Justin Theodore Chang, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

84868 Issued in WI

Practice address

202 S Park St
Madison, WI 53715-1507

Phone

(608) 417-5695

Fax

(608) 417-5890

NPI assigned

Jun 12, 2017

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in WI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Hospitalist

Education

University of Iowa, RJ & L Carver College of Medicine, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Meriter Hospital IncGroup PAC ID 3971412735, 122 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Unitypoint Health - Meriter Hospital, Madison, WI, CCN 520089
• University of Wi Hospitals & Clinics Authority Hospital, Madison, WI, CCN 520098
• St Peter'S Hospital Hospital, Albany, NY, CCN 330057

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jchang744690@direct.unitypoint.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.

• Meriter Hospital, Inc.

  • Psychiatric Hospital Unit
  • Madison, WI
  • NPI 1548280225
  Medicare reassignment Care Compare group NPD
• Meriter Hospital, Inc.

  • General Practice Physician
  • Madison, WI
  • NPI 1548635345
  NPD
• Meriter Hospital, Inc.

  • General Practice Physician
  • Madison, WI
  • NPI 1932572955
  NPD
• St Luke'S Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD
• Allen Memorial Hospital Corporation

  • General Acute Care Hospital
  • Waterloo, IA
  • NPI 1336231091
  NPD (past)
• Iowa Physicians Clinic Medical Foundation

  • Family Medicine Physician
  • Shellsburg, IA
  • NPI 1851839153
  NPD (past)

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

• Meriter Hospital, Inc.

  • Rehabilitation Clinic/Center
  • Madison, WI
  • NPI 1073672556

  Hospital

  Care Compare affiliation
• Meriter Hospital, Inc.

  • General Acute Care Hospital
  • Madison, WI
  • NPI 1114920048
  Care Compare affiliation
• University of Wisconsin Hospitals and Clinics Authority

  • General Acute Care Hospital
  • Madison, WI
  • NPI 1922043744
  Care Compare affiliation
• St. Peter'S Hospital of the City of Albany

  • General Acute Care Hospital
  • Albany, NY
  • NPI 1497701106
  Care Compare affiliation

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

{
    "created_epoch": "1497225600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776902400000",
    "number": "1841729910",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "202 S PARK ST",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537151507",
            "telephone_number": "608-417-6000",
            "fax_number": "608-417-3878"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "202 S PARK ST",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537151507",
            "telephone_number": "608-417-5695",
            "fax_number": "608-417-5890"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "JUSTIN",
        "middle_name": "THEODORE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-12",
        "last_updated": "2026-04-23",
        "certification_date": "2026-04-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MO",
            "license": "2017018876",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WI",
            "license": "84868",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IA",
            "license": "47374",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Suresh R Chandra, MD
• Althea W Chang, MS LMFT
• Chen Kang Chang, MD
• Inho Chang, MD
• Julie Elizabeth Chang, M.D.
• Munchung Chang, MS, PT
• Shee Yee Chang
• Stephanie Chang
• Tony S Chang, MD
• Yia Chang

• Family Medicine Physician in Madison, WI
• Providers in Madison, WI by specialty
• Family Medicine Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 23, 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.