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

Mr. Ariel Martinez, MD

Family Medicine Physician in Watsonville, CA · enumerated 2006.

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

National Provider Identifier

1831262880

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Ariel Martinez

Credential MD

Sex Male

Practice address Watsonville, CA, 95076

Phone (831) 786-9250

Fax (831) 786-9252

Enumeration date Nov 16, 2006

Last updated in NPPES Dec 18, 2012

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A65977 (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
3380234	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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Ariel Martinez's NPI record?

Cross-check NPI 1831262880 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1831262880 active?

Yes, as of the latest NPPES snapshot, NPI 1831262880 is active (record last updated 2012-12-18).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-18.