Derek Susumu Moriyama

Primary specialty

Hospice and Palliative Medicine (Internal Medicine) PhysicianTaxonomy code 207RH0002X

License

A168883 Issued in CA

Practice address

15000 Kensington Park Dr Ste 170
Tustin, CA 92782-1836

Phone

(714) 477-8300

Fax

(714) 477-8301

NPI assigned

May 8, 2016

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

Electronic endpoints 1

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

Internal MedicineAlso: Hospice/Palliative Care

Education

University of California, Irvine, California College of Medicine, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

HMTS IncGroup PAC ID 1951750413, 118 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence at Home With Compassus Hospice Care la County Hospice, Torrance, CA, CCN 051512

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dmoriyama1768040@oc.providencedirect.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.

• HMTS, Inc

  • Urgent Care Clinic/Center
  • Irvine, CA
  • NPI 1326828575
  Medicare reassignment Care Compare group NPD
• Usc Care Medical Group, Inc

  • General Practice Physician
  • Los Angeles, CA
  • NPI 1902846306
  Medicare reassignment NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Baldwin Park, CA
  • NPI 1770515280
  Medicare reassignment
• Usc Care Medical Group, Inc

  • Durable Medical Equipment & Medical Supplies
  • Pasadena, CA
  • NPI 1427937390
  NPD
• Hoag Hospital

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1689864365
  NPD (past)

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

• Providence Trinitycare Hospice

  • Community Based Hospice Care Agency
  • Torrance, CA
  • NPI 1245383165
  Care Compare affiliation

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

{
    "created_epoch": "1462665600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780012800000",
    "number": "1851747901",
    "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": "323-442-5100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15000 KENSINGTON PARK DR STE 170",
            "city": "TUSTIN",
            "state": "CA",
            "postal_code": "927821836",
            "telephone_number": "714-477-8300",
            "fax_number": "714-477-8301"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1520 San Pablo St Ste 1000",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "900335312",
            "country_code": "US",
            "telephone_number": "323-442-5100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MORIYAMA",
        "first_name": "DEREK",
        "middle_name": "SUSUMU",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-05-08",
        "last_updated": "2026-05-29",
        "certification_date": "2026-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0002X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hospice and Palliative Medicine",
            "state": "CA",
            "license": "A168883",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "derek.moriyama@direct.usc.edu",
            "affiliation": "Y",
            "affiliationName": "USC CARE MEDICAL GROUP, INC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1520 San Pablo St Ste 1000",
            "city": "Los Angeles",
            "state": "CA",
            "country_code": "US",
            "postal_code": "900335312",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Amanda Morga, LMFT
• Morgan Slade Psychoanalyst, Professional Corporation
• Eiran Lindsay Morgen
• Travis James Morisoli
• Ryo Morita
• James P Morley, M.D.
• Michael McKim Morrison, M.A.
• Negar Mosallanejad, OD
• Tiffany Mosqueda
• Majid Mosslehi, D.M.D.

• Hospice and Palliative Medicine (Internal Medicine) Physician in Tustin, CA
• Providers in Tustin, CA by specialty
• Hospice and Palliative Medicine (Internal Medicine) 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.