Betcy Thomachan, MD
NPI 1518070549ActiveIndividual· Internal Medicine, Nephrology· Tulsa, OK
Internal Medicine, Nephrology (MD) with Nephrology Associates, Inc., practicing in Tulsa, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $148,637 for 909 claims, against $83,017 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 14 companies reporting payments in 2025, $751.67 in all, mostly food and beverage. Lists Ascension St John Jane Phillips and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1518070549 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 16, 2006 |
| Last updated in NPPES | Feb 4, 2025 |
| Certified by provider | Feb 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 22677 | 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); Practitioner - Nephrology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 267 |
|---|---|
| Services billed | 620 across 16 procedure codes |
| Paid by Medicare | $83,017 |
Part D prescriptions in 2024
| Prescriptions (claims) | 909 · 1,632 30-day fills |
|---|---|
| Patients | 164 |
| Total drug cost | $148,637 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Nephrology Associates, Inc.Tulsa, OK · 25 clinicians
Hospital affiliations
- Ascension St John Jane PhillipsBartlesville, OK
- Ascension St John Medical CenterTulsa, OK
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK
- Coffeyville Regional Medical Center, IncCoffeyville, KS
- Saint Francis Hospital MuskogeeMuskogee, OK
Other facilities
- Fmcna - Jane PhillipsDialysis facility · Bartlesville, OK
Industry payments (Open Payments)
- 2025$751.67 · 33 payments from 14 companies
- 2024$566.38 · 32 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $147.17 | 7 |
| Travere Therapeutics, Inc. | $111.02 | 4 |
| Astrazeneca Pharmaceuticals LP | $88.61 | 4 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $70.73 | 4 |
| Calliditas Therapeutics US Inc. | $56.25 | 2 |
What the 2025 payments were for
- Food and Beverage$751.67 · 33 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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