Coronavirus Announcement
For your safety and the safety of others, if you have a fever, cough, and/or shortness of breath, please stay at home and call 703.780.2800. You can also schedule a virtual visit.
We have a pop up COVID-19 testing site at our Lorton location. The hours of this testing site are currently Monday-Friday 8am-12pm. To get tested, you need to schedule a virtual visit with any of our providers. After the visit, you will be given a number to call when you arrive, and you will be given directions on where to park.


There are many reasons to prefer virtual visits, including convenience and safety. Schedule your next follow-up, consultation, or medication refill as a virtual visit. Schedule Virtual Visit
After Hours Care
Alexandria Office:
7am to 7pm Monday and Tuesday
News & Announcements
*NEW* Credit Card On File Policy
As you know, if you have ever checked into a hotel or rented a car, the first thing you are asked for is a credit card,* which is scanned and… Read More
Coronavirus Alert
Dear Patients: The Alexandria Health Department (AHD) and the Virginia Department of Health (VDH) are closely monitoring an outbreak of respiratory illness caused by a novel (new) coronavirus (termed “2019-nCoV”)… Read More
Welcome Dr. Mark Sullivan!
Welcome our new provider Dr. Mark Sullivan at the Springfield Office ! Available Monday thru Friday. Doctor Mark Sullivan Es un doctor con experiencia que empezara practicando Medicine Interna… Read More
Proud to be Part of Privia Medical Group

Mount Vernon Internal 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.
"Dr. Siddon took plenty of time to hear my situation and explain options for me."
Our Offices
Alexandria Office
Address:
Contact:
Hours:
Lorton Station Office
Address:
Contact:
Hours:
Patient Portal
Access your personal health information and test results, securely message your care team, and manage payments, all from one spot and at your convenience, 24/7.
- See your provider's openings and schedule appointments.
- Review prescription medications and request renewals.
- View payment history and pay current invoices.
