Ian Tsun

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

A188842 Issued in CA

Practice address

10900 Euclid Ave
Cleveland, OH 44106-1712

Phone

(111) 111-1111

NPI assigned

Jun 15, 2021

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

Emergency Medicine

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Emergency Physicians Associates San Jose PCGroup PAC ID 8921344292, 131 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Santa Clara Valley Medical Center Hospital, San Jose, CA, CCN 050038

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: itsun235228@santaclaravalley.direct-ci.net

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.

• Emergency Physicians Associates San Jose PC

  • Emergency Medicine Physician
  • San Jose, CA
  • NPI 1306311576
  Medicare reassignment Care Compare group NPD
• Team Physicians of California Medical Group Inc

  • Emergency Medicine Physician
  • Delano, CA
  • NPI 1447288345
  Medicare reassignment NPD

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

• County of Santa Clara

  • General Acute Care Hospital
  • San Jose, CA
  • NPI 1063406551
  Care Compare affiliation

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

{
    "created_epoch": "1623715200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751932800000",
    "number": "1083282016",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10900 EUCLID AVE",
            "city": "CLEVELAND",
            "state": "OH",
            "postal_code": "441061712"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10900 EUCLID AVE",
            "city": "CLEVELAND",
            "state": "OH",
            "postal_code": "441061712",
            "telephone_number": "111-111-1111"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TSUN",
        "first_name": "IAN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-06-15",
        "last_updated": "2025-07-08",
        "certification_date": "2025-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A188842",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Constantine Tsigrelis, M.D.
• Julie V Tsirambidis, C.N.P.
• Theodore V Tso, D.M.D.
• TSSC Inc
• Wayne Tsuang, MD
• Takahiro Tsushima
• Maryana Tsyhyl
• Chasity Ann Tubbs
• Declan Dwight Tubbs
• Jana M Tucci, CRNA

• Emergency Medicine Physician in Cleveland, OH
• Providers in Cleveland, OH by specialty
• Emergency Medicine Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 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.