When my wife suffered a cardiac arrest at the opposite end of the country, Dr. Cullen provided me with caring support throughout her eventual recovery.
Collin D. Cullen, MD
Washington, DC 20015 Get Directions
Annual Membership Fee
My Philosophy and Approach to Wellness...
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
Geisinger Medical Center
Danville, PA
Internal Medicine 1994-1997
Chief Resident, Internal Medicine & Pediatrics 1997
Geisinger Medical Center
Danville, PA
1993-1994
Georgetown University School of Medicine
Washington, DC
Doctorate of Medicine 1993
LaSalle University
Philadelphia, PA
Bachelor of Arts, Biology and English 1989
Castle Connolly Top Doctor, 2019-2024
- 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
Our family has benefited from the wisdom of Collin Cullen, MD for decades. He stays up to date. He responds to calls and sometimes is the person answering the call if we call after hours. He is personalble meaning that he listens thoroughly, responds with knowledge and care and takes the time that you need to describe what you are experiencing and to explain the options for treatment and… See more
Dr Cullen has been Uber responsive to my inquiries for the last several years. Cookie
I can depend on Dr. Cullen to return my phone calls promptly and giving me sound advice after hearing my problem. He is very caring, supportive and knowledgeable. He takes the time to explain why he is recommending something to me and to make sure that I understand before ending the phone call. I am extremely fortunate to have him as my doctor and he is greatly appreciated by me. On top of all… See more
I have known my doctor, Collin Cullen, for over thirty years. Most of that time was outside of MDVIP. There’s not a single moment to report here that comes to mind. What does come to mind is his constant dedication to his patients and the high quality of care he delivers. Even though for a substantial period of those thirty years my wife and I moved and lived well over an hour from Dr. Cullen’… See more
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.
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
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