Robert Chang, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

4301079933 Issued in MI

Practice address

1500 E Medical Center Dr
Ann Arbor, MI 48109-5000

Phone

(734) 936-4000

NPI assigned

Oct 11, 2006

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MI

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 Michigan Medical School, 2002

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regents of the University of MichiganGroup PAC ID 3779496856, 3,344 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Michigan Health System Hospital, Ann Arbor, MI, CCN 230046

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rchang27783@direct.med.umich.edu

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.

• Regents of the University of Michigan

  • Internal Medicine Physician
  • Ann Arbor, MI
  • NPI 1205868353

  Internal Medicine, MI

  Medicare reassignment NPD
• Regents of the University of Michigan

  • Internal Medicine Physician
  • Ann Arbor, MI
  • NPI 1366472326

  Internal Medicine

  NPD
• Regents of the University of Michigan

  • Specialty Pharmacy
  • Dexter, MI
  • NPI 1952181919
  NPD
• Regents of the University of Michigan

  • General Acute Care Hospital
  • Ann Arbor, MI
  • NPI 1003878539
  NPD (past)

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

• Regents of the University of Michigan

  • General Acute Care Hospital
  • Ann Arbor, MI
  • NPI 1003878539

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1160524800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758585600000",
    "number": "1720177686",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3621 S STATE ST",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481081633",
            "telephone_number": "734-647-5299"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E MEDICAL CENTER DR",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095000",
            "telephone_number": "734-936-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1500 East Medical Center Dr",
            "address_2": "3rd floor Taubman Ctr Recp B",
            "address_purpose": "LOCATION",
            "city": "Ann Arbor",
            "state": "MI",
            "postal_code": "481095352",
            "country_code": "US",
            "telephone_number": "734-936-5582",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHANG",
        "first_name": "ROBERT",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-11",
        "last_updated": "2025-09-23",
        "certification_date": "2025-09-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301079933",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "4760794",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jonathan Chang
• Joy Weiling Chang, M.D.
• Jungsoo Chang, MD
• Megan Tien-Ling Chang, M.D.
• Olivia Chang
• Wan-Chu Chang
• Yiling Katharine Chang, MD
• Changing Lives Counseling PLLC
• Soupha Chanthinouvong
• Jeffrey Chao, MD

• All providers in Ann Arbor, MI
• Internal Medicine Physician in Michigan

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