• Partners in Your Good Health

    Welcome to Rockville Internal Medicine Group! Our physicians and staff look forward to being lifelong partners in bringing you high-quality care. Make an appointment with us today.

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Top Doctor Award Congratulations to Dr. Cowen, Dr. Esterowitz, Dr. Khetan, Dr. Steinberg, Dr. Pollack, Dr. Rahul Patel, Dr. Brooks, Dr. Shashank G. Patel, Dr. Kellogg, Dr. Luu, and Dr. Berger, for each being a Washingtonian 2016 Top Doctor!

News & Announcements

  • Physician Transitions

    RIMG is pleased to welcome the arrival of new providers to our team! Dr. Lalitha Gudipaty will be joining our Endocrine team on 5/15/17 with a part-time schedule Dr. Aguia… Read More

  • Top Docs for 2016

    2016 Washingtonian Top Doctors Congratulations to the following doctors: Ira Berger Sara Brooks Kelly Cowen Terri Esterowitz Patricia Kellogg Shishir Khetan Le Le Luu Alan Pollack Lawrence Schainker Monika Schlamminger… Read More

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Proud to be Part of Privia Medical Group


Rockville Internal Medicine Group 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.

"I am a new patient with the Rockville Internal Medical Group. I am being treated by Dr. Louisa Ziglar for knee cartilage damage. Her skills in the use of ultrasound guided injections and medical knowledge of bone and joint related diseases are exceptional. Although her specialty is rheumatology, her medical expertise, humanistic approach to treatment protocols, patient care responsibilities, and medical ethics far exceed this designation. I am very fortunate to have Dr. Ziglar as my treating physician. Throughout this process, she has provided extraordinary care in treating my knee issues. Based on my past experience with treating physicians, Dr. Ziglar is unique with respect to her communication skills. She fully communicates clearly and concisely the medical diagnosis and recommended treatment options. I applaud her and her staff for their exceptional communication skills and medical expertise. 5 stars."
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Patient Portal

Privia Medical Group offers patients personalized and secure 24/7 online access to their health records, as well as the ability to communicate with your medical care team through our patient portal.


Schedule Appointments

The easiest way to book an appointment with your provider.

Request Prescriptions

Review prescription medications and request prescription renewals.

Secure Messages

Send and receive secure messages with your medical care team.

View Your Records & Tests

Quick access to your secure electronic medical record and test results.

Pay Your Bill

Pay your invoices by credit card, securely and conveniently.