Gigi J. Toma, M.D.
NPI 1770684037ActiveIndividual· Internal Medicine, Nephrology· Oklahoma City, OK
Internal Medicine, Nephrology (M.D.) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $635,892 for 2,660 claims, against $226,569 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 11 companies reporting payments in 2025, $607.17 in all, mostly food and beverage.
Overview
| NPI | 1770684037 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 26, 2006 |
| Last updated in NPPES | May 1, 2024 |
| Certified by provider | May 1, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 16522 | OK |
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 - Nephrology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 436 |
|---|---|
| Services billed | 2,201 across 22 procedure codes |
| Paid by Medicare | $226,569 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,660 · 6,392 30-day fills |
|---|---|
| Patients | 335 |
| Total drug cost | $635,892 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Elkview General HospitalHobart, OK
- Ssm Health St Anthony Hospital - MidwestMidwest City, OK
- Ssm Health St Anthony Hospital - Oklahoma CityOklahoma City, OK
- Ssm Health St Anthony Hospital - ShawneeShawnee, OK
- Weatherford Regional Hospital, Inc of WeatherfordWeatherford, OK
Other facilities
- Fmcna - Heritage ParkDialysis facility · Midwest City, OK
- Fmcna - Se OklahomaDialysis facility · Oklahoma City, OK
- Fmcna - Yukon JvDialysis facility · Yukon, OK
Industry payments (Open Payments)
- 2025$607.17 · 40 payments from 11 companies
- 2024$627.58 · 52 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $186.35 | 19 |
| Travere Therapeutics, Inc. | $91.96 | 4 |
| Ani Pharmaceuticals, Inc. | $60.90 | 3 |
| Novo Nordisk Inc | $49.42 | 3 |
| Fresenius USA Marketing, Inc. | $40.86 | 2 |
What the 2025 payments were for
- Food and Beverage$607.17 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 65 nephrologists in Oklahoma City · All nephrologists in Oklahoma