Diabetic teaching classes will be held:

  • Thursday January 5th

  • Thursday February 2nd

Please check this website the day of the class to ensure there have not been any schedule changes.

All class times are 1:30 pm - 3:00 pm and are $10 per class.  Please call Tierra 301-762-5020 x 3040 to reserve a place and walk-ins are always welcome!


Endocrine medical team

RIMG's medical team for our endocrine patients are:

Dr. Amy Rogstad, Endocrinologist, Dr. Gerti Tashko, Endocrinologist and Ms. Susan Pappas, Nurse Practitioner.

In order to expedite your appointment with one of our endocrinologists, you may see Susan Pappas, CRNP prior to your appointment with Dr. Rogstad or Dr. Tashko.  Ms. Pappas has over 40 years experience, is a Certified Diabetes Educator and is Board Certified in Advanced Diabetes Management.  She works collaboratively with Drs. Rogstad and Tashko to review your plan of treatment and is available to respond to your questions and medication renewals when the physicians are not available.


RIMG is proud to announce an Olney, MD location!

RIMG patients can be seen at our Olney location for internal medicine appointments with Dr. Daphna Henkin, Dr. Shashank Patel or Katherine Kemper Dean, CRNP.  

The appointment hours are 8:30 am -4:30 pm Monday - Friday with evening appointments available on Monday and Wednesday from 5:00 pm - 7:00 pm with the nurse practitioner.  Please call our Olney location to schedule an appointment, 301-933-5050.


Group Therapy at Rockville Internal Medicine Group

Starting in January 2017, RIMG will be offering a new group on Thursday afternoons called "Coping with Chronic Illness." Facilitated by our clinical psychologist Dr. Stephanie Park, this group will focus on learning coping skills and meeting others in a supportive environment as we discuss living with a chronic medical or mental health condition. To learn more or to sign up, please call 301-762-5020.

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

RIMG would like to emphasize the importance of Mindfulness Meditation for our patients.

Some cell phone apps are:

  • Relax Melodies
  • Buddhify
  • Head Space
  • Meditation Timer Pro
  • Omvana
  • Take a Break!
  • Calm


  • The Mindful Path to Self-Compassion by Christopher K. Germer, PhD
  • Mindfulness for Beginners: Reclaiming the Present Moment – and your life by John Kabat-Zinn
  • Wherever You Go, There You Are: Mindfulness Meditation in Everyday Life by John Kabat-Zinn
  • Peace Is Every Step: The Path of Mindfulness in Everyday Life by Thich Nhat Hanh


  • “Guided Mindfulness Meditation: A Complete Guided Mindfulness Meditation Program” by John Kabat-Zinn

Mindfulness Meditation Classes

  • Casey Health Institute, caseyhealth.org






If you are unable to sleep and feel unrested in the morning or have excessive daytime sleepiness please contact our sleep center for a consult, 301-762-5020 ext 3088



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