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PETER MAZANEC M.D.
NPI 1598296105
Anesthesiology in West Hollywood, CA

Active since March 24, 2017PECOS EnrolledAccepts Medicare Assignment
85.71/100
CMS Quality Rating
8700 BEVERLY BLVD, WEST HOLLYWOOD, CA 90048(310) 423-1447 Get Directions Write a Review

NPPES record last updated: October 10, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 10, 2022, Mar 24, 2017 (2 updates tracked since 2017).

About Peter Mazanec M.d. NPPES

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

PETER MAZANEC M.D. (NPI 1598296105) is an individual anesthesiology provider in West Hollywood, California, licensed in California (A161433) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in Oakland, and is a graduate of Georgetown University School Of Medicine (2017).

NPPES Registry Identity

NPI1598296105
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NamePETER MAZANECCredential: M.D.
Location Address8700 BEVERLY BLVDWest Hollywood, CA 90048-1804
Mailing Address1411 E 31st St, Dept. Of SurgeryOakland, CA 94602-1018
Phone(310) 423-1447
Sole ProprietorYes
Medical School CMSGeorgetown University School Of MedicineGraduated 2017
Enumeration DateMarch 24, 2017
Last NPPES UpdateOctober 10, 20222 updates tracked since enumeration
NPPES CertifiedOctober 10, 2022
✔ NPI 1598296105 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A161433
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
8700 BEVERLY BLVD, West Hollywood, CA 90048
Open in Google Maps ↗

Secondary Practice Location 1

Location 11411 E 31st St, Dept. of SurgeryOakland, CA 94602-1018 · Phone (510) 437-4965

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

Peter Mazanec 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.

PECOS PAC ID840692034
PECOS Enrollment IDI20210709002649
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 Peter Mazanec reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Cedars-Sinai Medical Care Foundation
Same address
Anesthesiology
8700 BEVERLY BLVD STE SB-290
Los Angeles, CA 90048
  • Reassigned Medicare billing, California enrollment
  • 2,118 clinicians in this Medicare group
NPI 1043826720 (310) 423-1447

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.

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447
This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.
28 services28 patients
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.
21 services21 patients
Ultrasonic guidance for needle placement 76942
Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.
20 services20 patients
Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
18 services18 patients
Injection of anesthetic agent and/or steroid into lower back and leg nerve (sciatic nerve) 64445
This procedure involves injecting an anesthetic or steroid into the lower back and leg nerve to alleviate pain. The injection helps reduce inflammation and numb the area, providing relief from discomfort. This is a common treatment for conditions such as sciatica and herniated discs.
16 services16 patients
Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
12 services12 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.71/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.67
Promoting Interoperability100
Improvement Activities40
Cost61.47

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.

DR. BERNICE LOUISE COLEMAN PH.D, ACNP-BC
Nurse Practitioner (Acute Care)
8700 BEVERLY BLVD, NORTH TOWER ROOM 6215
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-6178
DR. INGRID LEAH DOMBROWER M.D.
Psychiatry & Neurology (Psychiatry)
8700 BEVERLY BLVD
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-2871
ELAINE WITTERT MSW
Social Worker (Clinical)
8700 BEVERLY BLVD, SUITE AC1002
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-3119
DR. KENAN MOHAMMED NADAR D.O.
Pediatrics
8700 BEVERLY BLVD
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-4451
HAE YOON GRACE CHOUNG MD
Pathology (Anatomic Pathology & Clinical Pathology)
8700 BEVERLY BLVD
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-6623
CASEY DISTASO MD
Emergency Medicine
8700 BEVERLY BLVD
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-8780
CHIARA CASAS NP
Nurse Practitioner (Pediatrics)
8700 BEVERLY BLVD
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-3277
AUSTIN WU MD
Anesthesiology
8700 BEVERLY BLVD
WEST HOLLYWOOD, CA 90048
Los Angeles County (310) 423-5841

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 Peter Mazanec's NPI number?

The NPI number for Peter Mazanec is 1598296105. It was assigned to this individual provider in the NPPES registry on March 24, 2017.

Where is Peter Mazanec located?

Peter Mazanec practices at 8700 Beverly Blvd, West Hollywood, CA 90048. The listed phone number is (310) 423-1447.

What is Peter Mazanec's specialty?

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

Is Peter Mazanec enrolled in Medicare?

Yes. Peter Mazanec 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 Peter Mazanec's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Mazanec reassigns Medicare benefits to Cedars-Sinai Medical Care Foundation (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 Peter Mazanec'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 Peter Mazanec was last updated on October 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.