Ari Kassardjian, MD

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

A182051 Issued in CA

Practice address

2985 Sycamore Dr
Simi Valley, CA 93065-1201

Phone

(805) 955-6000

NPI assigned

Mar 16, 2020

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

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

Radiation Oncology

Education

University of Southern California Keck School of Medicine, 2021

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• City of Hope Helford Clinical Research Hospital Hospital, Duarte, CA, CCN 050146

Medicare enrollment (NPD)

Enrolled

Interoperability endpoints

• Direct secure messaging: akassardjian101638@cityofhope.direct-ci.com

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.

• Adventist Health Physicians Network

  • Family Medicine Physician
  • Glendale, CA
  • NPI 1083976294
  Medicare reassignment

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

• City of Hope National Medical Center

  • General Acute Care Hospital
  • Duarte, CA
  • NPI 1750358297
  Care Compare affiliation

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

{
    "created_epoch": "1584316800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781827200000",
    "number": "1689200115",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2985 SYCAMORE DR",
            "city": "SIMI VALLEY",
            "state": "CA",
            "postal_code": "930651201",
            "telephone_number": "805-955-6000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2985 SYCAMORE DR",
            "city": "SIMI VALLEY",
            "state": "CA",
            "postal_code": "930651201",
            "telephone_number": "805-955-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KASSARDJIAN",
        "first_name": "ARI",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-16",
        "last_updated": "2026-06-19",
        "certification_date": "2026-06-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CA",
            "license": "A182051",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kamran Shahsavari DDS Inc
• Kanakavalli Suresh Iyer, M.D., Inc.
• Mark M Kang, MD
• Ashmeeta Praful Kapadia, M.D.
• Shayla Fowler Kasel, M.D.
• Katayoun Setareh Dental Corporation
• Katayoun Setareh Shenas, D.D.S., Inc
• Dhanesh S Katbamna, DDS
• Behdod Katebian
• Jill Terry Katell, M.F.T.

• Radiation Oncology Physician in Simi Valley, CA
• Providers in Simi Valley, CA by specialty
• Radiation Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 2026; 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.