John Hamer, MD
Neuroradiology Physician · Milwaukee, WI
John Hamer, MD is a neuroradiology physician with a practice address in Milwaukee, Wisconsin, and NPI 1093763864, issued on May 4, 2006. Check the license (Wisconsin 42453, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Hamer
- Credential
- MD
- Primary taxonomy
- Neuroradiology Physician 2085N0700X
- License number
- 42453 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
- May 4, 2006
- Record last updated
- Feb 25, 2022
- Fax
- (414) 259-9290
- Medicaid IDs
- 1093763864 WI
34643100 WI - Medicare enrollment
- Enrolled (PECOS I20050628001262); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1999
- Entity
- Type 1 · individual
8 nearest neuroradiology physician records → All 38 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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Verify John Hamer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 42453Check 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 2 group practices
- Froedtert Andthe Medical College OF Wisconsin Community Physicians IncWauwatosa, 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).
John Hamer among 38 neuroradiology physician records in Wisconsin
John Hamer, MD is one of 38 neuroradiology physician records with a practice address in Wisconsin. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 47% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated1999 · median 2003 among the 32 with a school on file
- Record last updated2022 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085N0700X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neuroradiology Physician providers in Wisconsin
There are 38 neuroradiology physician records in Wisconsin.
All 38 in Wisconsin → Every provider in Milwaukee → Neuroradiology Physician nationwide →
The 8 neuroradiology physician records with the nearest ZIP codes
- Daniel Destiche, MDMilwaukee, WI 532261700381316
- Vladimir Ivanovic, M.D.Milwaukee, WI 532261578542767
- Leighton Mark, MDMilwaukee, WI 532261114970852
- David Polinger-Hyman, MDMilwaukee, WI 532261083821300
- Scott Rand, MDMilwaukee, WI 532261932151636
- James Strottmann, MDMilwaukee, WI 532261770534455
- Elaine Tanhehco, M.D.Milwaukee, WI 532261508228206
- Erik Skulborstad, M.D.St Francis, WI 532351831494996
Common questions
What is John Hamer, MD's NPI number?
John Hamer, MD's National Provider Identifier (NPI) is 1093763864, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Hamer, MD 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 John Hamer, MD's license?
NPPES lists Wisconsin license number 42453, 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.