Rejan C. McCaskill, M.D., F.A.C.P.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A78084 Issued in CA

Practice address

320 Superior Ave Ste 330
Newport Beach, CA 92663-2772

Phone

(949) 791-2000

Fax

(949) 791-2001

NPI assigned

Nov 29, 2006

Last updated

Sep 3, 2025By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

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 Medicine

Education

University of California, Irvine, California College of Medicine, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hoag Home Health Home health agency, Newport Beach, CA, CCN 557412
• Hoag Memorial Hospital Presbyterian Hospital, Newport Beach, CA, CCN 050224

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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

• Rejan McCaskill MD Inc

  • Internal Medicine Physician
  • Newport Beach, CA
  • NPI 1376152314
  Medicare reassignment NPD Authorized official
• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  NPD (past)

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

• Hoag Home Health LLC

  • Home Health Agency
  • Newport Beach, CA
  • NPI 1174192892
  Care Compare affiliation
• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  Care Compare affiliation

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

{
    "created_epoch": "1164758400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756857600000",
    "number": "1790852606",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1855",
            "city": "SUISUN CITY",
            "state": "CA",
            "postal_code": "945854855",
            "telephone_number": "657-241-3600",
            "fax_number": "657-241-7708"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "320 SUPERIOR AVE STE 330",
            "city": "NEWPORT BEACH",
            "state": "CA",
            "postal_code": "926632772",
            "telephone_number": "949-791-2000",
            "fax_number": "949-791-2001"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCCASKILL",
        "first_name": "REJAN",
        "middle_name": "C.",
        "credential": "M.D., F.A.C.P.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-11-29",
        "last_updated": "2025-09-03",
        "certification_date": "2025-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A78084",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "CB355668",
            "state": "CA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "rejan.mccaskillmdfacp.p101@direct.nautilus.nextgenshare.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "320 Superior Ave Ste 330",
            "city": "Newport Beach",
            "state": "CA",
            "country_code": "US",
            "postal_code": "926632772",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Camellia Mazhar
• Annette McAuley, RN
• Alexis Marie McBrayer
• Gary S McCarter, DPM
• Anna McCarthy, PH.D.
• Heather McClain
• Bruce Howard McClaire, D.D.S.
• Kim Irene McClaskey
• Lawson Eugene McClung, M.D.
• Lillian McColloum

• Internal Medicine Physician in Newport Beach, CA
• Providers in Newport Beach, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 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.