Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Charnas, M.D.

Q: What is the NPI number for John Charnas?

The National Provider Identifier (NPI) for John Charnas is 1346298288, a Type 1 (individual) record in the CMS NPPES registry.

Occupational Medicine Physician in Gainesville, FL · enumerated 2006.

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

National Provider Identifier

1346298288

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Registry record

Entity type Individual (Type 1)

Name Dr. John Charnas

Credential M.D.

Sex Male

Practice address 1601 Sw Archer Rd, 11c, Gainesville, FL, 32608

Phone (352) 376-1611

Fax (352) 379-7434

Enumeration date May 4, 2006

Last updated in NPPES Oct 20, 2011

Taxonomy & licenses

2083X0100X Occupational Medicine Physician Allopathic & Osteopathic Physicians · License ME 92738 (FL) Primary

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

What is the NPI number for John Charnas?

The National Provider Identifier (NPI) for John Charnas is 1346298288, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Charnas practice?

The practice location on file with NPPES is in Gainesville, FL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-20.