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

Mrs. Marianna Chavez, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1932981867

Mrs. Marianna Chavez, NP is a Nurse Practitioner in Ontario, California. Qualified in 2023, 3 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in California.

Years since qualifying
3
Licensed in
CA
In the registry since
2023
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

3200 E Guasti Rd Ste 100
Ontario, CA 91761-8661
Phone: (626) 714-8739
Show map & directions

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

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 95026556 (CA)

Record details

NPI number1932981867
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedOctober 16, 2023
Last updated in NPPESMay 15, 2025
Certification dateMay 15, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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