“I believe that patients need to be involved in their health care decisions. My role as a physician is to educate and inform patients and to be their conscience. The doctor-patient relationship works best when it is a true partnership.”

Accepts new patients for Pulmonary
ONLY accepting new patients for Pulmonology. **NOT** accepting Primary Care new patients.

Board Certification

  • Internal Medicine

Areas of Expertise

  • Asthma
  • Chronic Cough
  • COPD



Georgetown University Hospital
Internal Medicine
Washington, DC


Drexel University College of Medicine
Internal Medicine
Philadelphia, PA

Medical School

SUNY Downstate Medical Center
Doctor of Medicine
New York, NY


Tufts University
Bachelor of Science
Medford, MA

Hospitals Affiliated With

Adventist HealthCare Shady Grove Medical Center
Suburban Hospital

Professional Associations

American College of Chest Physicians (ACCP)

American College of Physicians (ACP)
1993 – Present


“NMDA receptors are involved in the ventrolateral nucleus tractus solitarii for termination of inspiration” European Journal Of Pharmacology (1995): 277:195-208. Berger, I.L., Gillis, R.A., Vitagliano, S., Panico, W.H., Magee, S., Kelly, M., Norman, W.P., McManigle, J.E., Dasilva, A.M.T.

“Analgesia, sedation and paralysis in the intensive care unit” American Family Physician (1995): 166-172. Berger, I.L., Waldhorn, R.E.

Academic Appointments

Georgetown University
Clinical Instructor
2013 – Present

George Washington University
Clinical Instructor
2005 – 2013

Personal Interests

Dr. Berger enjoys spending time with his wife, 3 kids, dog and cat. He is a huge sports fan and roots for the Nationals, Wizards, Georgetown Hoyas and N.Y. Jets. He plays basketball, tennis, and softball and makes sure he gets his minimum 10,000 Fitbit steps every day. His hobby is collecting old baseball cards.


Dr. Berger received his BS from Tufts University in 1983. He received his MD degree from SUNY Downstate in Brooklyn in 1987. He completed his Internal Medicine residency at Drexel University College of Medicine in 1990 and did his Pulmonary critical care fellowship at Georgetown University Hospital from 1990 to 1993. Dr. Berger has been a member of Rockville Internal Medicine Group since 1993. He enjoys teaching medical students and has been a clinical instructor at George Washington University School of medicine from 2005 to 2013 and has been a clinical instructor at Georgetown University School of Medicine from 2013 to present. He has been named a Washingtonian Top Doctor in every issue since 2005 and has been listed as a Top Doctor in the Washington Consumers Checkbook 2007 to present.