Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Joseph Bonacorsi, M.D.

Specialist in Bridgeton, MO · enumerated 2006.

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

National Provider Identifier

1265541395

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Registry record

Entity type Individual (Type 1)

Name Dr. John Joseph Bonacorsi

Credential M.D.

Sex Male

Practice address 12277 De Paul Dr, Ste. 502s, Bridgeton, MO, 63044

Phone (314) 291-5307

Fax (314) 291-0838

Enumeration date Aug 30, 2006

Last updated in NPPES Sep 14, 2011

Taxonomy & licenses

174400000X Specialist Other Service Providers · License R5611 (MO) 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
200165504	Medicaid	MO	-
001013172	Other	MO	PTAN

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 Bonacorsi?

John Bonacorsi 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 2011-09-14.