ANN MY HUYNH
NPI 1699540880
Nurse Practitioner - Psychiatric/Mental Health in Rancho Cucamonga, CA
About Ann My Huynh NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANN MY HUYNH (NPI 1699540880) is an individual psychiatric/mental health provider in Rancho Cucamonga, California, licensed in California (95020109) and active in the NPI registry since November 2023. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ann My Huynh is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Ann Huynh reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rancho Cucamonga, CA 91730
- Reassigned Medicare billing, California enrollment
- 194 clinicians in this Medicare group
Riverside, CA 92506
- Reassigned Medicare billing, California enrollment
- 40 clinicians in this Medicare group
Los Angeles, CA 90036
- Reassigned Medicare billing, California enrollment
- 8 clinicians in this Medicare group
San Jose, CA 95113
- Reassigned Medicare billing, California enrollment
- 3,139 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91739 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.
RANCHO CUCAMONGA, CA 91739
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 Ann Huynh's NPI number?
The NPI number for Ann Huynh is 1699540880. It was assigned to this individual provider in the NPPES registry on November 17, 2023.
Where is Ann Huynh located?
Ann Huynh practices at 9500 Etiwanda Ave, Rancho Cucamonga, CA 91739. The listed phone number is (909) 708-8371.
What is Ann Huynh's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Ann Huynh enrolled in Medicare?
Yes. Ann Huynh is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ann Huynh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Huynh reassigns Medicare benefits to 4 organizations: Inland Psychiatric Medical Group, Inc (Rancho Cucamonga, CA), Nebula Health, LLC (Riverside, CA), Holistic Healthcare Services (Los Angeles, CA) and Grow Healthcare Group PC (San Jose, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ann Huynh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Ann Huynh was last updated on November 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# Ann My Huynh · NPI 1699540880
Psychiatric/Mental Health physician in Rancho Cucamonga, California. Individual provider, active in the CMS NPPES registry since November 17, 2023.
## Identity
- **NPI:** 1699540880 (Entity type: Individual)
- **Enumerated:** November 17, 2023
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 95020109 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9500 ETIWANDA AVE, Rancho Cucamonga, CA 91739-9662
- **Phone:** (909) 708-8371
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Inland Psychiatric Medical Group, Inc (NPI 1265588909, Rancho Cucamonga, CA); Nebula Health, LLC (NPI 1194479501, Riverside, CA); Holistic Healthcare Services (NPI 1477327641, Los Angeles, CA); Grow Healthcare Group PC (NPI 1154994846, San Jose, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 20, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1699540880) · Data from the CMS NPPES public registry.