Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John J Messina, M.D

Specialist in Elmwood Park, NJ · enumerated 2006.

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

National Provider Identifier

1922186311

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Registry record

Entity type Individual (Type 1)

Name John J Messina

Credential M.D

Sex Male

Practice address 1 Broadway, Suite 203, Elmwood Park, NJ, 07407

Phone (972) 569-6250

Fax (973) 569-6270

Enumeration date Nov 1, 2006

Last updated in NPPES May 2, 2017

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 25MA05366500 (NJ) Primary

2080P0202X Pediatric Cardiology Physician Allopathic & Osteopathic Physicians · License 25MA05366500 (NJ) Secondary

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
5152101	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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is John Messina?

John Messina is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-02.