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Napa Valley Orthopaedic Medical Group, Inc

Orthopaedic Surgery Physician in Napa, CA · enumerated 2006 · authorized official John Diana, President.

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

National Provider Identifier

1710934575

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Registry record

Entity type Organization (Type 2)
Legal business name Napa Valley Orthopaedic Medical Group, Inc
Practice address 3273 Claremont Way, Suite 100, Napa, CA, 94558
Phone (707) 254-7117
Fax (707) 265-6435
Enumeration date May 27, 2006
Last updated in NPPES Jul 7, 2014

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License A87859 (CA) Primary

Authorized official

Name John Diana
Title President
Phone (707) 254-7117

Other identifiers

Identifier Type State Issuer
GR0102820 Medicaid CA -

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-07-07. Verify at npiregistry.cms.hhs.gov.
Where is Napa Valley Orthopaedic Medical Group, Inc located?
The practice location on file with NPPES is in Napa, CA.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-07.