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ATA MAZAHERI MD INC.
NPI 1134430606
Surgery in Glendale, CA

Active since June 29, 2010
1560 E CHEVY CHASE DR, SUITE #450, GLENDALE, CA 91206(818) 246-3300(818) 246-3305 Get Directions Write a Review

NPPES record last updated: June 29, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ata Mazaheri Md Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ATA MAZAHERI MD INC. (NPI 1134430606) is a healthcare organization registered as a surgery in Glendale, California and active in the NPI registry since June 2010. The organization lists Ata Mazaheri, President, as its authorized official.

NPPES Registry Identity

NPI1134430606
Entity TypeOrganization
Primary Taxonomy208600000X
Legal Business NameATA MAZAHERI MD INC.
Location Address1560 E CHEVY CHASE DR, SUITE #450Glendale, CA 91206-4197
Mailing Address1560 E. Chevy Chase Drive, Suite #450Glendale, CA 91206 · (818) 246-3300 · Fax (818) 246-3305
Phone(818) 246-3300
Fax(818) 246-3305
Organization SubpartNo
Authorized OfficialAta MazaheriPresident · (818) 246-3300
Enumeration DateJune 29, 2010
✔ NPI 1134430606 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in CA · A79930
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
1560 E CHEVY CHASE DR, Glendale, CA 91206
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ata Mazaheri Md Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20141215002123Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Ata Mazaheri MD Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Ata Mazaheri, MD
General Surgery
NPI 1164467239
1560 E CHEVY CHASE DR SUITE 450
Glendale, CA 91206
(818) 246-3300
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Ata Mazaheri MD Inc.'s NPI number?

The NPI number for Ata Mazaheri MD Inc. is 1134430606. It was assigned to this organization in the NPPES registry on June 29, 2010.

Where is Ata Mazaheri MD Inc. located?

Ata Mazaheri MD Inc. is located at 1560 E Chevy Chase Dr Suite #450, Glendale, CA 91206. The listed phone number is (818) 246-3300.

What is Ata Mazaheri MD Inc.'s specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Ata Mazaheri MD Inc. enrolled in Medicare?

Yes. Ata Mazaheri MD Inc. is registered in the Medicare PECOS enrollment system.

When is Ata Mazaheri MD Inc.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Ata Mazaheri MD Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Surgery) reassigns their Medicare billing to Ata Mazaheri MD Inc.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Ata Mazaheri MD Inc. was last updated on June 29, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.