Individual provider Active NPI

Gerald Chunyoung Park, MD

  • Internal Medicine Physician
  • Ann Arbor, MI
National Provider Identifier
1033409511
Registry record updated Aug 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
4301106226 Issued in MI
Practice address
1500 E Medical Center Dr
Ann Arbor, MI 48109-5000
Phone
(734) 936-4000
NPI assigned
Apr 18, 2011
Last updated
Aug 15, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 15, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Internal Medicine Physician 207R00000X 4301106226 MI Primary

Addresses

Primary practice location

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

Mailing address

3621 S State St
Ann Arbor, MI 48108-1633
Phone (734) 647-5299

Other practice location 1

5301 E Huron River Dr
Ypsilanti, MI 48197-1051
Phone (734) 712-8676

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20140825000703 MI Practitioner - Internal MedicinePractitioner - Hospitalist 6002048766 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Hospitalist
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1500 E Medical Ctr Dr
Ann Arbor, MI 48109-5000
Phone (734) 936-4000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Regents of the University of Michigan Internal Medicine CurrentSince Jul 24, 2025 Accepting new patients
Regents of the University of Michigan Internal Medicine Current Accepting new patients
Regents of the University of Michigan CurrentSince Jul 24, 2025 Accepting new patients
Regents of the University of Michigan Past Accepting new patients

Locations

1500 E Medical Center Dr
Ann Arbor, MI 48109
Phone (734) 936-4280

24 Frank Lloyd Wright Dr
Ann Arbor, MI 48105
Phone (734) 930-7400

3621 S State St
Ann Arbor, MI 48108
Phone (734) 647-5229

5301 McAuley Dr
Ypsilanti, MI 48197
Phone (734) 712-7246

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1303084800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755216000000",
    "number": "1033409511",
    "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": "5301 E Huron River Dr",
            "address_purpose": "LOCATION",
            "city": "Ypsilanti",
            "state": "MI",
            "postal_code": "481971051",
            "country_code": "US",
            "telephone_number": "734-712-8676",
            "fax_number": "734-222-3100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PARK",
        "first_name": "GERALD",
        "middle_name": "CHUNYOUNG",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-04-18",
        "last_updated": "2025-08-15",
        "certification_date": "2025-08-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301106226",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ann Arbor, MI

Sources for this page

Verify at the official NPI Registry.