Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John B Bosetti, M.D.
Ophthalmology Physician in Napa, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023082393
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Registry record
Entity type Individual (Type 1)
Name John B Bosetti
Credential M.D.
Sex Male
Practice address 800 Trancas St, Suite A, Napa, CA, 94558
Phone (707) 255-6212
Fax (707) 255-6290
Enumeration date Feb 14, 2006
Last updated in NPPES Feb 1, 2008
Taxonomy & licenses
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License G63507 (CA) 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.
Frequently asked questions
Where does John Bosetti practice?
The practice location on file with NPPES is in Napa, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Bosetti?
The National Provider Identifier (NPI) for John Bosetti is 1023082393, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-01.