Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Diana Davio, M.D.

Colon & Rectal Surgery Physician in Lancaster, CA · enumerated 2007 · practices at Kaiser Foundation Health Plan Inc.

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

National Provider Identifier

1023217577

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Registry record

Entity type Individual (Type 1)

Name Dr. Diana Davio

Credential M.D.

Sex Female

Practice address 615 W Avenue L, Lancaster, CA, 93534

Phone (661) 723-2866

Enumeration date Jul 15, 2007

Last updated in NPPES Jan 6, 2023

Taxonomy & licenses

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License A107611 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1023217577 active?

Yes, as of the latest NPPES snapshot, NPI 1023217577 is active (record last updated 2023-01-06).

How do I verify Diana Davio's NPI record?

Cross-check NPI 1023217577 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-06.