Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John M Brown III, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Morristown, NJ · enumerated 2005.

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

National Provider Identifier

1164424529

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Registry record

Entity type Individual (Type 1)

Name John M Brown III

Credential MD

Sex Male

Practice address 100 Madison Ave, Mid-Atlantic Surgical Associates, Morristown, NJ, 07960

Phone (973) 971-7300

Fax (973) 984-7019

Enumeration date Aug 15, 2005

Last updated in NPPES Nov 16, 2011

Taxonomy & licenses

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 59578 (NJ) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
5573009	Medicaid	NJ	-

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.

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Frequently asked questions

Is NPI 1164424529 active?

Yes, as of the latest NPPES snapshot, NPI 1164424529 is active (record last updated 2011-11-16).

How do I verify John Brown's NPI record?

Cross-check NPI 1164424529 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 2011-11-16.