Sumbal Nabi, MD
NPI 1255472122ActiveIndividual· Internal Medicine, Medical Oncology· Enid, OK
Internal Medicine, Medical Oncology (MD) with Integris Ambulatory Care Corporation, practicing in Enid, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $2,014,581 for 1,499 claims, against $158,165 paid for services in 2024. Janssen Biotech, Inc. was the largest of 12 companies reporting payments in 2025, $481.00 in all, mostly food and beverage. Lists Integris Baptist Medical Center, Inc and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1255472122 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 12, 2007 |
| Last updated in NPPES | Mar 6, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 40297 | 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 - Hematology/Oncology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 618 |
|---|---|
| Services billed | 1,916 across 10 procedure codes |
| Paid by Medicare | $158,165 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,499 · 2,053 30-day fills |
|---|---|
| Patients | 239 |
| Total drug cost | $2,014,581 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- Integris Ambulatory Care CorporationSpencer, OK · 685 clinicians
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Integris Health Enid HospitalEnid, OK
- Integris Health Ponca CityPonca City, OK
- Integris Health Woodward HospitalWoodward, OK
- St Mary's Regional Medical CenterEnid, OK
Other facilities
- Elara Caring VHome health agency · Enid, OK
Industry payments (Open Payments)
- 2025$481.00 · 19 payments from 12 companies
- 2024$356.55 · 16 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $100.07 | 4 |
| Intuitive Surgical, Inc. | $73.96 | 1 |
| Genzyme Corporation | $61.89 | 3 |
| Pfizer Inc. | $57.51 | 2 |
| Sumitomo Pharma America, Inc. | $42.00 | 2 |
What the 2025 payments were for
- Food and Beverage$408.35 · 16 payments
- Education$72.65 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records