Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christopher William Walker, M.D.

Family Medicine Physician in Travis Air Force Base, CA · enumerated 2005.

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

National Provider Identifier

1851372130

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Registry record

Entity type Individual (Type 1)

Name Dr. Christopher William Walker

Credential M.D.

Sex Male

Practice address David Grant Medical Center, 101 Bodin Circle, Travis Air Force Base, CA, 94535

Phone (707) 423-3735

Enumeration date Nov 14, 2005

Last updated in NPPES Dec 23, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 01054419A (IN) 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.

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Frequently asked questions

How do I verify Christopher Walker's NPI record?

Cross-check NPI 1851372130 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1851372130 active?

Yes, as of the latest NPPES snapshot, NPI 1851372130 is active (record last updated 2021-12-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-23.