Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catherine F Mathis, M.D.

Obstetrics & Gynecology Physician in Manteca, CA · enumerated 2006.

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

National Provider Identifier

1457423279

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Registry record

Entity type Individual (Type 1)

Name Dr. Catherine F Mathis

Credential M.D.

Sex Female

Practice address 1234 E. North St, Suite 102, Manteca, CA, 95336

Phone (209) 824-2202

Fax (209) 824-2205

Enumeration date Nov 15, 2006

Last updated in NPPES Oct 28, 2008

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License A96553 (CA) Primary

174400000X Specialist Other Service Providers · License A96553 (CA) Secondary

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
1386636165	Other	CA	GROUP NPI
00A965530	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

Where does Catherine Mathis practice?

The practice location on file with NPPES is in Manteca, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Catherine Mathis?

The National Provider Identifier (NPI) for Catherine Mathis is 1457423279, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-28.