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MAZIAR MOHSEN NOURIAN
NPI 1275196305
Anesthesiology in Los Angeles, CA

Active since April 15, 2019PECOS EnrolledAccepts Medicare Assignment
757 WESTWOOD PLZ STE 3325, LOS ANGELES, CA 90095(310) 267-8626(310) 267-8679 Get Directions Write a Review

NPPES record last updated: September 3, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2024, Apr 15, 2019 (2 updates tracked since 2019).

About Maziar Mohsen Nourian NPPES

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

MAZIAR MOHSEN NOURIAN (NPI 1275196305) is an individual anesthesiology provider in Los Angeles, California, licensed in California (A189808) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and is a graduate of University Of Utah School Of Medicine (2019).

NPPES Registry Identity

NPI1275196305
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMAZIAR MOHSEN NOURIAN
Location Address757 WESTWOOD PLZ STE 3325Los Angeles, CA 90095-0001
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Phone(310) 267-8626
Fax(310) 267-8679
Sole ProprietorNo
Medical School CMSUniversity Of Utah School Of MedicineGraduated 2019
Enumeration DateApril 15, 2019
Last NPPES UpdateSeptember 3, 20242 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2024
✔ NPI 1275196305 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A189808
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
757 WESTWOOD PLZ STE 3325, Los Angeles, CA 90095
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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

Maziar Mohsen Nourian 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.

PECOS PAC ID3476099342
PECOS Enrollment IDI20240726003631
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Maziar Nourian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Regents Of The University Of California
Same address
Anesthesiology
757 WESTWOOD PLZ
Los Angeles, CA 90095
  • Reassigned Medicare billing, California enrollment
  • 295 clinicians in this Medicare group
NPI 1326096165 (310) 825-9111

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 2

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.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
15 services15 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
11 services11 patients

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.

MARIYA SVILIK MD
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-8626
DR. BIJAN NAVIDI M.D.
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-8626
DR. FREDERICK CONRAD LI M.D.
Anesthesiology (Pain Medicine)
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 794-4494
LEO LUAN LI MD
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-6629
ANDREW THOMAS SCALES DO
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-8626
DR. SO HEE LEE DNAP
Nurse Anesthetist, Certified Registered
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 825-0867
SHELLY ANDERSON CRNA
Nurse Anesthetist, Certified Registered
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (331) 026-7389
DR. SUNGSOO KIM MD, PHD
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-8626

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 Maziar Nourian's NPI number?

The NPI number for Maziar Nourian is 1275196305. It was assigned to this individual provider in the NPPES registry on April 15, 2019.

Where is Maziar Nourian located?

Maziar Nourian practices at 757 Westwood Plz Ste 3325, Los Angeles, CA 90095. The listed phone number is (310) 267-8626.

What is Maziar Nourian's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Maziar Nourian enrolled in Medicare?

Yes. Maziar Nourian 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 organization bills Medicare for Maziar Nourian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maziar Nourian reassigns Medicare benefits to Regents Of The University Of California (Los Angeles, CA). The 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 Maziar Nourian'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 Maziar Nourian was last updated on September 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.