William R Hartman, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

71453 Issued in WI

Practice address

1400 Bellinger Street
Eau Claire, WI 54703-5222

Phone

(715) 838-5222

NPI assigned

Feb 14, 2006

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

Electronic endpoints 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

Anesthesiology

Education

Other, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mayo Clinic Health System-Northwest Wisconsin Region IncGroup PAC ID 4385553627, 797 clinicians

Mayo Clinic Health System-Southwest Wisconsin Region IncGroup PAC ID 0345152443, 539 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mayo Clinic Health System Eau Claire Hospital Hospital, Eau Claire, WI, CCN 520070
• Mayo Clinic Health System-Franciscan Medical Center Inc Hospital, La Crosse, WI, CCN 520004

Merit-based Incentive Payment System (MIPS)

Final score

83.32 of 100Reported as group

Quality

87.78

Promoting interoperability

77

Improvement activities

40

Cost

75.8

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Multi-Specialty Clinic/Center
  • Eau Claire, WI
  • NPI 1235588831
  Medicare reassignment Care Compare group NPD
• Mayo Clinic Health System-Southwest Wisconsin Region, Inc.

  • Multi-Specialty Clinic/Center
  • La Crosse, WI
  • NPI 1629056049
  Medicare reassignment Care Compare group NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Multi-Specialty Clinic/Center
  • Osseo, WI
  • NPI 1083140990
  NPD
• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • Rural Health Clinic/Center
  • Mondovi, WI
  • NPI 1174116669
  NPD
• Mayo Clinic Health System-Southwest Wisconsin Region, Inc.

  • Multi-Specialty Clinic/Center
  • La Crosse, WI
  • NPI 1942980917
  NPD

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

• Mayo Clinic Health System-Northwest Wisconsin Region, Inc.

  • General Acute Care Hospital
  • Eau Claire, WI
  • NPI 1629027578
  Care Compare affiliation
• Mayo Clinic Health System-Southwest Wisconsin Region, Inc.

  • General Acute Care Hospital
  • La Crosse, WI
  • NPI 1801874227
  Care Compare affiliation

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

{
    "created_epoch": "1139875200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779062400000",
    "number": "1659345080",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 BELLINGER STREET",
            "city": "EAU CLAIRE",
            "state": "WI",
            "postal_code": "547035222",
            "telephone_number": "715-838-5222"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 1st St SW",
            "address_purpose": "LOCATION",
            "city": "Rochester",
            "state": "MN",
            "postal_code": "559050001",
            "country_code": "US",
            "telephone_number": "507-284-2511",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3096 Edenberry St",
            "address_purpose": "LOCATION",
            "city": "Fitchburg",
            "state": "WI",
            "postal_code": "537117201",
            "country_code": "US",
            "telephone_number": "507-254-1478",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HARTMAN",
        "first_name": "WILLIAM",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-14",
        "last_updated": "2026-05-18",
        "certification_date": "2026-05-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MN",
            "license": "46750",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "71453",
            "primary": true
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CO",
            "license": "0055601",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "whartman2561324@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "1400 Bellinger Street",
            "city": "EAU CLAIRE",
            "state": "WI",
            "country_code": "US",
            "postal_code": "547035222",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Ellen E Harris, CRNA
• Melissa Kay Hart, M.D.
• Molly Hart
• Jeanne Marie Hartman, P.T.
• Michael Aaron Hartman, MD
• Harveye, LLC
• Zachary Hasbrouck
• William C Haselow, M.D.
• Kasey Rae Haselwander, PA-C
• Brittany Hasenberg, LPC

• Anesthesiology Physician in Eau Claire, WI
• Providers in Eau Claire, WI by specialty
• Anesthesiology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 18, 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.