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

Thomas McNamara, MD

Individual provider Internal Medicine Physician · NPI 1427047877

Thomas McNamara, MD is an Internal Medicine in Bethesda, Maryland. Graduated from Georgetown University School of Medicine in 1975, 51 years ago. Practices with Bethesda Medical Associates, a 7-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
51
Trained at
Georgetown University School of Medicine
Licensed in
MD
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

10215 Fernwood Rd Ste 100
Bethesda, MD 20817
Phone: (301) 493-4440
Fax: (301) 493-9778
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 D0032610 (MD)

Record details

NPI number1427047877
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 18, 2005
Last updated in NPPESJanuary 16, 2017

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1975 (51 years in practice)
Group practice Bethesda Medical Associates — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Bethesda