Family & Internal Medicine Fairfax, VA: Prima Medicine

Serving 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.

Staff photo of Prima Medicine

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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Stretching your quadriceps, calf, hip flexors, hamstrings, and butt muscles helps to promote joint mobility and flexibility. Staying flexible overall helps maintain healthy joints as you get older! #healthyjoints #flexibility
Smoking is the most important risk factor for bladder cancer. People who smoke are at least 3 times as likely to get bladder cancer as people who don't. Smoking causes about 50% of all bladder cancers in both men and women. Talk to your doctor today! #cancer #stopsmoking
Lacerations can be painful and unpleasant. It's important to keep the affected area clean and dry to avoid infection. A topical antibiotic ointment can help promote healing and prevent scarring. If the laceration is deep or continues to bleed, seek medical attention and reach out to us to help. #lacerationcare #firstaidtips #familymedicine
When the symptoms of arthritis make it difficult for you to work or keep active, the experienced medical team at Prima Medicine offers solutions. Chethana Rao, MD, and her compassionate staff offer comprehensive care and long-term treatments for managing your arthritis. Don’t let the pain of chronic arthritis slow you down. Schedule a consultation for arthritis today by visiting our website!
Physicals are an important part of maintaining your overall health. Yearly check-ups can often catch health issues early before they become serious. Remember to schedule your next physical and stay healthy! #familymedicine #healthtips #physical

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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All offices will be closed on Thursday,

July 4th for the holiday.