MR. RAYMOND TRAN NGUYEN NP
NPI 1871136929
Nurse Practitioner - Psychiatric/Mental Health in Ontario, CA
About Mr. Raymond Tran Nguyen Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. RAYMOND TRAN NGUYEN NP (NPI 1871136929) is an individual psychiatric/mental health provider in Ontario, California, licensed in California (95013061) and active in the NPI registry since October 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mr. Raymond Tran Nguyen 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.
Medicare Billing Reassignments
3Medicare enrollment records show Raymond Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Ontario, CA 91764
- Reassigned Medicare billing, California enrollment
- 2,584 clinicians in this Medicare group
Duarte, CA 91010
- Reassigned Medicare billing, California enrollment
- 1,335 clinicians in this Medicare group
Folsom, CA 95630
- Reassigned Medicare billing, California enrollment
- 99 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91764 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ONTARIO, CA 91764
ONTARIO, CA 91764
ONTARIO, CA 91764
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 Raymond Nguyen's NPI number?
The NPI number for Raymond Nguyen is 1871136929. It was assigned to this individual provider in the NPPES registry on October 22, 2019.
Where is Raymond Nguyen located?
Raymond Nguyen practices at 4684 Ontario Mills Pkwy Ste 200, Ontario, CA 91764. The listed phone number is (626) 621-3572.
What is Raymond Nguyen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Raymond Nguyen enrolled in Medicare?
Yes. Raymond Nguyen 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.
Which organizations bill Medicare for Raymond Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Raymond Nguyen reassigns Medicare benefits to 3 organizations: Faculty Physicians And Surgeons Of Llusm (Ontario, CA), City Of Hope Medical Foundation (Duarte, CA) and Hisham Soliman MD Inc (Folsom, 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 Raymond Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Raymond Nguyen accept?
Health plans from Cigna HealthCare of Florida, Inc. and Cigna Healthcare list Raymond Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Raymond Nguyen was last updated on August 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mr. Raymond Tran Nguyen, NP · NPI 1871136929
Psychiatric/Mental Health physician in Ontario, California. Individual provider, active in the CMS NPPES registry since October 22, 2019.
## Identity
- **NPI:** 1871136929 (Entity type: Individual)
- **Enumerated:** October 22, 2019
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 95013061 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4684 ONTARIO MILLS PKWY STE 200, Ontario, CA 91764-5151
- **Phone:** (626) 621-3572
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Faculty Physicians And Surgeons Of Llusm (NPI 1962633479, Ontario, CA); City Of Hope Medical Foundation (NPI 1871886366, Duarte, CA); Hisham Soliman MD Inc (NPI 1700199080, Folsom, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** August 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1871136929) · Data from the CMS NPPES public registry.