Bassam I. Mattar, MD
NPI 1053372649ActiveIndividual· Internal Medicine, Hematology & Oncology· Wichita, KS
Internal Medicine, Hematology & Oncology (MD) with Cancer Center of Kansas PA, practicing in Wichita, Kansas. In 2024 Medicare paid $13,800,548 for 1,637 patients, and Part D covered 3,780 of their prescriptions, 87% of them generic. Glaxosmithkline, LLC. was the largest of 47 companies reporting payments in 2025, $41,260 in all, mostly consulting fees. Lists Ascension Via Christi Hospitals Wichita, Inc. and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1053372649 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 31, 2006 |
| Last updated in NPPES | Apr 1, 2026 |
| Certified by provider | Apr 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 0427872 | KS |
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 (KS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,637 |
|---|---|
| Services billed | 740,012 across 224 procedure codes |
| Paid by Medicare | $13,800,548 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,780 · 5,084 30-day fills |
|---|---|
| Patients | 534 |
| Total drug cost | $5,621,627 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Hematology/Oncology |
Medical group
- Cancer Center of Kansas PAWichita, KS · 30 clinicians
Hospital affiliations
- Ascension Via Christi Hospitals Wichita, Inc.Wichita, KS
- Hillsboro Community HospitalHillsboro, KS
- Kingman Healthcare CenterKingman, KS
- Nmc HealthNewton, KS
- St Luke Hospital & Living CenterMarion, KS
Industry payments (Open Payments)
- 2025$41,260 · 200 payments from 47 companies
- 2024$57,645 · 230 payments from 42 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $10,855 | 16 |
| E.R. Squibb & Sons, L.L.C. | $8,242 | 17 |
| Daiichi Sankyo Inc. | $5,365 | 9 |
| Astrazeneca Pharmaceuticals LP | $4,431 | 8 |
| Takeda Pharmaceuticals U.S.A., Inc. | $3,095 | 3 |
What the 2025 payments were for
- Consulting Fee$25,600 · 15 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$11,420 · 7 payments
- Food and Beverage$2,913 · 172 payments
- Travel and Lodging$1,276 · 3 payments
- Education$51.48 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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