Coronavirus Announcement

We strive to provide great healthcare, here at Mt Vernon Internal Medicine. Our offices are still following COVID protocols, we are still requiring each patient to wear a mask, come to your appointments alone(no children), and please do not come to the office if you are experiencing any COVID symptoms. If you have been exposed to COVID please plan to quarantine for 5 days and wear a KN95 or N95 for an additional 5 days.  We can connect with you virtually if you have any questions, please call us at 703. 780.2800 or using our patient portal.

The Lorton Location has moved please see below for information.

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

We will be offering the Pfizer COVID-19 vaccine beginning August 2nd by Lab appointment ONLY.

After Hours Care

Alexandria Office:
7am to 7pm Monday and Tuesday

News & Announcements


Mount Vernon Internal Medicine is now offering a limited number of daily visits for patients with viral symptoms.    These ‘sick visits’ are limited through the day and will be seen… Read More

July Announcements

We are happy to announce that there will be two new providers joining our practice. Please join us in welcoming Dr. Gerst to the Lorton Office and Daniel Emery, NP… Read More

*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

Proudly Part of Privia Health


Mount Vernon Internal Medicine is proudly part of Privia Health. Privia connects us with leading doctors in the community to transform healthcare by delivering high-quality, coordinated care that is centered on our patients.

To learn more about the resources that help you manage your healthcare, or to find other Privia doctors, visit their website.

"Dr. Tylenda is very knowledgeable and friendly. I trust her with my care."

Lorton Market Office


9455 Lorton Market St
Lorton, VA 22079 Get Directions



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Alexandria Office


8109 Hinson Farm Rd Suite 504
Alexandria, VA 22306 Get Directions


This location has extended hours Monday 7:00pm for acute medical conditions only Learn More

Springfield Office


6128 Brandon Avenue Suite 201
Springfield, VA 22150 Get Directions


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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.
Patient Portal