KELVIN A NGUYEN M.D.
NPI 1699861146
Anesthesiology in Orange, CA
About Kelvin A Nguyen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KELVIN A NGUYEN M.D. (NPI 1699861146) is an individual anesthesiology provider in Orange, California, licensed in California (G80408) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Kelvin A Nguyen M.d. 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
6Medicare enrollment records show Kelvin Nguyen reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92869
- Reassigned Medicare billing, California enrollment
- 168 clinicians in this Medicare group
Fountain Valley, CA 97208
- Reassigned Medicare billing, California enrollment
- 59 clinicians in this Medicare group
Los Alamitos, CA 90720
- Reassigned Medicare billing, California enrollment
- 63 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 76 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 30 clinicians in this Medicare group
- Reassigned Medicare billing, California enrollment
- 420 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 4
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.
Other Providers at the Same Location NPPES 2
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 Kelvin Nguyen's NPI number?
The NPI number for Kelvin Nguyen is 1699861146. It was assigned to this individual provider in the NPPES registry on October 4, 2006.
Where is Kelvin Nguyen located?
Kelvin Nguyen practices at 2601 E. Chapman Ave, Orange, CA 92869. The listed phone number is (714) 633-0011.
What is Kelvin Nguyen's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Kelvin Nguyen enrolled in Medicare?
Yes. Kelvin 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 Kelvin Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kelvin Nguyen reassigns Medicare benefits to 6 organizations: Orange Coast Anesthesia Inc (Orange, CA), Premiercare Anesthesia Fountain Valley Inc (Fountain Valley, CA), Talbert Anesthesia Group Incorporated (Los Alamitos, CA), Socal Anesthesia Solutions, Inc (Los Angeles, CA), Aria Anesthesia Group Inc (Apple Valley, CA) and 1 more organization, listed in the Medicare section above. 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 Kelvin Nguyen'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 Kelvin Nguyen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Kelvin A Nguyen, M.D. · NPI 1699861146
Anesthesiology physician in Orange, California. Individual provider, active in the CMS NPPES registry since October 4, 2006.
## Identity
- **NPI:** 1699861146 (Entity type: Individual)
- **Enumerated:** October 4, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** G80408 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2601 E. CHAPMAN AVE, Orange, CA 92869-3296
- **Phone:** (714) 633-0011
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Orange Coast Anesthesia Inc (NPI 1508138256, Orange, CA); Premiercare Anesthesia Fountain Valley Inc (NPI 1831536531, Fountain Valley, CA); Talbert Anesthesia Group Incorporated (NPI 1144626714, Los Alamitos, CA); Socal Anesthesia Solutions, Inc (NPI 1407596901, Los Angeles, CA); Aria Anesthesia Group Inc (NPI 1407124712, Apple Valley, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1991
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN G09541 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1699861146) · Data from the CMS NPPES public registry.