William L. Guy, PH.D., M.D.
NPI 1295748101ActiveIndividual· Psychiatry & Neurology, Psychiatry· Southfield, MI
Psychiatry & Neurology, Psychiatry (PH.D., M.D.) in Southfield, Michigan, trained at University of Michigan Medical School (class of 1994). Their prescriptions cost Medicare Part D more than their services did: $203,114 for 1,494 claims, against $39,724 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 7 companies reporting payments in 2025, $169,194 in all, mostly speaking and faculty fees.
Overview
| NPI | 1295748101 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PH.D., M.D. |
| Sole proprietor | No |
| NPI issued | Aug 14, 2006 |
| Last updated in NPPES | Sep 10, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 4301063551 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Psychiatry (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 121 |
|---|---|
| Services billed | 405 across 8 procedure codes |
| Paid by Medicare | $39,724 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,494 · 2,465 30-day fills |
|---|---|
| Patients | 100 |
| Total drug cost | $203,114 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Optum Behavioral Care of Colorado PCAnn Arbor, MI · 197 clinicians
Industry payments (Open Payments)
- 2025$169,194 · 206 payments from 7 companies
- 2024$133,898 · 211 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $121,154 | 154 |
| Teva Pharmaceuticals USA, Inc. | $18,968 | 12 |
| Axsome Therapeutics, Inc. | $14,910 | 18 |
| Otsuka America Pharmaceutical, Inc. | $8,004 | 14 |
| Vanda Pharmaceuticals Inc. | $6,106 | 6 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$129,013 · 41 payments
- Travel and Lodging$20,371 · 96 payments
- Honoraria$11,800 · 5 payments
- Consulting Fee$4,080 · 2 payments
- Food and Beverage$3,922 · 61 payments
- Education$7.51 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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