Prima Medicine

Internal Medicine & Family Medicine located in Fairfax, VA, South Riding, VA. Also serving Merrifield, VA and Fair Oaks, VA


Washington Top Doctors


Prima Medicine is a state-of-the-art primary care practice that provides exceptional care for adults at its two offices in the metropolitan Washington, D.C., area: Fairfax and South Riding, Virginia. Prima Medicine is part of Privia Medical Group, a national physician-directed, multispecialty medical group known for its commitment to providing superior, coordinated care.

Under the leadership of Washingtonian magazine’s Top Doc, Chethana Rao, MD, the medical and professional staff at Prima Medicine will never rush you through an appointment. The well-trained, compassionate medical staff’s number one job is to help you maintain the best overall health throughout your lifetime. The staff also knows that getting sick isn’t something you can plan ahead of time. In addition to offering regular office hours, same-day or next-day appointments are available as well as weekend hours.

The physicians at Prima Medicine offer a wide range of services to maintain your wellness as well as care for chronic and acute medical conditions. Services include annual physicals, Pap smears, and the management of conditions like acid reflux and peptic ulcers, diabetes, elevated cholesterol, high blood pressure, sleep disorders, and arthritis. To make an appointment, book online or call today.

Physicians of the Month


Dr. Siddique Toghral, MD is an active member of the American Academy of Family Physician. and is fluent in English and Farsi. Dr. Toghral enjoys weight training, playing soccer, and watching cool sci fi-movies.

Joan Qiong Wang, NP is a board-certified family and primary care nurse practitioner.

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Part of Privia Medical Group

Prima Medicine is a proud member of Privia Medical Group. The best doctors in our community have joined together to form Privia Medical Group (PMG), a multi-specialty, high-performance medical group that puts patients first. Our physicians are united by the mission of providing better, more coordinated care for their patients. To learn more about Privia Medical Group and find other Privia doctors, please visit our website. Download the myPrivia App!

What Our Patients Are Saying



Do You Need Urgent Care or the ER?

Experiencing a sudden health issue can be stressful, and you might wonder if you should go to the ER or urgent care. Take a moment to learn more about the ER versus urgent care so you’ll be prepared to make the right choice…

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We are on Instagram
Have questions about high cholesterol? Our website is a great place to start! Schedule your heart-healthy appointment today. #cardiology
It is very common to develop arthritis in the feet, especially as you get older. Osteoarthritis, often known as “wear and tear” arthritis, develops most often in people over age 50, and is caused by cartilage wearing down over time. To learn more about treating osteoarthritis, give our office a call! #arthritis #footpain #osteoarthritis
Your biggest obstacle in life is yourself. Don’t stand in the way of your future, you got this!
Hormones have profound effects on your mental, physical, and emotional health. These chemical messengers play a major role in controlling your appetite, weight, and mood, among other things. If you have a hormone imbalance, we can help correct it so you can finally relax!  #womenshealth #hormones
Earning your green card or United States citizenship is an important time in your life, requiring specific steps to complete the application process. At Prima Medicine, Haritha Yalamanchilli, MD, and her experienced medical team complete immigration physicals and fill out the paperwork needed to clear you for a visa or citizenship. Schedule an appointment with Prima Medicine by visiting our website today!

3 Convenient Locations in Your Area


M-F: 8:30am - 5pm
Sat: 8am - 12pm


M, Tue, F: 8:30am - 5pm
W: Closed
Thu: 8:30am - 12pm
Sat & Sun: Closed

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