Collin D. Cullen, MD

Internal Medicine
4400 Jenifer Street NW Suite 350
Washington, DC 20015 Get Directions
Collin D. Cullen, MD
More information available

Annual Membership Fee

495.00 every 3 months
990.00 every 6 months
1,980.00 each year

My Philosophy and Approach to Wellness...

I was raised in a primary care household with an admiration for family medicine. I had a front row seat, as my father was a general practitioner in the DC area for 30 years. Practicing primary care with my brothers over the last 21 years has been the most rewarding part of my career; learning from some of the finest and giving patients optimal care. My MDVIP-affiliated practice focuses on the relationship between the physician and the patient. My approach is grounded in the belief that the doctor-patient connection is the foundation of all successful healthcare. Listening to the patient has always been the most important diagnostic test. I also offer conveniences, like same- or next-day appointments that start on time, which may be found in concierge medicine practices.   

As a native Washingtonian, I have served the Northwest DC, Montgomery County, Maryland and Sibley Hospital communities my entire professional life. I am dedicated to preventive medicine and am uniquely qualified to serve this area because this is where, and how, I was raised.

Dr. Cullen's Credentials

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Geisinger Medical Center
Danville, PA
Internal Medicine 1994-1997
Chief Resident, Internal Medicine & Pediatrics 1997

Geisinger Medical Center
Danville, PA

Medical School:
Georgetown University School of Medicine
Washington, DC
Doctorate of Medicine 1993

LaSalle University
Philadelphia, PA
Bachelor of Arts, Biology and English 1989

American Board of Internal Medicine 
Sibley Memorial Hospital
Annual Top Doctor Award, Washingtonian Magazine 2000-present
Sibley Hospital
 - Peer Review, Internal Medicine 2015-present
 - Secretary/Treasurer, Department of Medicine 2018-present
 - Member at Large, Department of Medicine 2015-2018
District of Columbia

Testimonials from patients of Dr. Cullen

from FRANK in MD March 12, 2020 for Collin D. Cullen, MD

Over a year ago, long before the Corona Virus controlled our universe, I came back from a trip to South Africa with a "horrible bug:" fever, chills, lack of appetite etc. Dr. Cullen prescribed the lowest level of antibiotic that might due the trick. Well it didn't, BUT I admired his careful diagnosis and caution in not over prescribing medications or treatments. He followed… See more

from Alison in MD March 12, 2020 for Collin D. Cullen, MD

Dr. Cullen has been very prompt in answering my emails and phone calls.
Also, I recently had my annual physical and he was extremely thorough and gave very detailed, specific suggestions which I am in the process of incorporating.

from Gundu in MD March 12, 2020 for Collin D. Cullen, MD
Image provided by: Gundu

In my half a century of stay in the USA, Dr. Collin Cullen is just the second internist, that I am seeing for my general preventive healthcare. I am a long-term diabetic (>20years), and I do need constant check-ups to keep me free of diabetes-related clinical complications, such as neuropathy, nephropathy, retinopathy, and vasculopathy. I started seeing Dr. Cullen when we moved from… See more