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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. John Francis Mccarthy, D.O.

Psychiatry Physician in Ionia, MI · enumerated 2011.

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

National Provider Identifier

1356619381

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Registry record

Entity type Individual (Type 1)
Name Dr. John Francis Mccarthy
Credential D.O.
Sex Male
Practice address Ionia, MI, 48846
Phone (616) 527-3100
Enumeration date Dec 5, 2011
Last updated in NPPES Dec 5, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 5101006203 (MI) Primary
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.

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Frequently asked questions

Where does John Mccarthy practice?
The practice location on file with NPPES is in Ionia, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Mccarthy?
The National Provider Identifier (NPI) for John Mccarthy is 1356619381, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-05.