Aaron Joseph Ahearn, MD-PHD

Primary specialty

Transplant Surgery PhysicianTaxonomy code 204F00000X

License

A103008 Issued in CA

Practice address

500 Superior Ave
Newport Beach, CA 92663-3657

Phone

(949) 764-5793

Fax

(949) 764-5792

NPI assigned

Apr 25, 2008

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

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in CA, NV2 enrollments

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 2

Specialty

General Surgery

Education

University of Maryland School of Medicine, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Usc Care Medical Group IncGroup PAC ID 0446157747, 1,378 clinicians

Hoag ClinicGroup PAC ID 3274872064, 447 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Keck Hospital of Usc Hospital, Los Angeles, CA, CCN 050696
• Usc Kenneth Norris Jr Cancer Hospital Hospital, Los Angeles, CA, CCN 050660

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

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.

• Usc Care Medical Group, Inc

  • General Practice Physician
  • Los Angeles, CA
  • NPI 1902846306

  NV, Surgery

  Medicare reassignment Care Compare group NPD
• Hoag Clinic

  • Primary Care Clinic/Center
  • Newport Beach, CA
  • NPI 1942799523
  Care Compare group
• Usc Care Medical Group, Inc

  dba Fair Oaks Clinic

  • Durable Medical Equipment & Medical Supplies
  • Pasadena, CA
  • NPI 1427937390
  NPD
• Keck Medical Center of Usc

  dba Keck Hospital of USC

  • Rehabilitation Hospital Unit
  • Los Angeles, CA
  • NPI 1750988770
  NPD (past)

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

• Keck Medical Center of Usc

  dba Keck Hospital of USC

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1013514199
  Care Compare affiliation
• Keck Medical Center of Usc

  dba USC Kenneth Norris Jr. Hospital

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1417554528
  Care Compare affiliation

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

{
    "created_epoch": "1209081600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780012800000",
    "number": "1588839997",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 31309",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900310309",
            "telephone_number": "323-442-5908"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 SUPERIOR AVE",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926633657",
            "telephone_number": "949-764-5793",
            "fax_number": "949-764-5792"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AHEARN",
        "first_name": "AARON",
        "middle_name": "JOSEPH",
        "name_prefix": "Dr.",
        "credential": "MD-PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-04-25",
        "last_updated": "2026-05-29",
        "certification_date": "2026-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "204F00000X",
            "taxonomy_group": "",
            "desc": "Transplant Surgery",
            "state": "CA",
            "license": "A103008",
            "primary": true
        },
        {
            "code": "204F00000X",
            "taxonomy_group": "",
            "desc": "Transplant Surgery",
            "state": "MA",
            "license": "262959",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aaron.ahearn@direct.usc.edu",
            "affiliation": "Y",
            "affiliationName": "USC CARE MEDICAL GROUP, INC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1516 San Pablo St Fl 2",
            "city": "Los Angeles",
            "state": "CA",
            "country_code": "US",
            "postal_code": "900335313",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Yuritzi Michelle Aguilera
• Kiersten Kala Aguirre
• Ariana Ahani
• Ahcs Mission, LLC (Mission Plaza Pharmacy 2)
• Ahcs Mission, LLC (Mission Plaza Pharmacy 2)
• Ahmad Beach Body MD Inc
• Ahmad Beach Skin MD Inc
• Ali Ahmad, M.D.
• Jibran A Ahmed
• Sabah Ahmed, MD

• Transplant Surgery Physician in Newport Beach, CA
• Providers in Newport Beach, CA by specialty
• Transplant Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 29, 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.