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Hematology/Oncology

Mazen N. Jizzini, MD

Works at hospitals in Los Angeles, CA · Pasadena, CA · Tarzana, CA · California

Summary

Dr. Mazen N. Jizzini, MD is a hematologist-oncologist at 18133 Ventura Blvd, Suite 300, Tarzana, CA 91356. Phone: (818) 994-0101. Accepts Medicare assignment. NPI 1346702032. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Mazen N. Jizzini, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Mazen N. Jizzini accept Medicare assignment?
Yes. Medicare's clinician data says Mazen N. Jizzini accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Mazen N. Jizzini's NPI number?
1346702032. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mazen N. Jizzini works

Medicare's Facility Affiliation Data lists Mazen N. Jizzini at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Mazen N. Jizzini is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mazen N. Jizzini as a member of this group (CMS data updated October 2, 2026).

  • Cedars-Sinai Medical Care Foundation1,692 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in California →

Other hematologist-oncologists in Tarzana

Clinicians with the same Medicare primary specialty in Tarzana, CA — not a recommendation.

All hematologist-oncologists in Tarzana →

Other clinicians in Cedars-Sinai Medical Care Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1346702032
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians