Magdalena Barbara Sikora, M.D.
NPI 1598896110ActiveIndividual· Internal Medicine, Nephrology· Lawton, OK
Internal Medicine, Nephrology (M.D.) with Dallas Renal Group, P.A., practicing in Lawton, Oklahoma. 863 Medicare patients in 2024, $343,097 paid; nearly all of their 1,540 Part D prescriptions were generic (90%). Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $517.04 in all, mostly food and beverage. Lists Carnegie Tri-County Municipal Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1598896110 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 7, 2007 |
| Last updated in NPPES | Jan 15, 2026 |
| Certified by provider | Jan 15, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 28703 | 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 | 863 |
|---|---|
| Services billed | 5,847 across 21 procedure codes |
| Paid by Medicare | $343,097 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,540 · 3,419 30-day fills |
|---|---|
| Patients | 317 |
| Total drug cost | $148,951 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Dallas Renal Group, P.A.Dallas, TX · 53 clinicians
Hospital affiliations
- Carnegie Tri-County Municipal HospitalCarnegie, OK
- Duncan Regional Hospital, IncDuncan, OK
- Jackson County Memorial Hospital AuthorityAltus, OK
- Memorial HealthLawton, OK
- Southwestern Medical CenterLawton, OK
Other facilities
- Ara - Lawton DialysisDialysis facility · Lawton, OK
- Davita Duncan Dialysis CenterDialysis facility · Duncan, OK
- Davita Lawton DialysisDialysis facility · Lawton, OK
- Usrc AltusDialysis facility · Altus, OK
- Usrc Sooner DialysisDialysis facility · Lawton, OK
Industry payments (Open Payments)
- 2025$517.04 · 24 payments from 10 companies
- 2024$686.81 · 36 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $123.27 | 7 |
| Novartis Pharmaceuticals Corporation | $97.15 | 5 |
| Calliditas Therapeutics US Inc. | $64.63 | 2 |
| Ani Pharmaceuticals, Inc. | $56.17 | 2 |
| Akebia Therapeutics Inc | $48.40 | 2 |
What the 2025 payments were for
- Food and Beverage$515.38 · 23 payments
- Education$1.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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