2026 NPPES data Psychiatry Physician NPI 1780604025 M.D.
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WILLIAM AYETEY, M.D.

Psychiatry Physician in JANESVILLE, Wisconsin. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
154
Medicare Part D claims · 40 beneficiaries · Psychiatry Physician avg: 1K
Industry payments
$125
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: WILLIAM AYETEY, M.D. is a Psychiatry Physician ([object Object]) practicing in JANESVILLE, Wisconsin with a Medicare Part D prescribing footprint of 154 claims across 40 beneficiaries . Industry payments of $125 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: WILLIAM AYETEY, M.D. filed 154 Medicare Part D claims in 2023 across JANESVILLE, Wisconsin. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

WILLIAM AYETEY, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

WILLIAM AYETEY, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/20/2006

NPI 1780604025

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

154 85% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Wisconsin

How Psychiatry Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Psychiatry Physician share within Wisconsin

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

WILLIAM AYETEY, M.D. is a Psychiatry Physician provider practicing in JANESVILLE, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1780604025. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

WILLIAM AYETEY, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 903 MINERAL POINT AVE, JANESVILLE, WI, 53548, with a listed phone of (608) 756-5555. NPI 1780604025 was issued on 07/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AYETEY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 154 prescription claims written by this provider, covering 40 Medicare beneficiaries and totaling roughly $11K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

903 MINERAL POINT AVE
JANESVILLE, WI 53548

Provider Details

NPI 1780604025
Specialty Psychiatry Physician
Credentials M.D.
Gender Male
NPI Issued 07/20/2006

Hospital and facility affiliations

Facilities where WILLIAM AYETEY, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

MERCY HEALTH SYSTEM CORPORATION
JANESVILLE, WI

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for WILLIAM AYETEY, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$125

Largest payer

Otsuka America Pharmaceutical, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

154
Total Claims
$11K
Total Drug Cost
40
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
160
Total Day Supply
4,308
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
51.5 years
Avg HCC Risk Score
1.30
Gender Split
48% female / 53% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Hydroxyzine Hcl
17
Trazodone Hcl
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Psychiatry Physician Overview

How WILLIAM AYETEY, M.D. fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

WILLIAM AYETEY, M.D.'s 154 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Wisconsin

Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as AYETEY.

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is WILLIAM AYETEY, M.D.'s specialty?
WILLIAM AYETEY, M.D. specializes in Psychiatry Physician and practices in JANESVILLE, Wisconsin. Credentials: M.D..
How much does WILLIAM AYETEY, M.D. prescribe under Medicare Part D?
In 2023, WILLIAM AYETEY, M.D. wrote 154 Medicare Part D claims totaling $11K in drug costs for 40 beneficiaries.
Where is WILLIAM AYETEY, M.D. located?
WILLIAM AYETEY, M.D. is located at 903 MINERAL POINT AVE, JANESVILLE, WI, 53548. Phone: (608) 756-5555.
What is WILLIAM AYETEY, M.D.'s NPI number?
WILLIAM AYETEY, M.D.'s National Provider Identifier (NPI) is 1780604025, issued on 07/20/2006.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does WILLIAM AYETEY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM AYETEY, M.D.'s most frequently prescribed drugs include Hydroxyzine Hcl, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM AYETEY, M.D. accept Medicare?
WILLIAM AYETEY, M.D. appears in CMS Medicare data with 154 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM AYETEY, M.D.'s credentials?
WILLIAM AYETEY, M.D.'s NPI is 1780604025 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology