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

Francisco Marquez, M.D.

Internal Medicine Physician in San Marcos, CA · enumerated 2008.

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

National Provider Identifier

1316190747

Verified

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Registry record

Entity type Individual (Type 1)

Name Francisco Marquez

Credential M.D.

Sex Male

Practice address San Marcos, CA, 92078

Phone (760) 510-4313

Enumeration date Oct 29, 2008

Last updated in NPPES Oct 16, 2021

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 A113347 (CA) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 125053806 (IL) Secondary

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

Where does Francisco Marquez practice?

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

What is the NPI number for Francisco Marquez?

The National Provider Identifier (NPI) for Francisco Marquez is 1316190747, 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 2021-10-16.