William David Bloomer, M.D.
NPI 1033158639ActiveIndividual· Specialist· Evanston, IL
Specialist (M.D.) in Evanston, Illinois, trained at Jefferson Medical College of Thomas Jefferson University (class of 1970). 191 Medicare patients in 2024, $238,126 paid; all of their 74 Part D prescriptions were generic. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $267.18 in all, mostly food and beverage.
Overview
| NPI | 1033158639 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 6, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | — | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 191 |
|---|---|
| Services billed | 3,501 across 27 procedure codes |
| Paid by Medicare | $238,126 |
Part D prescriptions in 2024
| Prescriptions (claims) | 74 · 132 30-day fills |
|---|---|
| Patients | 32 |
| Total drug cost | $1,017 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1970 |
| Medicare specialty | Radiation Oncology |
| Secondary specialties | Nuclear Medicine |
Medical group
- Radiation Medicine InstituteEvanston, IL · 4 clinicians
Hospital affiliations
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Swedish HospitalChicago, IL
Industry payments (Open Payments)
- 2025$267.18 · 2 payments from 2 companies
- 2024$233.51 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $146.58 | 1 |
| Regeneron Healthcare Solutions, Inc. | $120.60 | 1 |
What the 2025 payments were for
- Food and Beverage$267.18 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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