Giovanni Villegas, DO
NPI 1629607908ActiveIndividual· Psychiatry & Neurology, Psychiatry· Riverside, CA
Psychiatry & Neurology, Psychiatry (DO) with Nebula Health, LLC, practicing in Riverside, California. Their prescriptions cost Medicare Part D more than their services did: $106,145 for 1,837 claims, against $7,373 paid for services in 2024. Teva Pharmaceuticals USA, Inc. reported $295.59 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1629607908 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Apr 7, 2020 |
| Last updated in NPPES | Nov 1, 2026 |
| Certified by provider | Nov 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 20A22304 | CA |
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 - Psychiatry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 15 |
|---|---|
| Services billed | 73 across 3 procedure codes |
| Paid by Medicare | $7,373 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,837 · 2,481 30-day fills |
|---|---|
| Patients | 338 |
| Total drug cost | $106,145 |
| Generic share | 97% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Psychiatry |
Medical group
- Nebula Health, LLCMission Viejo, CA · 20 clinicians
Industry payments (Open Payments)
- 2025$295.59 · 11 payments from 1 company
- 2024$144.64 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Teva Pharmaceuticals USA, Inc. | $295.59 | 11 |
What the 2025 payments were for
- Food and Beverage$295.59 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 153 psychiatrists in Riverside · All psychiatrists in California