Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria M. Mercado, M.D.

Endocrinology, Diabetes & Metabolism Physician in Chula Vista, CA · enumerated 2006 · practices at Centro De Salud De La Comunidad De San Ysidro Inc.

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

National Provider Identifier

1851335723

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Registry record

Entity type Individual (Type 1)

Name Maria M. Mercado

Credential M.D.

Sex Female

Practice address 880 3rd Ave, Chula Vista, CA, 91911

Phone (619) 205-4585

Enumeration date Jun 15, 2006

Last updated in NPPES May 25, 2025

Taxonomy & licenses

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 0430844 (KS) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License MD60287498 (WA) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 202331 (CA) Primary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 2004022179 (MO) 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
207225004	Medicaid	MO	-
200357540A	Medicaid	KS	-
2022404	Medicaid	WA	-

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 Maria Mercado practice?

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

What is the NPI number for Maria Mercado?

The National Provider Identifier (NPI) for Maria Mercado is 1851335723, 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 2025-05-25.