MRS. MARIANNA CHAVEZ NP
NPI 1932981867
Nurse Practitioner - Psychiatric/Mental Health in Ontario, CA
About Mrs. Marianna Chavez Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MARIANNA CHAVEZ NP (NPI 1932981867) is an individual psychiatric/mental health provider in Ontario, California, licensed in California (95026556) and active in the NPI registry since October 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mrs. Marianna Chavez Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91761 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marianna Chavez's NPI number?
The NPI number for Marianna Chavez is 1932981867. It was assigned to this individual provider in the NPPES registry on October 16, 2023.
Where is Marianna Chavez located?
Marianna Chavez practices at 3200 E Guasti Rd Ste 100, Ontario, CA 91761. The listed phone number is (626) 714-8739.
What is Marianna Chavez's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Marianna Chavez enrolled in Medicare?
Yes. Marianna Chavez is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Marianna Chavez was last updated on May 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mrs. Marianna Chavez, NP · NPI 1932981867
Psychiatric/Mental Health physician in Ontario, California. Individual provider, active in the CMS NPPES registry since October 16, 2023.
## Identity
- **NPI:** 1932981867 (Entity type: Individual)
- **Enumerated:** October 16, 2023
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 95026556 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3200 E GUASTI RD STE 100, Ontario, CA 91761-8661
- **Phone:** (626) 714-8739
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** May 15, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1932981867) · Data from the CMS NPPES public registry.