William B. Weems, MD
NPI 1003856295ActiveIndividual· Anesthesiology· Rockford, IL
Anesthesiology (MD) in Rockford, Illinois, trained at University of Chicago, Pritzker School of Medicine (class of 1996). Medicare paid $9,924 for services to 68 patients in 2024. Merck Sharp & Dohme LLC reported $16.13 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1003856295 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 7, 2006 |
| Last updated in NPPES | Jun 26, 2026 |
| Certified by provider | Jun 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 036101350 | IL |
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 - Anesthesiology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 68 |
|---|---|
| Services billed | 99 across 24 procedure codes |
| Paid by Medicare | $9,924 |
Education and affiliations
| Medical school | University of Chicago, Pritzker School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Anesthesiology |
Medical groups
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
- Orthomidwest, PLLCRockford, IL · 547 clinicians
- Rockford Health PhysiciansRockford, IL · 521 clinicians
- North American Partners in Anesthesia Illinois LLCBerwyn, IL · 431 clinicians
- Blessing HospitalQuincy, IL · 421 clinicians
Hospital affiliations
- Advocate Sherman HospitalElgin, IL
- Javon Bea HospitalRockford, IL
- Saint Joseph Medical CenterJoliet, IL
Industry payments (Open Payments)
- 2024$16.13 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $16.13 | 1 |
What the 2024 payments were for
- Food and Beverage$16.13 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 47 anesthesiologists in Rockford · All anesthesiologists in Illinois