NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mill Street Medical Group LLC

Family Medicine Physician in Hagerstown, MD · enumerated 2015 · authorized official Malena Jean-Smith, Administrator.

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

National Provider Identifier

1134508450

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mill Street Medical Group LLC
Practice address 340 Mill St, Hagerstown, MD, 21740
Fax (301) 498-1439
Enumeration date May 19, 2015
Last updated in NPPES Apr 1, 2016

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License D0018019 (MD) Primary

Authorized official

Name Malena Jean-Smith
Title Administrator

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 Mill Street Medical Group LLC?
The NPI for Mill Street Medical Group LLC is 1134508450, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mill Street Medical Group LLC?
NPPES lists Malena Jean-Smith (Administrator) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-01.