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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jennifer Leigh Ann Ross, MD, PhD

General Practice Physician in Napa, CA · enumerated 2017.

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

National Provider Identifier

1538693718

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Registry record

Entity type Individual (Type 1)
Name Dr. Jennifer Leigh Ann Ross
Credential MD, PhD
Sex Female
Practice address 1001 Professional Dr, Napa, CA, 94558
Enumeration date Apr 14, 2017
Last updated in NPPES Aug 10, 2026

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License A134506 (CA) Primary
207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 134506 (CA) Secondary
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.

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Frequently asked questions

How do I verify Jennifer Ross's NPI record?
Cross-check NPI 1538693718 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1538693718 active?
Yes, as of the latest NPPES snapshot, NPI 1538693718 is active (record last updated 2026-08-10).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-10.