G. Thomas Ruiz, MD
NPI 1518967330ActiveIndividual· Obstetrics & Gynecology· Fountain Valley, CA
Obstetrics & Gynecology (MD) in Fountain Valley, California, trained at University of California, Irvine, California College of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $13,915 for 125 claims, against $2,153 paid for services in 2024. Abbvie Inc. reported $35.42 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1518967330 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 22, 2005 |
| Last updated in NPPES | Oct 14, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | G69184 | 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 - Obstetrics/Gynecology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 19 |
|---|---|
| Services billed | 32 across 11 procedure codes |
| Paid by Medicare | $2,153 |
Part D prescriptions in 2024
| Prescriptions (claims) | 125 · 286 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $13,915 |
| Generic share | 69% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Industry payments (Open Payments)
- 2025$35.42 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $35.42 | 2 |
What the 2025 payments were for
- Food and Beverage$35.42 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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