Daniel Tuan Thien Thieu, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

A190145 Issued in CA

Practice address

2501 E Chapman Ave Ste 305
Orange, CA 92869-3204

Phone

(714) 628-3230

Fax

(714) 633-1815

NPI assigned

Mar 21, 2022

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

Family Practice

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Providence Medical FoundationGroup PAC ID 8921993205, 1,461 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence St. Joseph Hospital Hospital, Orange, CA, CCN 050069

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Providence Medical Foundation

  • Family Medicine Physician
  • Brea, CA
  • NPI 1871607762
  Medicare reassignment Care Compare group NPD (past)
• Providence Medical Foundation

  • General Practice Physician
  • Diamond Bar, CA
  • NPI 1285890624
  NPD
• Providence Medical Foundation

  • Family Medicine Physician
  • Anaheim, CA
  • NPI 1609925957
  NPD
• Providence Medical Foundation

  • Family Medicine Physician
  • Anaheim, CA
  • NPI 1639715709
  NPD

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

• St Joseph Hospital of Orange

  dba Providence St. Joseph Hospital

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1912982216
  Care Compare affiliation
• St. Joseph Hospital of Orange

  dba Providence St. Joseph Hospital

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1558575746
  Care Compare affiliation

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

{
    "created_epoch": "1647820800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758499200000",
    "number": "1154070886",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2501 E CHAPMAN AVE",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928693204",
            "telephone_number": "714-480-2440"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2501 E CHAPMAN AVE STE 305",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928693204",
            "telephone_number": "714-628-3230",
            "fax_number": "714-633-1815"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THIEU",
        "first_name": "DANIEL",
        "middle_name": "TUAN THIEN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-21",
        "last_updated": "2025-09-22",
        "certification_date": "2025-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A190145",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jay Thomas Thetford, MD
• Aaron Hung Thi
• William N Thibault, MD
• Danielle Lee Thienes
• Meghan Thierry
• Annika Saira Thiim
• Julie Thok
• Thomas a Hryniewicki M D Inc
• Chloe Anne Thomas
• Connie Sue Thomas, LMFT

• Family Medicine Physician in Orange, CA
• Providers in Orange, CA by specialty
• Family Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 22, 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.