Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brian Kessler, DO

Family Medicine Physician in Hagerstown, MD · enumerated 2006 · practices at Medical Practices of Antietam LLC.

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

National Provider Identifier

1336247667

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Registry record

Entity type Individual (Type 1)

Name Brian Kessler

Credential DO

Sex Male

Practice address 11110 Medical Campus Rd Ste 200, Hagerstown, MD, 21742

Phone (301) 714-4400

Fax (301) 714-4424

Enumeration date Sep 20, 2006

Last updated in NPPES Jun 18, 2026

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License H0105192 (MD) Primary

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 34007698K (OH) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

Is NPI 1336247667 active?

Yes, as of the latest NPPES snapshot, NPI 1336247667 is active (record last updated 2026-06-18).

How do I verify Brian Kessler's NPI record?

Cross-check NPI 1336247667 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-18.