DR. NAGI ZAKI M.D.
NPI 1548330962
Anesthesiology in Fountain Valley, CA
About Dr. Nagi Zaki M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NAGI ZAKI M.D. (NPI 1548330962) is an individual anesthesiology provider in Fountain Valley, California, licensed in California (A49038) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1985).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Dr. Nagi Zaki 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
3Medicare enrollment records show Nagi Zaki reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Laguna Hills, CA 92653
- Reassigned Medicare billing, California enrollment
- 833 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 76 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 6
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 20
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 Nagi Zaki's NPI number?
The NPI number for Nagi Zaki is 1548330962. It was assigned to this individual provider in the NPPES registry on November 9, 2006.
Where is Nagi Zaki located?
Nagi Zaki practices at 9920 Talbert Ave, Fountain Valley, CA 92708. The listed phone number is (714) 378-7000.
What is Nagi Zaki's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Nagi Zaki enrolled in Medicare?
Yes. Nagi Zaki 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 Nagi Zaki's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nagi Zaki reassigns Medicare benefits to 3 organizations: Cep America - Anesthesia PC (Laguna Hills, CA), Socal Anesthesia Solutions, Inc (Los Angeles, CA) and Allied Anesthesia Medical Group Inc (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 Nagi Zaki'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 Nagi Zaki was last updated on June 18, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.