Individual provider Active NPI

Thomas Tackman, MD

  • Internal Medicine Physician
  • Fort Atkinson, WI
National Provider Identifier
1902802416
Registry record updated Dec 17, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
30509 Issued in WI
Practice address
611 Sherman Ave E
Fort Atkinson, WI 53538-1960
Phone
(920) 563-5571
Fax
(920) 563-7705
NPI assigned
Jun 21, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 17, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 30509 WI Primary

Addresses

Primary practice location

611 Sherman Ave E
Fort Atkinson, WI 53538-1960

Mailing address

PO Box 249
Fort Atkinson, WI 53538-0249
Phone (920) 563-5571

Other practice location 1

1461 W Main St
Whitewater, WI 53190-1568
Phone (262) 473-5888

Medicare participation

Medicare enrollment files
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: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20070720000859 WI Practitioner - Internal MedicinePractitioner - General Surgery 9537260591 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: General Surgery
Education
Medical College of Wisconsin, 1988
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Fort Healthcare IncGroup PAC ID 0840189718, 159 clinicians

Practice addresses (Care Compare)

611 Sherman Ave E
Fort Atkinson, WI 53538-1960
Phone (920) 563-5571

Hospital & facility affiliations

  • Commonheart Home Health Home health agency, Waukesha, WI, CCN 527151
  • Rainbow Hospice Care Hospice, Jefferson, WI, CCN 521555
  • Agrace Hospicecare Hospice, Madison, WI, CCN 521505
  • Fort Memorial Hospital Hospital, Fort Atkinson, WI, CCN 520071
  • University of Wi Hospitals & Clinics Authority Hospital, Madison, WI, CCN 520098

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
30509WIMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Fort Healthcare Inc Current Accepting new patients
Fort Healthcare Inc CurrentSince Aug 1, 2007 Accepting new patients

Locations

704 Katie Ct
Cambridge, WI 53523
Phone (608) 423-1100

500 McMillen St
Fort Atkinson, WI 53538
Phone (920) 563-5571

512 Wilcox St
Fort Atkinson, WI 53538
Phone (920) 563-7366

611 Sherman Ave E
Fort Atkinson, WI 53538
Phone (920) 563-6667

1461 W Main St
Ste A
Whitewater, WI 53190

1461 W Main St
Ste F
Whitewater, WI 53190
Phone (262) 473-5599

1461 W Main St
Whitewater, WI 53190
Phone (262) 472-6839

Interoperability endpoints

  • FHIR API: https://fhir-myrecord.cerner.com/r4/8F7ruIta-JA7ecm4ommy-Q50dF1FkFe4/
  • Direct secure messaging: thomas.tackman@direct.forthc.com

Organizations & group practices 2

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.

Hospital & facility affiliations 6

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": "1119312000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765929600000",
    "number": "1902802416",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 249",
            "city": "FORT ATKINSON",
            "state": "WI",
            "postal_code": "535380249",
            "telephone_number": "920-563-5571",
            "fax_number": "920-563-7705"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "611 SHERMAN AVE E",
            "city": "FORT ATKINSON",
            "state": "WI",
            "postal_code": "535381960",
            "telephone_number": "920-563-5571",
            "fax_number": "920-563-7705"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1461 W Main St",
            "address_purpose": "LOCATION",
            "city": "Whitewater",
            "state": "WI",
            "postal_code": "531901568",
            "country_code": "US",
            "telephone_number": "262-473-5888",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TACKMAN",
        "first_name": "THOMAS",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-21",
        "last_updated": "2025-12-17",
        "certification_date": "2025-12-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "30509",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fort Atkinson, WI

Sources for this page

Verify at the official NPI Registry.