William Gaya, M.D.
NPI 1821183401ActiveIndividual· Psychiatry & Neurology, Neurology· Ocala, FL
Psychiatry & Neurology, Neurology (M.D.) in Ocala, Florida, trained at University of Puerto Rico School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $1,310,792 for 6,015 claims, against $178,998 paid for services in 2024. Abbvie Inc. was the largest of 6 companies reporting payments in 2025, $386.08 in all, mostly food and beverage.
Overview
| NPI | 1821183401 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 3, 2006 |
| Last updated in NPPES | Apr 14, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | ME73584 | FL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurology (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,053 |
|---|---|
| Services billed | 1,796 across 17 procedure codes |
| Paid by Medicare | $178,998 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,015 · 15,353 30-day fills |
|---|---|
| Patients | 1,263 |
| Total drug cost | $1,310,792 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of Puerto Rico School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Neurology |
Medical group
- Cora Health Services IncThe Villages, FL · 1,136 clinicians
Hospital affiliations
- Adventhealth OcalaOcala, FL
- Adventhealth TampaTampa, FL
- Marion Communtiy HospitalOcala, FL
Other facilities
- Angels Care Home HealthHome health agency · Clermont, FL
- Brooks Rehabilitation Home HealthHome health agency · Palatka, FL
- Concierge Home CareHome health agency · Ocala, FL
- HCA Florida Healthcare at HomeHome health agency · The Villages, FL
- Trilogy Home HealthcareHome health agency · Ocala, FL
Industry payments (Open Payments)
- 2025$386.08 · 15 payments from 6 companies
- 2024$334.86 · 9 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $167.90 | 6 |
| E.R. Squibb & Sons, L.L.C. | $90.69 | 1 |
| Lundbeck LLC | $61.06 | 4 |
| Pfizer Inc. | $35.47 | 2 |
| Livanova USA, Inc. | $17.50 | 1 |
What the 2025 payments were for
- Food and Beverage$386.08 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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