Ryan D Holzmacher, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

42642-020 Issued in WI

Practice address

5017 S 110TH St
Greenfield, WI 53228-3131

Phone

(414) 301-3531

NPI assigned

Jun 20, 2006

Last updated

Sep 20, 2024By 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 3

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

Internal MedicineAlso: Nephrology

Education

Southern Illinois University School of Medicine, 1999

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Oak Medical SCGroup PAC ID 0042595175, 118 clinicians

Maple Medical SCGroup PAC ID 9032471248, 25 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Waukesha Memorial Hospital Hospital, Waukesha, WI, CCN 520008

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• Maple Medical SC

  • Physical Medicine & Rehabilitation Physician
  • Waukesha, WI
  • NPI 1487152104

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Oak Medical SC

  • Internal Medicine Physician
  • Waukesha, WI
  • NPI 1669910345
  Medicare reassignment Care Compare group NPD
• Curana Health of Wisconsin Inc

  • Internal Medicine Physician
  • Hartford, WI
  • NPI 1699407890
  Medicare reassignment NPD
• CH Specialty Services Wi SC

  • Internal Medicine Physician
  • Hartford, WI
  • NPI 1063115319
  Medicare reassignment
• Badger Medical Group S.C.

  dba Doctors Express Waukesha

  • Urgent Care Clinic/Center
  • Waukesha, WI
  • NPI 1902215189
  Authorized official Same address or phone
• Milwaukee Nephrology Care Inc

  • Health Service Clinic/Center
  • Brookfield, WI
  • NPI 1386968428
  Authorized official Same address or phone
• Advanced Pain Management SC

  • Pain Medicine Physician
  • Greenfield, WI
  • NPI 1770506669
  NPD (past)
• Greater Milwaukee Medical Services

  • General Practice Physician
  • Milwaukee, WI
  • NPI 1639100720
  NPD (past)
• Prohealth Medical Group Inc

  • Family Medicine Physician
  • Waukesha, WI
  • NPI 1790720613

  Internal Medicine

  NPD (past)

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

• Prohealth Waukesha Memorial Hospital, Inc.

  • General Acute Care Hospital
  • Waukesha, WI
  • NPI 1629056890
  Care Compare affiliation

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

{
    "created_epoch": "1150761600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1726790400000",
    "number": "1598700601",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19050 BLUE RIDGE CT",
            "city": "BROOKFIELD",
            "state": "WI",
            "postal_code": "530455103",
            "telephone_number": "414-202-1724"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5017 S 110TH ST",
            "city": "GREENFIELD",
            "state": "WI",
            "postal_code": "532283131",
            "telephone_number": "414-301-3531"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOLZMACHER",
        "first_name": "RYAN",
        "middle_name": "D",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-20",
        "last_updated": "2024-09-20",
        "certification_date": "2024-09-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "42642-020",
            "primary": true
        },
        {
            "code": "207RN0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Nephrology",
            "state": "WI",
            "license": "42642-020",
            "primary": false
        },
        {
            "code": "208VP0000X",
            "taxonomy_group": "",
            "desc": "Pain Medicine, Pain Medicine",
            "state": "WI",
            "license": "42642-020",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "34749000",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Holistic Hospice Inc
• Katelyn Hollarbush
• Adam Joseph Holt, MD
• Jeana Marie Holt, APNP
• Martha Holterman, MSOT
• Horizon Healthcare, Inc
• Lois M Hornung, SLP
• Lisa Rae Hottenstein-Meier, HIS
• Annah C Houk, PA-C
• Richard Louis Hruby Jr., D.C.

• Internal Medicine Physician in Greenfield, WI
• Providers in Greenfield, WI by specialty
• Internal Medicine Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 20, 2024; 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.