David C Hahn, DPT, SCS

Primary specialty

Physical TherapistTaxonomy code 225100000X

License

5535 Issued in WI

Practice address

3901 Stewart Ave
Wausau, WI 54401-3948

Phone

(715) 841-0002

Fax

(715) 841-0003

NPI assigned

Mar 26, 2007

Last updated

May 22, 2026By the provider in NPPES

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

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in WI

Enrollment records 1

Specialty

Physical Therapist in Private Practice

Education

Other, 1996

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Orthopaedic Centers of Wisconsin S CGroup PAC ID 4981679552, 58 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

79.57 of 100Reported as group

Quality

77.2

Promoting interoperability

59

Improvement activities

40

Cost

88.86

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: david.hahn@orthoassocwau.directbygreenway.com
• FHIR API: https://fhir-api.fhirprod.aws.greenwayhealth.com/fhir/R4/2.16.840.1.113883.3.140.73823

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.

• Orthopaedic Centers of Wisconsin S C

  • Occupational Therapist
  • Wausau, WI
  • NPI 1174977433

  Physical Therapist

  Medicare reassignment Care Compare group NPD
• Divine Savior Healthcare, Inc.

  dba Aspirus Divine Savior Hospital

  • General Acute Care Hospital
  • Portage, WI
  • NPI 1124083894
  NPD (past)
• Orthopaedic Centers of Wisconsin S C

  dba Pro Physical Therapy and Hand Center of Wausau

  • Physical Therapist
  • Wausau, WI
  • NPI 1144844606
  NPD (past)

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

{
    "created_epoch": "1174867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779408000000",
    "number": "1831217371",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3901 STEWART AVE",
            "city": "WAUSAU",
            "state": "WI",
            "postal_code": "544013948",
            "telephone_number": "715-907-0900",
            "fax_number": "715-803-6977"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3901 STEWART AVE",
            "city": "WAUSAU",
            "state": "WI",
            "postal_code": "544013948",
            "telephone_number": "715-841-0002",
            "fax_number": "715-841-0003"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4002 Schofield Ave Ste 2",
            "address_purpose": "LOCATION",
            "city": "Weston",
            "state": "WI",
            "postal_code": "544763809",
            "country_code": "US",
            "telephone_number": "715-870-2422",
            "fax_number": "715-870-2428",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAHN",
        "first_name": "DAVID",
        "middle_name": "C",
        "credential": "DPT, SCS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-03-26",
        "last_updated": "2026-05-22",
        "certification_date": "2026-05-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "WI",
            "license": "5535",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "WI LICENSE #",
            "identifier": "5535",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "David.Hahn@orthoassocwau.directbygreenway.com",
            "affiliation": "N",
            "address_1": "3901 Stewart Ave",
            "city": "Wausau",
            "state": "WI",
            "country_code": "US",
            "postal_code": "544013948",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Sarah G Hackworth, MD
• Alec Hafferman
• Michelle Hagemeister
• Jennifer Hagen, BSN RN
• Cynthia Hahn
• James Hahn
• Kimberly A Halama, PT
• Lynn Marie Halambeck, RPH
• Deborah A Hale, LPN
• Parker John Hall

• Physical Therapist in Wausau, WI
• Providers in Wausau, WI by specialty
• Physical Therapist in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.