Individual provider · Type 1 NPI

Thomas E. Maslen, MD

Internal Medicine Physician · Greenbelt, MD

NPI number 1699742791 Active

Practice location

7525 Greenway Center Dr, Suite 316
Greenbelt, MD 20770-3509

Call (301) 220-0200 Map

Fax (301) 345-6956

Specialties and licenses

TaxonomyCodeLicense
Internal Medicine Physician Primary 207R00000XD55559 (MD)

Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…

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About NPI 1699742791

Thomas E. Maslen, MD's National Provider Identifier is 1699742791, issued on Mar 7, 2006. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Greenbelt, MD. The record was last updated on Jul 13, 2026.