EDWARD ANTRANIK MEZIAN MD
NPI 1144970351
Anesthesiology in Los Angeles, CA
About Edward Antranik Mezian Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EDWARD ANTRANIK MEZIAN MD (NPI 1144970351) is an individual anesthesiology provider in Los Angeles, California, licensed in California (A189286) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and is a graduate of Other (2022).
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)
Edward Antranik Mezian Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Edward Mezian reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 295 clinicians in this Medicare group
West Hills, CA 91307
- Reassigned Medicare billing, California enrollment
- 52 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.
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.
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
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 Edward Mezian's NPI number?
The NPI number for Edward Mezian is 1144970351. It was assigned to this individual provider in the NPPES registry on March 29, 2022.
Where is Edward Mezian located?
Edward Mezian practices at 757 Westwood Plz Ste 3325, Los Angeles, CA 90095. The listed phone number is (310) 267-8655.
What is Edward Mezian's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Edward Mezian enrolled in Medicare?
Yes. Edward Mezian is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Edward Mezian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Edward Mezian reassigns Medicare benefits to 2 organizations: Regents Of The University Of California (Los Angeles, CA) and West Hills Anesthesia And Perioperative Physicians (West Hills, 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 Edward Mezian'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 Edward Mezian was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 46 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.
# Edward Antranik Mezian, MD · NPI 1144970351
Anesthesiology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 29, 2022.
## Identity
- **NPI:** 1144970351 (Entity type: Individual)
- **Enumerated:** March 29, 2022
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A189286 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 757 WESTWOOD PLZ STE 3325, Los Angeles, CA 90095-7419
- **Phone:** (310) 267-8655
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1326096165, Los Angeles, CA); West Hills Anesthesia And Perioperative Physicians (NPI 1881061802, West Hills, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** September 9, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1144970351) · Data from the CMS NPPES public registry.