Stephen Joseph Williams
Diagnostic Radiology Physician · Milwaukee, WI
Stephen Joseph Williams is a diagnostic radiology physician with a practice address in Milwaukee, Wisconsin, and NPI 1801356845, issued on Mar 25, 2019. Check the license (Wisconsin 75935, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Stephen Joseph Williams
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 75935 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Phone
- (414) 805-2060
- Enumerated
- Mar 25, 2019
- Record last updated
- Mar 29, 2024
- Fax
- (414) 259-9290
- Medicare enrollment
- Enrolled (PECOS I20240607000680); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,005 in Wisconsin → Look up another NPI →
Also registered at 9200 W Wisconsin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Faith Abodunrin, MDHematology & Oncology Physician1437768769
Verify Stephen Joseph Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 75935Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 4 group practices
- Froedtert Andthe Medical College OF Wisconsin Community Physicians IncWauwatosa, WI
- Prohealth Medical Group IncWaukesha, WI
- Radiology Waukesha SCWaukesha, WI
- The Medical College OF Wisconsin IncMilwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stephen Joseph Williams among 1,005 diagnostic radiology physician records in Wisconsin
Stephen Joseph Williams is one of 1,005 diagnostic radiology physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 89% of them.
- NPI issued2019 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2019 · median 2006 among the 664 with a school on file
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
226 diagnostic radiology physician records list a practice address in Milwaukee
They are 226 of the 18,389 NPPES records with a practice address in Milwaukee, and 1,005 diagnostic radiology physician records in Wisconsin.
All 1,005 in Wisconsin → Every provider in Milwaukee → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Guillermo Carrera, MDMilwaukee, WI 532261821049214
- Mary Beth Gonyo, MDMilwaukee, WI 532261649221441
- Lawrence Goodman, MDMilwaukee, WI 532261548211048
- David Gregg, MDMilwaukee, WI 532261134178601
- John Heighway, MDMilwaukee, WI 532261861469215
- Robert Hieb, MDMilwaukee, WI 532261578514022
- Michael Holt, MDMilwaukee, WI 532261700871266
- Brian Jellison, MDMilwaukee, WI 532261225016835
Common questions
What is Stephen Joseph Williams's NPI number?
Stephen Joseph Williams's National Provider Identifier (NPI) is 1801356845, issued on Mar 25, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Joseph Williams located?
The NPPES record lists a practice address at 9200 W Wisconsin Ave, Milwaukee, WI, 53226. Phone: (414) 805-2060. Providers update this record themselves, so call before visiting.
How can I verify Stephen Joseph Williams's license?
NPPES lists Wisconsin license number 75935, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.