Marianna Chavez, NP
NPI 1932981867 · Psychiatric/Mental Health Nurse Practitioner · Ontario, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marianna Chavez, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Ontario, CA (NPI 1932981867).
Provider details
- NPI number
- 1932981867
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95026556 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-10-16
- Last updated
- 2025-05-15
- Certified
- 2025-05-15
Frequently asked questions
- What is Marianna Chavez's NPI number?
- Marianna Chavez's National Provider Identifier (NPI) is 1932981867, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianna Chavez's specialty?
- Marianna Chavez is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marianna Chavez located?
- Marianna Chavez's practice location on file with NPPES is 3200 E Guasti Rd Ste 100, Ontario, CA 91761-8661.
- What is Marianna Chavez's phone number?
- The practice phone number listed in the NPPES registry for Marianna Chavez is (626) 714-8739.
- Does Marianna Chavez accept Medicare?
- Marianna Chavez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marianna Chavez's NPI active?
- Yes — Marianna Chavez's NPI (1932981867) is active in the NPPES registry as of the last update on 2025-05-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.