Mazen Nizar Jizzini, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

A177889 Issued in CA

Practice address

18133 Ventura Blvd Ste 300
Tarzana, CA 91356-3645

Phone

(818) 981-3818

NPI assigned

Apr 2, 2019

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Hematology/OncologyAlso: Internal Medicine

Education

Other, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Cedars-Sinai Medical Care FoundationGroup PAC ID 0941106645, 1,684 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence Cedars Sinai Tarzana Medical Center Hospital, Tarzana, CA, CCN 050761
• Cedars-Sinai Medical Center Hospital, Los Angeles, CA, CCN 050625
• Huntington Hospital Hospital, Pasadena, CA, CCN 050438
• Los Angeles General Medical Center Hospital, Los Angeles, CA, CCN 050373

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: mjizzini526683@direct.cshs.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Cedars-Sinai Medical Care Foundation

  • Specialist
  • Los Angeles, CA
  • NPI 1316984388
  Medicare reassignment Care Compare group NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Cedars-Sinai Medical Center

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1639172372
  Care Compare affiliation
• Cedars-Sinai Medical Center

  • General Acute Care Hospital
  • West Hollywood, CA
  • NPI 1891940326
  Care Compare affiliation
• County of Los Angeles

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1598773715
  Care Compare affiliation
• Pasadena Hospital Association, LTD

  • General Acute Care Hospital
  • Pasadena, CA
  • NPI 1407828429
  Care Compare affiliation
• Tarzana Medical Center LLC

  • General Acute Care Hospital
  • Tarzana, CA
  • NPI 1821250762
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1554163200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756512000000",
    "number": "1346702032",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "462 GRIDER ST",
            "city": "BUFFALO",
            "state": "NY",
            "postal_code": "142153021",
            "telephone_number": "716-898-4578",
            "fax_number": "898-327-9716"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18133 VENTURA BLVD STE 300",
            "city": "TARZANA",
            "state": "CA",
            "postal_code": "913563645",
            "telephone_number": "818-981-3818"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "462 Grider St",
            "address_purpose": "LOCATION",
            "city": "Buffalo",
            "state": "NY",
            "postal_code": "142153021",
            "country_code": "US",
            "telephone_number": "716-898-4578",
            "fax_number": "898-327-9716",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JIZZINI",
        "first_name": "MAZEN",
        "middle_name": "NIZAR",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-04-02",
        "last_updated": "2025-08-30",
        "certification_date": "2025-08-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "A177889",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NY",
            "license": "390200000X",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jenny Oh, MD, Inc
• Jeremy Schwieger, M.D., a Medical Corporation
• Brenda Jimenez
• Daniel Jimenez
• Lacey Jimenez
• Brittany Joachim
• Jody Levy MD a Professional Corporation
• Joel a. Sach, M.D., Inc.
• Joel a. Sach, M.D., Inc.
• Joel Flores

• Hematology & Oncology Physician in Tarzana, CA
• Providers in Tarzana, CA by specialty
• Hematology & Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.