Dr. Cullen is a fantastic listener, very smart, always right, generous with his time, efficient, professional, and available. He is my peace of mind. I’m so grateful he is my doctor. He makes it an impossible choice to relocate because there is no other like him. Dr. Cullen is an absolute one of. He gives me confidence and hope. Other physicians are complimentary as well. I have an… See more
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
In December I had annual mammogram and was told something questionable showed up. I would need to have another mammogram as well as an ultrasound. After having that done I was told I needed to have a biopsy of the area. As a breast cancer survivor I was naturally nervous an very concerned. Before scheduling the biopsy I wanted to talk to Dr. Cullen, my PCP. I was able to talk with him… See more
My story has more to do with consistency than any specific occurrence. Dr. Cullen has always been incredibly responsive regardless of the day of the week, or the time of day. It’s very comforting to know I can depend on him to be there for me when called upon.
Dr. Cullen is a perfect example of the dedication to his patients. And I'm no exception. If I have any questions regarding the correct amt. of a particular drug dosage I take, for instance, or understanding what symptoms I have that most times Dr. Cullen can diagnose, he'll return my call the very same day, usually within 12 hours. In addition, very good bedside manner.
Mostly, I like him. He is very responsive when I call him. All around good guy.
My husband and I can't give enough praise to Dr. Collin Cullen. My husband has been with Dr. Cullen ever since he joined MDVIP. I was so impressed with Dr. Cullen, that I left my PCP after about 20+ years to join MDVIP BECAUSE I WANTED TO HAVE Dr. Cullen as my personal care provider. He has returned calls to us at all hours, weekend and weekday, even very late at night. Dr. Cullen has… See more
Dr Collin Cullen has been my doctor for many years. He has always been promptly available and very knowledgeable and helpful with health matters I have raised with him, and has made thoughtful, useful suggestions/recommendations. I am most pleased with his performance.
Dr. Collen Cullen is always there for me and my family, for whatever we need. Whether it’s seeing us in person, talking via telehealth. Or email or text. He’s always there for us!
History of care with Dr Cullen revolves around always being able to get in touch and solve all problems with great care and speed He’s simply an amazing diagnostician and care giver