NPIMap

Individual provider Active NPI

William Hyatt, MD, PHD

  • Psychiatry Physician
  • Rhinelander, WI
National Provider Identifier
1356928907
Registry record updated Jul 8, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
85977-20 Issued in WI
Practice address
1630 N Chippewa Dr
Rhinelander, WI 54501-9503
Phone
(715) 361-5480
NPI assigned
Mar 28, 2021
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 8, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X 85977-20 WI Primary

Addresses

Primary practice location

1630 N Chippewa Dr
Rhinelander, WI 54501-9503

Mailing address

1630 N Chippewa Dr
Rhinelander, WI 54501-9503
Phone (715) 361-5480

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250820001385 WI Practitioner - Psychiatry 6507266533 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Psychiatry
Education
University of Arkansas College of Medicine, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1630 Chippewa Dr
Rhinelander, WI 54501-9503
Phone (715) 361-5480

Hospital & facility affiliations

  • Aspirus Rhinelander Hospital Hospital, Rhinelander, WI, CCN 520019

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine, Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
85977-20WIMDPsychiatry Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. CurrentSince Jul 10, 2025 Accepting new patients
Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc. CurrentSince Jul 10, 2025 Accepting new patients

Locations

29980 Network Pl
Chicago, IL 60673

400 W Glen St
Crandon, WI 54520
Phone (715) 478-3318

1630 N Chippewa Dr
Rhinelander, WI 54501
Phone (715) 361-5480

2251 N Shore Dr
Ste 100
Rhinelander, WI 54501
Phone (715) 361-2074

401 W Mohawk Dr
Ste 100
Tomahawk, WI 54487
Phone (715) 453-7700

240 Maple St
Woodruff, WI 54568
Phone (715) 356-8000

Interoperability endpoints

  • Direct secure messaging: whyatt379577@direct.aspirus.org

Organizations & group practices 2

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.

Hospital & facility affiliations 16

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

View all 16

NPI Registry JSON

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

{
    "created_epoch": "1616889600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751932800000",
    "number": "1356928907",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1630 N CHIPPEWA DR",
            "city": "RHINELANDER",
            "state": "WI",
            "postal_code": "545019503",
            "telephone_number": "715-361-5480"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1630 N CHIPPEWA DR",
            "city": "RHINELANDER",
            "state": "WI",
            "postal_code": "545019503",
            "telephone_number": "715-361-5480"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HYATT",
        "first_name": "WILLIAM",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-28",
        "last_updated": "2025-07-08",
        "certification_date": "2025-06-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "WI",
            "license": "85977-20",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Rhinelander, WI

Sources for this page

Verify at the official NPI Registry.