1. Home
  2. Directory
  3. Wisconsin
  4. Rhinelander
  5. Psychiatry Neurology
  6. NPI Profile

WILLIAM HYATT MD, PHD
NPI 1356928907
Psychiatry & Neurology - Psychiatry in Rhinelander, WI

Active since March 28, 2021PECOS EnrolledAccepts Medicare Assignment
1630 N CHIPPEWA DR, RHINELANDER, WI 54501(715) 361-5480 Get Directions Write a Review

NPPES record last updated: July 8, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 8, 2025, Mar 28, 2021 (2 updates tracked since 2021).

About William Hyatt Md, Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM HYATT MD, PHD (NPI 1356928907) is an individual psychiatry provider in Rhinelander, Wisconsin, licensed in Wisconsin (85977-20) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Aspirus Rhinelander Hospital, and is a graduate of University Of Arkansas College Of Medicine (2021).

NPPES Registry Identity

NPI1356928907
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameWILLIAM HYATTCredential: MD, PHD
Location Address1630 N CHIPPEWA DRRhinelander, WI 54501-9503
Mailing Address1630 N Chippewa DrRhinelander, WI 54501-9503 · (715) 361-5480
Phone(715) 361-5480
Sole ProprietorNo
Medical School CMSUniversity Of Arkansas College Of MedicineGraduated 2021
Enumeration DateMarch 28, 2021
Last NPPES UpdateJuly 8, 20252 updates tracked since enumeration
NPPES CertifiedJune 22, 2025
✔ NPI 1356928907 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in WI · 85977-20
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1630 N CHIPPEWA DR, Rhinelander, WI 54501
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, Medica.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Hyatt Md, Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6507266533
PECOS Enrollment IDI20250820001385
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Aspirus Rhinelander Hospital

Acute Care Hospitals · Rhinelander, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520019
Location2251 North Shore DrRhinelander, WI 54501 · Oneida County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54501 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$163.24 typical visit price
range $53.90 – $163.24
Typical copayment $40.81 (range $13.47 – $40.81)
Most-billed visit code 99205
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LEIGHA SUZANNE JOLIN MSW, LCSW
Social Worker (Clinical)
1630 N CHIPPEWA DR
RHINELANDER, WI 54501
Oneida County (715) 361-2805
NORTHERN WISCONSIN BONE & JOINT CENTER, LTD
Orthopaedic Surgery
1630 N CHIPPEWA DR
RHINELANDER, WI 54501
Oneida County (715) 361-5480
AMY J H EWAN DO
Family Medicine
1630 N CHIPPEWA DR
RHINELANDER, WI 54501
Oneida County (715) 361-5480

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Hyatt's NPI number?

The NPI number for William Hyatt is 1356928907. It was assigned to this individual provider in the NPPES registry on March 28, 2021.

Where is William Hyatt located?

William Hyatt practices at 1630 N Chippewa Dr, Rhinelander, WI 54501. The listed phone number is (715) 361-5480.

What is William Hyatt's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is William Hyatt enrolled in Medicare?

Yes. William Hyatt is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Hyatt accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan and Medica list William Hyatt as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Hyatt affiliated with any hospitals?

According to CMS data, William Hyatt is affiliated with Aspirus Rhinelander Hospital.

When was this NPI record last updated?

The NPPES record for William Hyatt was last updated on July 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.