Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LI-YUN MA PMHNP-BC
NPI 1205783784
Nurse Practitioner - Psychiatric/Mental Health in Ontario, CA

Active since March 12, 2026
2295 S VINEYARD AVE, ONTARIO, CA 91761(714) 515-9362 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 6, 2026, Mar 12, 2026 (2 updates tracked since 2026).

About Li-yun Ma Pmhnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LI-YUN MA PMHNP-BC (NPI 1205783784) is an individual psychiatric/mental health provider in Ontario, California, licensed in California (95038946) and active in the NPI registry since March 2026.

NPPES Registry Identity

NPI1205783784
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameLI-YUN MACredential: PMHNP-BC
Location Address2295 S VINEYARD AVEOntario, CA 91761-7925
Mailing Address2295 S Vineyard AveOntario, CA 91761-7925
Sole ProprietorNo
Enumeration DateMarch 12, 2026
Last NPPES UpdateAugust 6, 20262 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
NPI 1205783784 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License Licensed in CA · 95038946
2295 S VINEYARD AVE, Ontario, CA 91761

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.

Pediatrics
2295 S VINEYARD AVE, MOB A
ONTARIO, CA 91761
Pharmacist
2295 S VINEYARD AVE
ONTARIO, CA 91761
Pharmacist
2295 S VINEYARD AVE
ONTARIO, CA 91761
Pharmacist
2295 S VINEYARD AVE
ONTARIO, CA 91761
Pharmacist
2295 S VINEYARD AVE
ONTARIO, CA 91761
Pharmacist
2295 S VINEYARD AVE
ONTARIO, CA 91761
Nurse Practitioner (Family)
2295 S VINEYARD AVE
ONTARIO, CA 91761
Dietitian, Registered
2295 S VINEYARD AVE
ONTARIO, CA 91761

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 Li-yun Ma's NPI number?

The NPI number for Li-yun Ma is 1205783784. It was assigned to this individual provider in the NPPES registry on March 12, 2026.

Where is Li-yun Ma located?

Li-yun Ma practices at 2295 S Vineyard Ave, Ontario, CA 91761. The listed phone number is (714) 515-9362.

What is Li-yun Ma's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

When was this NPI record last updated?

The NPPES record for Li-yun Ma was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.