David M Horak, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

41586 Issued in WI

Practice address

325 N Commercial St
Neenah, WI 54956-2665

Phone

(920) 722-1583

Fax

(920) 722-7454

NPI assigned

Dec 22, 2005

Last updated

Jul 13, 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

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

Specialty

Diagnostic Radiology

Education

Medical College of Wisconsin, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Radiology Associates of the Fox Valley SCGroup PAC ID 0446152748, 73 clinicians

Orthopedic and Sports Medicine Specialists of Green Bay SCGroup PAC ID 9739264714, 47 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• SSM Health St Agnes Hospital-Fond Du Lac Hospital, Fond Du Lac, WI, CCN 520088
• Ascension NE Wisconsin - St Elizabeth Campus Hospital, Appleton, WI, CCN 520009
• Waupun Memorial Hospital Hospital, Waupun, WI, CCN 521327
• Thedacare Regional Medical Center - Appleton Inc Hospital, Appleton, WI, CCN 520160
• Thedacare Regional Med Ctr - Neenah Hospital, Neenah, WI, CCN 520045

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir-myrecord.cerner.com/r4/0cda6ed7-9e18-4112-ab11-d5a45a40c8d5/

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.

• Orthopedic & Sports Medicine Specialists of Green Bay, SC

  • Specialist
  • Green Bay, WI
  • NPI 1760670145
  Medicare reassignment Care Compare group NPD
• Radiology Associates of the Fox Valley, SC

  • Diagnostic Radiology Physician
  • Neenah, WI
  • NPI 1477539443
  Medicare reassignment Care Compare group NPD
• Madison Radiologists S C

  • Diagnostic Radiology Physician
  • Madison, WI
  • NPI 1871573725
  Medicare reassignment NPD
• LK Anderson Consulting LLC

  dba A Healing Place, Complete Counseling Care

  • Mental Health Counselor
  • Neenah, WI
  • NPI 1215401468
  NPD (past)

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

• Agnesian Healthcare, Inc

  dba SSM Health St Agnes Hospital Fond Du Lac

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1346228541
  Care Compare affiliation
• Ascension NE Wisconsin, Inc

  • Ambulatory Surgical Clinic/Center
  • Menasha, WI
  • NPI 1124075536

  Hospital

  Care Compare affiliation
• Ascension NE Wisconsin, Inc

  dba Ascension NE Wisconsin-St Elizabeth Campus

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1407803638
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc

  dba ThedaCare Medical Center Orthopedics, Spine, and Pain

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1740920909
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1497119218
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1689038408
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  dba WI Veterans Village Physical Therapy

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1831773589
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1902832306
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  dba ThedaCare Medical Center - Fond Du Lac

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1912721002
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  dba ThedaCare Medical Center - Oshkosh

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1912880329
  Care Compare affiliation
• Thedacare Regional Medical Center - Neenah, Inc.

  • General Acute Care Hospital
  • Neenah, WI
  • NPI 1023472842
  Care Compare affiliation
• Thedacare Regional Medical Center - Neenah, Inc.

  • General Acute Care Hospital
  • Menasha, WI
  • NPI 1720434806
  Care Compare affiliation

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

{
    "created_epoch": "1135209600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1730165515",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "325 N COMMERCIAL ST",
            "city": "NEENAH",
            "state": "WI",
            "postal_code": "549562665",
            "telephone_number": "920-722-1583",
            "fax_number": "920-722-7454"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "325 N COMMERCIAL ST",
            "city": "NEENAH",
            "state": "WI",
            "postal_code": "549562665",
            "telephone_number": "920-722-1583",
            "fax_number": "920-722-7454"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HORAK",
        "first_name": "DAVID",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-22",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "WI",
            "license": "41586",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "34167300",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Peter David Holzwarth, MD
• Nancy Homb, LMFT
• Homestead Dental LLC
• Phan Yen Hong-Lishner, PH.D.
• Madison Blair Hopfensperger, DC, ATC
• Eric Michael Horrell, APNP
• Lauren J Houle, PHARMD
• Christopher P Hugo, M.D.
• Jeanne Marie Hugo, R.N.
• Alyssa Huinker

• Diagnostic Radiology Physician in Neenah, WI
• Providers in Neenah, WI by specialty
• Diagnostic Radiology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.