NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. David G Alonso, MD

Internal Medicine Physician in Chico, CA · enumerated 2006 · practices at David Alonso, MD Inc.

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

National Provider Identifier

1467403246

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Registry record

Entity type Individual (Type 1)
Name Dr. David G Alonso
Credential MD
Sex Male
Practice address Chico, CA, 95926
Phone (530) 965-9900
Fax (530) 965-9265
Enumeration date May 15, 2006
Last updated in NPPES Jan 5, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 12929 (NH) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A112504 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
1467403246 Medicaid CA -
1235497611 Medicaid CA -
30212766 Medicaid NH -
P00889088 Other CA RR MEDICARE

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

What is the NPI number for David Alonso?
The National Provider Identifier (NPI) for David Alonso is 1467403246, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Alonso practice?
The practice location on file with NPPES is in Chico, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-05.