Summary

Dr. Dennis Cullen is an internal medicine physician with 44 years of experience caring for patients with a wide range of health conditions. He earned his medical degree from Georgetown University School of Medicine and completed his residency training at Georgetown University Medical Center. Dr. Cullen speaks English and brings more than four decades of clinical expertise to his practice.

Dr. Cullen is affiliated with Sibley Memorial Hospital and Suburban Hospital, with practice locations in both Bethesda, Maryland and Washington, DC. He treats patients with conditions such as type 2 diabetes, vertigo, and mobility issues including limping. His approach to care includes physical therapy, strength training, and manual therapy techniques to help patients improve their overall health and function. Patients have given Dr. Cullen an average rating of 4.6 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.6
  • 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

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Dennis Aloysius Cullen has 4 locations

Cullen Umosella Cullen And Cullen Medical Group

7625 Wisconsin Ave Ste 101Bethesda, MD 20814
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
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

Suburban Hospital

8600 Old Georgetown RdBethesda, MD 20814

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Dr. Dennis Aloysius Cullen, MDLeanne Antioquia, FNPDr. Masud R. Baksh, MDDr. Brad B. Moore, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
44 Years of Experience 42 Years of Experience 37 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 , MDBowie , MDLeesburg , VAWashington , DC
Med School: Georgetown University School Of Medicine Med School: Chittagong Medical College And Hospital Med School: Hahnemann University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Dennis Aloysius Cullen

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Dennis Aloysius Cullen has the following specialty

Specialty Expertise

Dr. Dennis Aloysius Cullen has the following 7 areas of expertise

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

Certifications, License, & Education

44 Years Experience

Dr. Dennis Aloysius Cullen holds expired and active medical licenses in the states of District Of Columbia and Maryland.

Medical License

Medical Doctor with an expired medical license in the state of District Of Columbia that expired in 2026 and an active medical license in the state of Maryland that expires in 2026.

Education & Training

Residency

Completed their residency at Georgetown University Medical Center.

Medical School

Graduated from Georgetown University School Of Medicine in 1982.

NPI Number

Dr. Cullen's NPI number is 1104988054.

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Frequently Asked Questions

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.
Where is Dr. Dennis Cullen's office located?
Dr. Dennis Cullen's office is located at 7625 Wisconsin Ave Ste 101, Bethesda, MD, 20814.
Which hospitals is Dr. Dennis Cullen affiliated with?
Dr. Dennis Cullen is affiliated with Sibley Memorial Hospital and Suburban Hospital.
How can I make an appointment with Dr. Dennis Cullen?
You can find contact information for Dr. Dennis Cullen here on Vitals.
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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