Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Maria M. Mercado, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1851335723

Maria M. Mercado, MD is an Internal Medicine in Chula Vista, California. Qualified in 1995, 31 years ago. Accepts Medicare assignment. Licensed in California, Kansas, Missouri and Washington.

Years since qualifying
31
Licensed in
CA, KS, MO, WA
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

880 3rd Ave
Chula Vista, CA 91911-1305
Phone: (619) 205-4585
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 202331 (CA)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 0430844 (KS)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence MD60287498 (WA)
Endocrinology, Diabetes & Metabolism Physician Taxonomy 207RE0101X · Licence 2004022179 (MO)

Record details

NPI number1851335723
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 15, 2006
Last updated in NPPESMay 25, 2025
Certification dateMay 25, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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