Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Dennis Aloysius Cullen, MD

Individual provider Internal Medicine Physician · NPI 1104988054

Dr. Dennis Aloysius Cullen, MD is an Internal Medicine in Oxon Hill, Maryland. Graduated from Georgetown University School of Medicine in 1982, 44 years ago. Practices with Privia Care Center LLC, a 287-clinician group and accepts Medicare assignment. Licensed in District of Columbia and Maryland.

Years since qualifying
44
Trained at
Georgetown University School of Medicine
Licensed in
DC, MD
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6188 Oxon Hill Rd Ste 704
Oxon Hill, MD 20745-3151
Phone: (301) 839-2790
Fax: (301) 839-3042
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0040216 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD14432 (DC)

Record details

NPI number1104988054
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 15, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Privia Care Center Llc — 287 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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