Dr. William Small JR., M.D.
Radiation Oncology (Radiation Oncology Physician)
251 E Huron St, Galter Pavillion
Chicago, IL 60611
Who else practices at this address →
Cook County includes primary care (3% of residents) and mental health (4% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Northwestern University Feinberg Medical School (1990)
- Years since graduation
- 36
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 202
Licensed in Illinois since 1992, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1990Medical school: Northwestern University Feinberg Medical School
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Radiation Oncology Physician primary
IL license 036084648 (first issued 1992; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Loyola University Medical Center Maywood, IL
- Loyola Gottlieb Memorial Hospital Melrose PArk, IL
Medical groups
- Loyola University Medical Center (953 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 202
- Services billed
- 942
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 297 | 24 |
| Ct guidance for insertion of radiation therapy fields | 274 | 33 |
| Calculation of radiation therapy dose | 156 | 36 |
| Radiation treatment management, 5 treatment sessions | 132 | 33 |
| Design and construction of complex radiation treatment device | 121 | 31 |
| Established patient office or other outpatient visit, 30-39 minutes | 107 | 91 |
| Established patient office or other outpatient visit, 40-54 minutes | 90 | 72 |
| Complex radiation therapy planning | 30 | 30 |
| Obtaining data needed to develop the optimal radiation treatment, 1 treatment area | 29 | 17 |
| Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved | 23 | 22 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 6 companies reported 17 payments worth $10,230 in total to this clinician.
| Siemens Medical Solutions USA, Inc. | $6,177 |
|---|---|
| Novocure Inc. | $2,140 |
| GlaxoSmithKline, LLC. | $1,600 |
| Reflexion Medical, Inc. | $152 |
| Accuray Incorporated | $121 |
| Carl Zeiss Meditec USA, Inc. | $40.23 |
| Consulting Fee | $8,240 |
|---|---|
| Travel and Lodging | $1,078 |
| Food and Beverage | $911 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Siemens Medical Solutions USA, Inc. Nov 5, 2025 | Consulting Fee | $4,500 |
| GlaxoSmithKline, LLC. Jul 10, 2025 | Consulting Fee | $1,600 |
| Novocure Inc. Feb 20, 2025 | Consulting Fee | $1,200 |
| Novocure Inc. Nov 26, 2025 | Consulting Fee | $940 |
| Siemens Medical Solutions USA, Inc. Nov 5, 2025 | Travel and Lodging travel to PALO ALTO, CA | $386 |
| Siemens Medical Solutions USA, Inc. Nov 5, 2025 | Travel and Lodging travel to PALO ALTO, CA | $375 |
| Siemens Medical Solutions USA, Inc. Nov 5, 2025 | Travel and Lodging travel to PALO ALTO, CA | $317 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 1 industry-funded study in 2025, from 1 company. The companies reported $8,850 in research payments for these studies, mostly to the institutions running them.
- EF-27 Pivotal, randomized, open-label study of Tumor Treating Fields (TTFields, 150kHz) concomitant with gemcitabine and nab-paclitaxel for front-line treatment of locally-advanced pancreatic adenocarcinoma
Novocure Inc.
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.