Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Medstar Medical Group - Southern Maryland LLC

Internal Medicine Physician in Ft Washington, MD · enumerated 2025 · authorized official Alan Buster, C.O.O..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649077678

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Registry record

Entity type Organization (Type 2)

Legal business name Medstar Medical Group - Southern Maryland LLC

Other name <Unavail>

Practice address 900 East Swann Creek Road, Ft Washington, MD, 20744

Phone (301) 292-1590

Fax (301) 861-1210

Enumeration date Feb 27, 2025

Last updated in NPPES Aug 1, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians Secondary

207ZC0006X Clinical Pathology Physician Allopathic & Osteopathic Physicians Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Alan Buster

Title C.O.O.

Phone (301) 373-7905

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Medstar Medical Group - Southern Maryland LLC?

The NPI for Medstar Medical Group - Southern Maryland LLC is 1649077678, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Medstar Medical Group - Southern Maryland LLC?

NPPES lists Alan Buster (C.O.O.) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-01.