Hyun Don Yun, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

A172166 Issued in CA

Practice address

4950 Barranca Pkwy Ste 210
Irvine, CA 92604-8648

Phone

(949) 414-9337

Fax

(949) 402-0100

NPI assigned

May 7, 2009

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Other identifiers 3

Medicare fee-for-service enrollment

Enrolled in IL, CA, WA3 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 3

Specialty

HematologyAlso: Medical Oncology

Education

Other, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Trinity Medical CenterGroup PAC ID 2264337518, 97 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Trinity Rock Island Hospital, Rock Island, IL, CCN 140280

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: hyun1031759@direct.unitypoint.org
• Direct secure messaging: hyun247634@direct.phs.org
• Direct secure messaging: hyun154316@direct.rush.rush-health.com
• Direct secure messaging: hyun962040@direct.froedtert.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.

• Trinity Medical Center

  • Emergency Medicine Physician
  • Rock Island, IL
  • NPI 1568414134

  Multi-Specialty

  Medicare reassignment Care Compare group NPD
• Compassionate Cancer Care Medical Group, Inc.

  • Specialist
  • Fountain Valley, CA
  • NPI 1548248032

  Multi-Specialty

  Medicare reassignment NPD
• Jefferson County Public Hospital District No 2

  • Critical Access Hospital
  • Port Townsend, WA
  • NPI 1356492953

  Multi-Specialty

  Medicare reassignment NPD
• Rush University Medical Group

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1093819542

  Multi-Specialty

  Medicare reassignment NPD
• Hyun Don Yun M.D. PC

  • Internal Medicine Physician
  • Irvine, CA
  • NPI 1528993151
  NPD Authorized official
• Jefferson County Public Hospital District No 2

  • Rural Health Clinic/Center
  • Port Townsend, WA
  • NPI 1952353369

  Multi-Specialty

  NPD
• Morris Hospital

  • Health Service Clinic/Center
  • Morris, IL
  • NPI 1376658658

  Multi-Specialty

  NPD
• Morris Hospital

  • General Practice Physician
  • Morris, IL
  • NPI 1558466268

  Multi-Specialty

  NPD
• St Luke'S Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD
• Lima Memorial Joint Operating Company

  • General Acute Care Hospital
  • Lima, OH
  • NPI 1336144732

  Multi-Specialty

  NPD (past)

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

• Trinity Medical Center

  • General Acute Care Hospital
  • Rock Island, IL
  • NPI 1316047632
  Care Compare affiliation

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

{
    "created_epoch": "1241654400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787270400000",
    "number": "1508090473",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4950 BARRANCA PKWY STE 210",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926048648",
            "telephone_number": "949-414-9337",
            "fax_number": "949-402-0100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4950 BARRANCA PKWY STE 210",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926048648",
            "telephone_number": "949-414-9337",
            "fax_number": "949-402-0100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YUN",
        "first_name": "HYUN DON",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-05-07",
        "last_updated": "2026-08-21",
        "certification_date": "2026-08-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "CA",
            "license": "A172166",
            "primary": false
        },
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "CA",
            "license": "A172166",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A172166",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "A172166",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "CA477608",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "CA477679",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "CB376043",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• George Yuen, M.D.
• Yukeli Pharmacy Group Inc
• Yoon Gyung Yum
• Ma Theresa Laxamana Yumul, AD
• Yun Song D.D.S Professional Dental Corporation
• Jonathan Gooryul Yun
• Steve C Yun, M.D.
• Ameena Yusuf
• John Andrew Yzaguirre, PH.D.
• Brooke Elizabeth Zabrocki

• Hematology & Oncology Physician in Irvine, CA
• Providers in Irvine, 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 21, 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.