Dr. Dennis A. Cullen, MD | Bethesda, MD | Internal Medicine

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Dr. Dennis Cullen is an internal medicine physician who has dedicated over four decades to patient care. He earned his medical degree from Georgetown University School of Medicine and completed his residency at Georgetown University Medical Center. With 44 years of clinical experience, Dr. Cullen brings extensive knowledge to diagnosing and treating adult health conditions. He communicates with patients in English.

Dr. Cullen practices at Sibley Memorial Hospital and Suburban Hospital, with locations in both Bethesda, Maryland and Washington, DC. His clinical expertise includes managing colon polyps and addressing vitamin D deficiency. He also provides care for patients experiencing mobility issues like limping. Dr. Cullen performs lower gastrointestinal endoscopy procedures and incorporates physical therapy and strength training into treatment plans when appropriate. Patients have rated him 4.6 out of 5 stars on Vitals.

AI-generated from data on this provider profile.

accepting new patients
4.6

22 Ratings
44 years of experience
speaks English
Georgetown University Medical Center
10 written reviews
1 specialty
7 areas of expertise
1 board certification
2 hospital affiliations
4 office locations
Male

22 ratings & reviews

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Showing 1 to 10 of 10 reviews

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Got hit with a $167 bill + the ridiculous $45 "clerical fee" for established patients. Long story short, they should have run my insurance before putting me in a room. It says they accept MedStar insurance but BEWARE...it is not all MedStars.

May 3rd, 2019

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Dennis Cullen has been our primary care physician for well over 20 years. He is a excellent diagnostician and has been right on the money in addressing our fortunately minor medical needs so far. We trust Dennis implicitly. Not everyone can say that about their physician.

February 18th, 2019

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Dr. Cullen is the most caring doctor I have ever met. He cares not only about your health but your well being. You can call him and he will return your call. When you are a family member who is a patient is in the hospital he visits both morning and evening.

September 6th, 2016

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He is an excellent doctor, very caring.

March 10th, 2015

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Brilliant with a great sense of humor. Always has time for me.

July 4th, 2013

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Have had nothing but good things to say about the entire Cullen practice, with Dr. Dennis right there on top!

September 28th, 2010

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Dr. Dennis Cullen has been our family's life saver in the midst of mighty big medical storms.He was the first to look at me and send me to the correct doctor and facility to treat my lymphoma. Then he comes back and help us get the Dad in the family correct diagnosis for his disease. His has a caring manner is impeccable to say the least.He is genuine and cares about the person that he is treating.He listens to his patients and welcomes you being an advocate in your health. He has been our family doctor for at least 15 years. I am elated that he opens his office to just us everyday class people. The staff in Oxon Hill office are professional and efficient portraying outstanding customer service just like him. We are proud that Dr. Dennis Cullen is our doctor and friend.We can use more well educated,professional,confident and family oriented doctors in the medical field besides the Cullen Men. We are grateful for you and your practice.

September 18th, 2010

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excellent physician!

October 13th, 2009

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Very efficient and caring physician.

June 12th, 2009

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Dr. Cullen is the perfect physician. He really makes you feel at ease with his humor. Is a very caring Dr. A fantastic staff.

September 5th, 2008

Cullen Umosella Cullen And Cullen Medical Group

7625 Wisconsin Ave Ste 101Bethesda, MD 20814

Tel: (301) 951-0420

Mon9:00 am - 5:00 pm

Tue9:00 am - 5:00 pm

Wed9:00 am - 5:00 pm

Thu9:00 am - 5:00 pm

Fri9:00 am - 5:00 pm

SatClosed

SunClosed

Linz Audain Md Llc

5255 Loughboro Rd NwWashington, DC 20016

Tel: (240) 602-1730

Mon8:00 am - 5:00 pm

Tue8:00 am - 5:00 pm

Wed8:00 am - 5:00 pm

Thu8:00 am - 5:00 pm

Fri8:00 am - 5:00 pm

SatClosed

SunClosed

Sibley Memorial Hospital

5255 Loughboro Rd NwWashington, DC 20016

Tel: (202) 537-4000

Suburban Hospital

8600 Old Georgetown RdBethesda, MD 20814

Tel: (301) 896-3100


Dr. Dennis Aloysius Cullen, MD	Dr. Rakesh Malik, MD	Dr. Brad Bertram Moore, MD	Dr. Matthew Bruntel, DO
Internal Medicine	Internal Medicine	Internal Medicine	Internal Medicine
Accepts New Patients		Accepts New Patients	Accepts New Patients
4.6 (22 Ratings)	3.9 (55 Ratings)	5 (9 Ratings)	4.6 (11 Ratings)
44 Years of Experience		37 Years of Experience	22 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option
Speaks English	Speaks English	Speaks English	Speaks English
Bethesda , MD	Germantown , MD	Washington , DC	Gaithersburg , MD
Med School: Georgetown University School Of Medicine	Med School: University College of Medical Sciences, New Delhi, India	Med School: Hahnemann University School Of Medicine	Med School: Philadelphia College of Osteopathic Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare
Accepts Medicaid

Internal Medicine

Check-up
Heartburn
Immunization
Physical
Vaccination
Weight Loss
Weight Loss (non-surgical)

MEDICAL LICENSE

Medical Doctor, District Of Columbia, 2026, Expired

Medical Doctor, Maryland, 2026, Active

EDUCATION & TRAINING

Residency

Georgetown University Medical Center

Medical School

Georgetown University School Of MedicineGraduated in 1982

Dr. Jennie Zhang, DO
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(1)
Dr. Charles Natanson, MD
Anesthesiology
49 Years Exp | Washington, DC
(1)
Dr. Chinwe Chi Unegbu, MD
Anesthesiology
20 Years Exp | Washington, DC
(0)
Dr. Dmitry Yakov Goldin, MD
Vascular & Interventional Radiology
17 Years Exp | Brandywine, MD
(0)
Dr. Romy Chung Ott, MD
Neuroradiology
17 Years Exp | Kensington, MD
(1)
Dr. Elizabeth Girma Befekadu, MD
Critical Care Medicine
26 Years Exp | Germantown, MD
(0)
Dr. Jason Allen Regules, MD
Infectious Disease
24 Years Exp | Bethesda, MD
(0)
Dr. Anil Kumar Mahajan, MD
Emergency Medicine
43 Years Exp | West Norriton, PA
(8)

How can I make an appointment with Dr. Dennis Cullen?: You can find contact information for Dr. Dennis Cullen here on Vitals.
Where is Dr. Dennis Cullen's office located?: Dr. Dennis Cullen's office is located at 7625 Wisconsin Ave Ste 101, Bethesda, MD, 20814.
Does Dr. Dennis Cullen accept virtual/telehealth appointments?: Dr. Dennis Cullen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Dennis Cullen accepting new patients?: Dr. Dennis Cullen is accepting new patients on Vitals. View Dr. Dennis Cullen's profile on Vitals to make an appointment.
Does Dr. Dennis Cullen accept my insurance?: You can see the insurance plans that Dr. Dennis Cullen accepts on their Vitals profile.

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