DR. WILLIAM E AYETEY (M.D.) – Psychiatry Physician, NPI 1780604025
Psychiatry Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,367 PSYCHIATRY in IL
Provider Addresses for DR. WILLIAM E AYETEY (M.D.)
1045 W Stephenson St
Freeport, IL 610324864
Phone: (815) 741-7652
Type: Location
875 S Route 31
Crystal Lake, IL 600148190
Phone: (779) 220-5500
Fax: (779) 220-5184
Type: Location
901 Grant St
Harvard, IL 600331821
Phone: (815) 943-5431
Fax: (815) 943-0659
Type: Location
8201 E Riverside Blvd
Rockford, IL 611142300
Phone: (815) 971-7000
Fax: (815) 968-4795
Type: Location
1000 Mineral Point Ave
Janesville, WI 535482940
Phone: (608) 756-6761
Fax: (608) 756-6572
Type: Location
903, Mineral Point Avenue, Janesville, Rock County, Wisconsin, 53548, United States
JANESVILLE, WI 535482970
Phone: (608) 756-5555
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $356.
Total Amount is formed as General ($356) + Research ($0) + Ownership ($0) = $356.
Last reported payment date: 2024-02-16 • Largest payer in this snapshot: Otsuka America Pharmaceutical, Inc. ($125).
Total Amount
$356
General + Research + Ownership
Payments
3
Total payment records
General Amount
$356
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-02-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Otsuka America Pharmaceutical, Inc. | $125 |
| ABBVIE INC. | $120 |
| Alkermes, Inc. | $110 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2020-12-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100123000019 | I | Psychiatry | WI | TBD |
| I20201217001725 | I | Psychiatry | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99238 | Hospital discharge day management, 30 minutes or less | 37 | 34 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 29 | 12 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 27 | 24 | $0 |
Insurance plans in this area (ZIP 61032)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PSYCHIATRY | WI | 90792 | Psychiatric diagnostic evaluation with medical services | 116 | 96 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WI | |
| - | WI | |
| Nurse Practitioner | IL | |
| - | WI | |
| O P H T H A L M O L O G Y | IL | |
| - | WI | |
| - | IL | |
| - | WI | |
| Diagnostic Radiology | IL | |
| Nurse Practitioner | IL |
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