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

Thomas E. Maslen, MD LLC

Organization Internal Medicine Physician · NPI 1801980834

Thomas E. Maslen, MD LLC is an Internal Medicine Physician in Greenbelt, Maryland. Licensed in Maryland. Registered with an NPI since 2006.

Licensed in
MD
In the registry since
2006
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

7525 Greenway Center Dr Ste 316
Greenbelt, MD 20770-3509
Phone: (301) 220-0200
Fax: (301) 345-6956
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 D55559 (MD)

Record details

NPI number1801980834
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Thomase Maslen — Medical Director · (301) 220-0200
NPI enumeratedOctober 3, 2006
Last updated in NPPESAugust 22, 2020
Mailing address7525 Greenway Center Dr, Suite 316, Greenbelt, MD 20770-3509

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