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 FLU SHOT CLINICS: Walk in clinic flu shot clinics are Mondays and Wednesdays from 8am - 4:00pm RIMG has flu shots available please call for an appointment from 8:00am - 4:00pm. We have regular, quadrivalent and high dose flu shots available. A high dose flu shot is recommended for our patients 65 years and older. Quadrivalent flu shots are recommended for our high risk patients.

NEW RHEUMATOLOGIST: Rockville Internal Medicine Group is pleased to announce the addition of Dr. Louisa Ziglar, a Board Certified Rheumatologist. Dr.Ziglar will join Drs. Schainker, Samuels, and Simchowitz in caring for patients with Rheumatology disorders. Her areas of interest include rheumatoid arthritis and osteoporosis. Dr. Ziglar will be joining us on September 21, 2015. Contact the call center at 301-762-5020 Option#2 to schedule an appointment.

Our Specialties

We are dedicated to your overall good health. In addition to providing primary care we have a special focus on Pulmonology, Rheumatology, Gastroenterology, Sleep Medicine, Endocrinology, Dermatology and Healthy Living.


Practice News


Now Accepting New Patients!

Several specialists at Rockville Internal Medicine Group are now accepting new patients.



2015 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
  • William Steinberg
  • S. Grace Woo