, Pennsylvania 19135, United States -
Pa truck wash llc
● ClosedWelcome to PA Truck Wash LLC, your trusted partner for premium vehicle and property cleaning services in Philadelphia, Pennsylvania, and extending into North and Central New Jersey. Located at 4351 North 5th Street, Philadelphia, our business specializes in delivering top-tier car wash solutions with a focus on commercial mobile fleet truck washing and heavy equipment maintenance. At PA Truck Wash LLC, we understand the importance of maintaining a pristine image for your fleet and property. Our team of skilled professionals is equipped with state-of-the-art technology to provide a comprehensive range of services including steam cleaning, wheel polishing, and power washing for sidewalks and driveways. Whether you're looking to enhance the appearance of your heavy equipment or ensure your fleet trucks are road-ready, we have the expertise and tools to meet your needs.
4351 North 5th Street, Philadelphia, Pennsylvania 19140, United States -
Oasis City Church
● OpenWelcome to Oasis City Church, a vibrant and welcoming place of worship located at 5248 North 5th Street, Philadelphia, Pennsylvania. As a proud member of the Assemblies of God (AOG) denomination, we are deeply rooted in our mission to serve the community of North Philly and beyond. Founded in 1998 by Pastor Alex, our church has grown from a small group of ten dedicated individuals to a thriving congregation committed to celebrating God, inspiring love, and fostering spiritual and emotional health. At Oasis City Church, we believe in equipping individuals through the redemptive work of Jesus Christ, helping them fulfill their personal and ministry callings while magnifying God’s name. We are passionate about making a positive impact in our community by feeding the hungry, clothing the needy, and making disciples, as Jesus directed us. Our commitment to sharing the saving grace of Jesus is unwavering, and we welcome all who are willing to listen.
5248 North 5th Street, Philadelphia, Pennsylvania 19120, United States -
St. Peter's Parish Office
● ClosedWelcome to St. Peter’s Episcopal Church, located at 313 Pine Street, Philadelphia, Pennsylvania 19106. As a theologically progressive Christian church, St. Peter’s offers a welcoming environment for those looking to explore or deepen their faith. Our community is a joyful place for worship and a vibrant hub for connecting with others. We believe in the inherent goodness of God’s creation and the equal worth and dignity of all people. At St. Peter’s, we are committed to raising our voices for justice, serving our neighbors and city, and caring for our planet. We invite you to join us in our journey of prayer, learning, and service. Through worship, prayer, fellowship groups, and various events, we support one another and foster a sense of belonging. There is a place for you here, and we encourage you to fill out our online welcome form so we can get to know you better.
313 Pine Street, Philadelphia, Pennsylvania 19106, United States -
First Presbyterian Church
● OpenWelcome to First Presbyterian Church, a vibrant and welcoming community located in the heart of Philadelphia at 5435 North 3rd Street. As a cherished place of worship, we are dedicated to fostering spiritual growth, community connection, and compassionate service. Our church offers a warm and inclusive environment where individuals and families from all walks of life can come together to explore their faith, engage in meaningful worship, and participate in various enriching activities. Whether you are seeking a spiritual home, looking to deepen your faith journey, or simply wish to be part of a caring community, we invite you to join us for our weekly services, community events, and outreach programs. At First Presbyterian Church, we are committed to making a positive impact in the lives of our members and the surrounding community. Come and experience the warmth, fellowship, and spiritual enrichment that our church family has to offer.
5435 North 3rd Street, Philadelphia, Pennsylvania 19120, United States -
Lawndale Baptist Church
● OpenWelcome to Lawndale Baptist Church, a warm and welcoming place of worship located at 6433 Lawndale Street, Philadelphia, Pennsylvania. We are a vibrant community dedicated to spiritual growth, fellowship, and service. At Lawndale Baptist Church, we strive to create an inclusive environment where people from all walks of life can come together to explore their faith and deepen their relationship with God. Join us for our inspiring Sunday services, engaging Bible studies, and various community outreach programs designed to support and uplift our neighbors. Whether you're new to the area, looking for a spiritual home, or seeking a deeper understanding of your faith, you'll find a supportive and caring community here.
6433 Lawndale Street, Philadelphia, Pennsylvania 19111, United States -
Lawndale Seventh-Day Adventist Hispanic Church
● OpenWelcome to the Lawndale Seventh-Day Adventist Hispanic Church, a vibrant and welcoming place of worship located at 7114 Oxford Avenue, Philadelphia, Pennsylvania. As a cornerstone of the community, we are dedicated to fostering spiritual growth and providing a nurturing environment for individuals and families alike. Our church is a gathering place for those seeking a deeper connection with faith, offering services and programs in both English and Spanish to embrace our diverse congregation. At Lawndale Seventh-Day Adventist Hispanic Church, we are committed to living out the teachings of Christ through worship, fellowship, and service. We invite you to join us for our weekly Sabbath services, engaging Bible study groups, and various community outreach initiatives. Whether you are new to the area, exploring your faith, or looking for a supportive church family, you will find a warm welcome and a sense of belonging here.
7114 Oxford Avenue, Philadelphia, Pennsylvania 19111, United States -
New Covenant Church Cheltenham PA
● OpenWelcome to New Covenant Church Cheltenham, located at 4201 Princeton Avenue, Philadelphia, Pennsylvania. We are a vibrant place of worship where everyone is welcome, whether you are a believer or someone seeking spiritual guidance. As a community, we are dedicated to proclaiming the love and grace of God, as revealed through His Word. Our mission is inspired by Ephesians 2:10: "For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them." We gather every Sunday for Sunday School at 2:00 PM and Worship Service at 2:30 PM, and on Wednesdays at 7:00 PM for Bible study. These gatherings offer meaningful worship experiences and opportunities to study God's word together.
4201 Princeton Avenue, Philadelphia, Pennsylvania 19135, United States -
ESSA Bank and Trust
● ClosedWelcome to ESSA Bank & Trust - Your Trusted Financial Partner in East Stroudsburg Located at 75 Washington Street, East Stroudsburg, Pennsylvania, ESSA Bank & Trust is committed to providing comprehensive banking and financial services to our community. As a full-service bank, we offer a range of solutions including personal and business banking, commercial lending, and financial advisory services. Our convenient ATM services ensure you have access to your funds whenever you need them.
75 Washington Street, East Stroudsburg, Pennsylvania 18301, United States -
ESSA Bank and Trust
● ClosedWelcome to ESSA Bank & Trust, your trusted partner in banking, finance, and community service located at 5120 Milford Road, East Stroudsburg, Pennsylvania. At ESSA, we pride ourselves on offering a wide range of financial services, including personal and business banking, commercial lending, and financial advisory services through our subsidiary, ESSA Advisory Services, LLC. Our commitment to convenience and security means that even when our corporate offices and branches are closed for holidays like Labor Day, our online banking and mobile apps remain available 24/7 to meet your banking needs. We understand the importance of staying safe online and offer resources to help you navigate the digital world securely.
5120 Milford Road, East Stroudsburg, Pennsylvania 18302, United States -
Petroski Physiotherapy and Performance
● OpenWelcome to Petroski Physiotherapy and Performance, where we redefine the approach to physical therapy and rehabilitation. Located at 108 Chestnut Drive, Newtown, Pennsylvania, our facility is committed to enhancing your health and performance with a personalized touch. Our team of expert clinicians and coaches excels in helping athletes and individuals overcome injuries while fostering an empowering and welcoming environment. We believe in creating a peak experience for every visitor, ensuring you feel comfortable, challenged, and supported throughout your journey. At Petroski Physio, we take the time to understand your unique strengths and weaknesses, crafting a workout and rehabilitation plan tailored specifically to your needs. Whether you're a former college athlete, a current high school coach, or someone dealing with everyday aches and pains, our specialized programs are designed to help you achieve your performance goals and return to your daily routine with confidence.
108 Chestnut Drive, Newtown, Pennsylvania 18940, United States -
PAINT Newtown
● ClosedWelcome to PAINT Newtown, your premier choice for professional interior and exterior painting services in Newtown, Pennsylvania. Located at 28 Hillyer Lane, Newtown, PA 18940, we pride ourselves on being the best in Bucks County, offering top-tier residential painting services that preserve and enhance the historical charm of our beloved colonial borough. At PAINT Newtown, we understand the unique character of Newtown's homes, from the Victorian gems on Washington Avenue to the charming two-story Colonials on State Street. Our certified painters are dedicated to maintaining your home's value and curb appeal with our comprehensive painting services. We offer free color and design consultations for interior projects, ensuring your home reflects your personal style without breaking the bank.
28 Hillyer Lane, Newtown, Pennsylvania 18940, United States -
PA Pain and Rehab - North Broad
● ClosedWelcome to PA Pain and Rehab - North Broad, Philadelphia’s leading facility for pain management and rehabilitation, located at 5700 North Broad Street, Philadelphia, PA 19141. We specialize in treating injuries from car accidents and work-related incidents, providing comprehensive care that includes chiropractic services, physical rehabilitation, and medical treatment. With over 20 years of experience, our dedicated team is committed to helping you recover quickly and effectively, ensuring you return to your normal life as soon as possible. Our patients rave about their experiences with us, feeling like part of our family while receiving top-notch care. Shanise Anderson, a satisfied patient, shared, “I highly recommend PA Pain and Rehab. I truly didn’t believe that my body would be back to normal by the time I was done. I can honestly say that my body is in a better state than prior to being involved in an accident.”
5700 North Broad Street, Philadelphia, Pennsylvania 19141, United States -
PA Pain and Rehab - Butler Street
● ClosedWelcome to PA Pain and Rehab - Butler Street, Philadelphia's leading pain management and rehabilitation facility specializing in car accident and work injury treatments. Located at 537 West Butler Street in the heart of Philadelphia, PA, we are dedicated to helping you recover swiftly and effectively. With over 20 years of experience, our team of skilled chiropractors, physical rehabilitation specialists, and medical professionals, including an orthopedic surgeon, are committed to providing comprehensive care tailored to your unique needs. At PA Pain and Rehab, we understand the challenges and pain associated with accidents. Our patient-centered approach ensures that you receive the best care possible, utilizing cutting-edge chiropractic techniques and personalized rehabilitation plans. We pride ourselves on our ability to work closely with insurance companies and attorneys, handling all the necessary documentation and case management so you can focus solely on your recovery.
537 West Butler Street, Philadelphia, Pennsylvania 19140, United States -
Dr. John J. Bowden Jr., D.O., P.C.
● ClosedWelcome to Dr. John J. Bowden Jr., D.O., P.C., your trusted healthcare provider in Philadelphia, Pennsylvania. Conveniently located at 1738 West Cheltenham Avenue, we are dedicated to offering exceptional medical care to our community. As a highly regarded and experienced physician, Dr. John J. Bowden Jr. specializes in providing comprehensive health services tailored to meet the unique needs of each patient. At our practice, we prioritize patient-centered care and strive to create a welcoming and supportive environment for everyone who walks through our doors. Our team is committed to maintaining the highest standards of medical excellence, utilizing the latest advancements in healthcare to ensure the best outcomes for our patients.
1738 West Cheltenham Avenue, Philadelphia, Pennsylvania 19126, United States -
The Chair Massage Studio
● ClosedWelcome to The Chair Massage Studio, your oasis of relaxation and rejuvenation in the heart of Fishtown, Philadelphia. Located at 619 East Girard Avenue, our studio is dedicated to providing therapeutic chair massage services tailored to fit your busy lifestyle. Owned and operated by Richie Rivera, a licensed massage therapist with over seven years of experience, The Chair Massage Studio offers expert care in a friendly and professional environment. Richie’s passion for the art of massage and his commitment to client relief inspired him to establish his own practice in the vibrant city of Philadelphia.
619 East Girard Avenue, Philadelphia, Pennsylvania 19125, United States -
Petroski Physiotherapy and Performance
● OpenWelcome to Petroski Physiotherapy and Performance, where we redefine the approach to physical therapy and rehabilitation. Conveniently located at 7523 Watson Street, Philadelphia, Pennsylvania, we are dedicated to helping you achieve your performance goals and regain a pain-free lifestyle with personalized care and expertise. At Petroski Physio, we believe in providing more than just treatment; we offer a unique, empowering experience for every individual who walks through our doors. Whether you're an athlete recovering from an injury or someone dealing with everyday aches and pains, our skilled team of clinicians and coaches is here to support you with tailored rehabilitation programs designed specifically for your needs.
7523 Watson Street, Philadelphia, Pennsylvania 19111, United States -
Eastern Regional Medical Center
● OpenWelcome to Eastern Regional Medical Center, located at 1331 East Wyoming Avenue, Philadelphia, Pennsylvania. As a part of the esteemed City of Hope network, our facility is dedicated to providing expert, personalized cancer care. We are proud to be a leader in the delivery of comprehensive, whole-person care, committed to creating the cures of tomorrow for the patients who need them today. At Eastern Regional Medical Center, we understand that a cancer diagnosis can be overwhelming. Our mission is to ensure that you receive the highest quality of compassionate care, with a dedicated team of cancer specialists working collaboratively to tailor a treatment plan that meets your unique needs. Our facility integrates cutting-edge research with advanced treatment options, offering both in-person and telehealth services to accommodate your preferences and circumstances.
1331 East Wyoming Avenue, Philadelphia, Pennsylvania 19124, United States
- walk in care services near me in Beaver
- walk in care services near me in Boyertown
- walk in care services near me in Bristol
- walk in care services near me in Bryn Mawr
- walk in care services near me in Chester
- walk in care services near me in Cranberry Township
- walk in care services near me in Doylestown
- walk in care services near me in Drexel Hill
- walk in care services near me in East Stroudsburg
- walk in care services near me in Easton
- walk in care services near me in Elkins Park
- walk in care services near me in Feasterville-Trevose
- walk in care services near me in Gilbertsville
- walk in care services near me in Grove City
- walk in care services near me in Indiana
- walk in care services near me in Langhorne
- walk in care services near me in Levittown
- walk in care services near me in Malvern
- walk in care services near me in Newtown
- walk in care services near me in Paoli
- walk in care services near me in Pittsburgh
- walk in care services near me in Springfield
- walk in care services near me in Yardley
List of local businesses, places and services in Pennsylvania
⭐ business help 🔍 services ☎ phones 🕒 opening times ✍️reviews 🌍 addresses, locations 📷 photos