Heidi Diane Dumas, NP-C

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

4284-33 Issued in WI

Practice address

9940 N County Hwy K
Hayward, WI 54843

Phone

(715) 638-5100

Fax

(715) 634-6107

NPI assigned

Aug 11, 2010

Sex

Female

Sole proprietor

No

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

Specialties & licenses 7

Addresses

Other names 1

• Heidi Diane Dittmar Former name

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

St. Croix Tribal Council 7 clinicians

Lac Courte Oreilles Governing Board 19 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Tamarack Health Hayward Medical Center Hospital, Hayward, WI, CCN 521336

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hdumas@lcohc.directbygreenway.com

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.

• Lac Courte Oreilles Governing

  • Clinic/Center
  • Hayward, WI
  • NPI 1194830208

  Family, WI

  Medicare reassignment Care Compare group NPD
• St. Croix Tribal Council

  • Federally Qualified Health Center (FQHC)
  • Webster, WI
  • NPI 1831170091

  WI

  Medicare reassignment Care Compare group NPD

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

• Medical Services, Inc

  • Critical Access Hospital
  • Hayward, WI
  • NPI 1912992827

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1281484800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1194030445",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 331",
            "city": "MINONG",
            "state": "WI",
            "postal_code": "548590331",
            "telephone_number": "715-222-7859"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9940 N COUNTY HWY K",
            "city": "HAYWARD",
            "state": "WI",
            "postal_code": "54843",
            "telephone_number": "715-638-5100",
            "fax_number": "715-634-6107"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUMAS",
        "first_name": "HEIDI",
        "middle_name": "DIANE",
        "name_prefix": "Mrs.",
        "credential": "NP-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-08-11",
        "last_updated": "2026-07-13",
        "certification_date": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WI",
            "license": "130820-030",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MT",
            "license": "103462",
            "primary": false
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "MN",
            "license": "R-130332-4",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MT",
            "license": "103462",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WI",
            "license": "4284-33",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "WI",
            "license": "130820-030",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MN",
            "license": "R-130332-4",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "HEIDI",
            "last_name": "DITTMAR",
            "middle_name": "DIANE",
            "credential": "FNP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Andres David Dorantes, DMD
• Rosemary A Doyle, PSYD
• Dr John M Kane SC
• Sara Jane Drost, R.D.H.
• Patrick Thomas Duffy, D.D.S,
• Sarah Dums, RN, CNP
• Sabrina Ann Dunlap, MD
• Katherine Matthews Eichten, MD
• Leif E Erickson, OD
• Katelyn Ewer

• All providers in Hayward, WI
• Family Nurse Practitioner 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.