Individual provider Active NPI

Thomas Eugene Hartwig, M.D.

  • Psychiatry Physician
  • Ann Arbor, MI
National Provider Identifier
1982865382
Registry record updated Jan 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
4301092465 Issued in MI
Practice address
1500 E Medical Center Dr
MCHC, F6135
Ann Arbor, MI 48109-5000
Phone
(734) 615-0199
NPI assigned
Jun 19, 2008
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 26, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X 4301092465 MI Primary

Addresses

Primary practice location

1500 E Medical Center Dr
MCHC, F6135
Ann Arbor, MI 48109-5000

Mailing address

24114 Eton Ave
Dearborn Heights, MI 48125-1918
Phone (313) 617-6557

Other practice location 1

400 Hobart St
Cadillac, MI 49601-2331
Phone (231) 935-6380

Other practice location 2

1105 Sixth St
Traverse City, MI 49684-2345
Phone (231) 935-6380

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address thomas.hartwig@mbh.eclinicaldirectplus.com

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
I20120816000857 MI Practitioner - Psychiatry 1052567468 Reassigns benefits to 3 organizations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Munson Medical Center Current Accepting new patients
Munson Healthcare Cadillac Psychiatry CurrentSince Jan 1, 2026 Accepting new patients
Munson Medical Center CurrentSince Sep 8, 2015 Accepting new patients
Munson Medical Center CurrentSince Sep 8, 2015 Accepting new patients
Munson Medical Center CurrentSince Sep 8, 2015 Accepting new patients
Univerisity of Michigan Health System Past Accepting new patients

Locations

2513 Momentum Pl
Chicago, IL 60689
Phone (231) 935-8031

400 Hobart St
Cadillac, MI 49601
Phone (231) 876-7200

1110 Sixth St
Traverse City, MI 49684
Phone (231) 392-8400

1400 Medical Campus Dr
Traverse City, MI 49684
Phone (231) 935-8000

1105 Sixth St
Ste D6
Traverse City, MI 49684
Phone (231) 935-6380

1105 Sixth St
Traverse City, MI 49684
Phone (231) 922-9000

Organizations & group practices 7

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.

NPI Registry JSON

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

{
    "created_epoch": "1213833600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769385600000",
    "number": "1982865382",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24114 ETON AVE",
            "city": "DEARBORN HEIGHTS",
            "state": "MI",
            "postal_code": "481251918",
            "telephone_number": "313-617-6557"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 E MEDICAL CENTER DR",
            "address_2": "MCHC, F6135",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481095000",
            "telephone_number": "734-615-0199"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "400 Hobart St",
            "address_purpose": "LOCATION",
            "city": "Cadillac",
            "state": "MI",
            "postal_code": "496012331",
            "country_code": "US",
            "telephone_number": "231-935-6380",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1105 Sixth St",
            "address_purpose": "LOCATION",
            "city": "Traverse City",
            "state": "MI",
            "postal_code": "496842345",
            "country_code": "US",
            "telephone_number": "231-935-6380",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HARTWIG",
        "first_name": "THOMAS",
        "middle_name": "EUGENE",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-06-19",
        "last_updated": "2026-01-26",
        "certification_date": "2026-01-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MI",
            "license": "4301092465",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "thomas.hartwig@mbh.eclinicaldirectplus.com",
            "affiliation": "N",
            "address_1": "1105 Sixth St",
            "city": "Traverse City",
            "state": "MI",
            "country_code": "US",
            "postal_code": "496842345",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Ann Arbor, MI

Sources for this page

Verify at the official NPI Registry.