Osama Methqal Ahmad Diab, M.D
NPI 1528443397ActiveIndividual· Internal Medicine, Hematology & Oncology· Westwood, KS
Internal Medicine, Hematology & Oncology (M.D) in Westwood, Kansas, trained at Kansas City University of Physicians and Surgeons (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $1,986,992 for 678 claims, against $147,074 paid for services in 2024. Daiichi Sankyo Inc. was the largest of 2 companies reporting payments in 2025, $146.13 in all, mostly food and beverage.
Overview
| NPI | 1528443397 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Jul 22, 2015 |
| Last updated in NPPES | Jul 11, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 94-09444 | KS |
| Internal Medicine | 207R00000X | 7572 | NE |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Radiation Oncology (KS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 443 |
|---|---|
| Services billed | 2,686 across 24 procedure codes |
| Paid by Medicare | $147,074 |
Part D prescriptions in 2024
| Prescriptions (claims) | 678 · 892 30-day fills |
|---|---|
| Patients | 138 |
| Total drug cost | $1,986,992 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | Kansas City University of Physicians and Surgeons |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical group
- Topeka Physician Group LLCTopeka, KS · 149 clinicians
Hospital affiliations
- Coffey County HospitalBurlington, KS
- Great Plains of SabethaSabetha, KS
- Holton Community HospitalHolton, KS
- Stormont Vail HospitalTopeka, KS
- University of Kansas Health System - St Francis CampusTopeka, KS
Industry payments (Open Payments)
- 2025$146.13 · 2 payments from 2 companies
- 2024$196.76 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Daiichi Sankyo Inc. | $117.75 | 1 |
| Merck Sharp & Dohme LLC | $28.38 | 1 |
What the 2025 payments were for
- Food and Beverage$146.13 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology & Oncology providers in Westwood
- 1720426885
- 1972575488
- 1023767555
- 1992798839
- 1083288112
- 1093248494
- 1700441771
- 1376040634
- 1013594829
- 1316031982
- 1710559901
- 1063154912
All Internal Medicine, Hematology & Oncology providers in Kansas →