Prima Medicine – South Riding Office

Prima Medicine

South Riding Office

Phone:

Fax:

(855) 749-9998


Monday – Friday: 8:30 AM – 5 PM

Featured Providers in South Riding, VA

Prima Medicine – South Riding Office

Haritha Yalamanchilli, MD

Family Medicine & Internal Medicine

Prima Medicine – South Riding Office

Dr. Phanindar Sadhu, MD

Internal Medicine

Prima Medicine – South Riding Office

Josephine Anne Torno, MD

Family Medicine

Prima Medicine – South Riding Office

Shannon Ross, FNP- BC

Internal Medicine

Prima Medicine – South Riding Office

Nicole Iori, RD

Registered Dietician

Prima Medicine – South Riding Office

Juliana Samar, PA, DMSc

Internal Medicine

About the South Riding Office

At Prima Medicine, patients receive attentive, thorough care from professionals who prioritize long-term health and immediate needs alike. It doesn’t matter if you’re coming in for a routine exam, trying to manage a chronic illness, or seeking prompt help for an unexpected illness or injury. Our experienced staff is here for you.

Our South Riding office is staffed by board-certified physicians, physician assistants, and nurse practitioners. We never rush through appointments and encourage patients to take the time they need to ask questions and fully understand their condition. We also offer same-day and next-day appointments, along with weekend hours, so care is always accessible, even when the unexpected happens.

A primary care doctor examining a patient in Fairfax, VA

Services Offered at Our South Riding Location

The Prima Medicine team provides a broad spectrum of medical services to support every stage of adult life. The following are some of our most popular services.

Primary Care

We perform annual physicals, wellness exams, preventive screenings, and Pap smears. Regular visits can help catch potential medical issues early, and personalized care plans keep you on track as you work toward your health goals.

Chronic Condition Management

Our providers collaborate with patients to manage a wide range of long-term health conditions, including diabetes, high blood pressure, elevated cholesterol, arthritis, and sleep disorders. Ongoing treatment is essential to maintaining your quality of life and avoiding complications.

Urgent Care Services

When illness or injury strikes, Prima Medicine’s team offers unmatched support. We treat colds, flu, infections, minor injuries, and other non-life-threatening concerns that require prompt medical attention.

Endocrinology

We evaluate and manage endocrine disorders such as hyperthyroidism, hypothyroidism, diabetes, adrenal issues, and more. Our patients benefit from close monitoring and can get prompt treatment adjustments as needed.

Medical Weight Loss

We offer medically guided weight loss plans and can prescribe GLP-1 agonists like semaglutide and tirzepatide to eligible patients.

Weight loss monitoring programs are overseen by licensed professionals, including Dr. Sylvia Luther, who is certified by the American Board of Obesity Medicine, and Shannon Ross, a board-certified family nurse practitioner. Our team also works with you to address underlying issues and make healthy lifestyle changes.

Concierge Medicine

Patients seeking a more personalized approach to healthcare may benefit from our concierge services, provided by Dr. Mandana Shafai. Dr. Shafai is board-certified in internal medicine with over 25 years of experience.

Concierge medicine gives you more direct access to your doctor, longer appointment times, and a customized treatment experience.

X-Rays

For added convenience, we provide in-office X-rays at our South Riding location. On-site imaging allows our practitioners to assess injuries or health concerns more quickly, which can lead to faster diagnosis and better outcomes.

A physician taking notes and talking to a patient in Fairfax, VA

Functional Medicine

A patient-centered, science-based approach to healthcare that focuses on identifying and addressing the root causes of disease rather than merely treating symptoms. It views the body as an interconnected system and considers how genetics, environment, and lifestyle factors influence long-term health and chronic disease. By emphasizing personalized treatment plans, nutrition, stress management, and preventive care, functional medicine aims to restore optimal function and promote overall wellness.

Why Patients Choose Prima Medicine in South Riding

Patients in the South Riding area choose Prima Medicine for our tailored approach and dedication to excellence. Our staff is committed to building lasting relationships based on trust, compassion, and open communication. We take the time to understand your concerns and develop care plans that reflect your needs and lifestyle.

With flexible scheduling options – including weekend hours – our South Riding location makes high-quality medical treatment convenient. Whether you’re looking for a reliable primary care provider or want to be seen quickly for a pressing health concern, Prima Medicine supports your health and well-being.

Frequently Asked Questions — Prima Medicine South Riding Office

Prima Medicine’s South Riding office is located at 43130 Amberwood Plaza, Suite 130, South Riding, VA 20152, just off Route 50 (John Mosby Highway) in the Dulles South area of Loudoun County. We proudly serve patients from South Riding, Stone Ridge, Aldie, Chantilly, Centreville, and the surrounding Dulles South communities. Call us at (703) 870-3750 (fax: 855-749-9998) or book online to schedule a visit.

Our office sits in the Amberwood Plaza shopping center off Route 50 (John Mosby Highway), minutes from South Riding Town Center and the Dulles South Multipurpose Center, with convenient parking right at the plaza. We’re easily reached from Loudoun County Parkway and Tall Cedars Parkway, a short drive from Stone Ridge and Gum Spring Library, and roughly 15–20 minutes from Dulles International Airport (IAD).

Our South Riding office is open Monday through Friday from 8:30 AM to 5:00 PM. Same-day and next-day appointments are often available, so families and busy professionals in the South Riding area can get care quickly when an unexpected health concern comes up.

Yes, Prima Medicine’s South Riding office is currently accepting new patients. Our board-certified physicians, physician assistants, nurse practitioners, and registered dietitian welcome adults seeking a primary care doctor in South Riding, VA, as well as patients needing immigration medical exams, medical weight loss, or nutrition counseling. Become a patient by calling (703) 870-3750 or booking your first appointment online.

Our South Riding location offers primary care (annual physicals, wellness exams, preventive screenings, and Pap smears), chronic condition management, urgent care services, immigration medical exams, medical weight loss, nutrition counseling, and functional medicine. Patients also have full access to Prima Medicine’s endocrinology and concierge medicine programs, with appointments coordinated at our nearby Fairfax and Tysons offices.

Featured providers at our South Riding office include Dr. Haritha Yalamanchilli, MD (family medicine and internal medicine); Dr. Phanindar Sadhu, MD (internal medicine); Dr. Josephine Anne Torno, MD (family medicine); Shannon Ross, FNP-BC (internal medicine); Juliana Samar, PA, DMSc (internal medicine); and Nicole Iori, RD, our registered dietitian. Every physician on our team is board-certified, and appointments are never rushed.

Dr. Haritha Yalamanchilli, MD, is a board-certified family medicine physician with more than two decades of experience treating patients in primary care and urgent care settings. She completed her family medicine residency at UPMC McKeesport Hospital, where she served as Chief Resident, followed by a women’s health fellowship at the VA Medical Center in Syracuse, New York. Known by her patients as a compassionate and attentive listener, Dr. Yalamanchilli sees patients at our South Riding and Fairfax offices.

Dr. Phanindar Sadhu, MD, is a board-certified internal medicine physician and U.S. Army veteran who served as a Health Care Specialist and Combat Medic from 2010 to 2014, including a year-long deployment to Kandahar, Afghanistan. He completed his residency at the Mount Sinai School of Medicine’s James J. Peters VA Medical Center and brings extensive hospitalist experience across telemetry, stroke, and cardiac care units. A longtime Loudoun County resident who raised his family here, Dr. Sadhu sees patients at our South Riding and Fairfax offices.

Yes. Prima Medicine performs USCIS immigration medical exams (Form I-693), often called green card physicals, for applicants in South Riding, Chantilly, Aldie, Stone Ridge, and across Loudoun County. Our team completes the exam and required paperwork in accordance with USCIS requirements and helps you move your application forward without delays. Call (703) 870-3750 to schedule your immigration medical exam.

An immigration medical exam includes a review of your medical and vaccination history, a physical examination, and the lab tests USCIS requires — such as tuberculosis blood testing and, depending on your age, screening for syphilis and gonorrhea. We also review your immunization records against the required vaccine list and administer any missing vaccines, then complete your Form I-693 paperwork.

Bring a government-issued photo ID or passport, your vaccination and immunization records (with certified English translations if needed), a copy of Form I-693 (do not sign it in advance), a list of current medications, and any relevant medical records. Arriving with complete documentation helps us finish your exam and paperwork in as few visits as possible. Our team can answer questions about fees and scheduling when you call.

Yes. Prima Medicine has an endocrinologist on our team who sees patients at our nearby Fairfax office. If you’re a South Riding patient dealing with a thyroid disorder, diabetes, an adrenal condition, or another hormone-related concern, we will set you up with an endocrinology appointment at the Fairfax location — and because all Prima Medicine offices share one medical record, your care stays fully coordinated with your South Riding primary care provider.

Yes. Nicole Iori, RD, provides nutrition counseling at our South Riding office. Working with a registered dietitian can help you manage diabetes, high cholesterol, and high blood pressure; support a medical weight loss program; or simply build sustainable, healthier eating habits. Nutrition visits pair well with your regular primary care checkups for a complete picture of your health.

Yes. Our South Riding office offers physician-supervised medical weight loss programs and can prescribe GLP-1 medications such as semaglutide and tirzepatide to eligible patients. Programs are overseen by licensed professionals, including Dr. Sylvia Luther, MD, who is certified by the American Board of Obesity Medicine, and Shannon Ross, FNP-BC. We pair medication with nutrition guidance, body composition testing, and ongoing monitoring.

Yes. Our South Riding team treats colds, flu, infections, minor injuries, and other non-life-threatening conditions that need prompt attention, with same-day and next-day appointments often available. For life-threatening emergencies such as chest pain, stroke symptoms, or severe bleeding, call 911 or go to the nearest emergency room.

Prima Medicine accepts most major commercial insurance plans as well as Medicare. Because coverage varies by plan, we recommend reviewing our insurance page at primamedicine.com or calling (703) 870-3750 so our team can verify your specific benefits before your visit. Our staff is happy to help new South Riding-area patients understand their coverage.

Yes. Concierge medicine at Prima Medicine is provided by Dr. Mandana Shafai, MD, who is board-certified in internal medicine with more than 25 years of experience. Dr. Shafai sees concierge patients at our Fairfax and Tysons offices, and our South Riding team will set you up at whichever location is most convenient for you. Concierge membership gives you more direct access to your physician, longer appointments, and a highly personalized care experience.

Yes, we offer Emsella at our Fairfax office. Emsella is a non-invasive, FDA-cleared treatment that strengthens the pelvic floor using high-intensity focused electromagnetic (HIFEM) energy — delivering the equivalent of thousands of Kegel-like contractions in a single session while you sit, fully clothed, on the Emsella chair. It’s used to improve pelvic floor strength and urinary incontinence in both women and men, with no surgery, no downtime, and sessions of about 30 minutes.

You can schedule an appointment by calling (703) 870-3750, booking online through the “Book Now” button on our website, or messaging us through the patient portal if you’re an existing patient. Same-day and next-day appointments are often available, making it easy for patients in South Riding, Stone Ridge, Aldie, and Chantilly to be seen quickly.

Schedule an Appointment Today

Your health deserves attention that’s both accessible and compassionate. If you’re in the South Riding, VA, area and looking for comprehensive, responsive treatment, reach out to Prima Medicine. Same-day and next-day appointments are often available.

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