Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Medstar Medical Group - Southern Maryland LLC

Surgery Physician in Waldorf, MD · enumerated 2026 · authorized official Alan Buster, Coo.

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

National Provider Identifier

1639019573

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Medstar Medical Group - Southern Maryland LLC

Practice address 3261 Old Washington Rd 1012, Waldorf, MD, 20602

Phone (301) 843-9060

Fax (301) 645-3092

Enumeration date Mar 31, 2026

Last updated in NPPES May 11, 2026

Taxonomy & classification

208600000X Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Alan Buster

Title Coo

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

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

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

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

The NPI for Medstar Medical Group - Southern Maryland LLC is 1639019573, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-05-11.