James P. Wishau, M.D.
Internal Medicine Physician · Lake Mills, WI
James P. Wishau, M.D. is an internal medicine physician with a practice address in Lake Mills, Wisconsin, and NPI 1962414938, issued on Aug 11, 2006. Check the license (Wisconsin 24282, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- James P. Wishau
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 24282 WI
Self-reported in NPPES; status is on the state search - Practice location
- 200 E Tyranena Park RD, Lake Mills, WI 53551
- Phone
- (920) 648-8393
- Enumerated
- Aug 11, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (920) 648-3656
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 200 E Tyranena Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James P. Wishau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 24282Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
11 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
James P. Wishau among 2,078 internal medicine physician records in Wisconsin
James P. Wishau, M.D. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2023 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 internal medicine physician record lists a practice address in Lake Mills
They are 1 of the 91 NPPES records with a practice address in Lake Mills, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Lake Mills → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Muhammad Alkhan, MDJanesville, WI 535481114950813
- Stanley Gruhn, MDJanesville, WI 535481760437081
- Hassan Homida, MDJanesville, WI 535481073017695
- Denise Hunter, MDJanesville, WI 535481184663320
- Hafiz KhalidJanesville, WI 535481154757607
- Hyung Kim, MDJanesville, WI 535481457554511
- Amin Lakhdhir, M.D.Janesville, WI 535481356321970
- Mark Menet, MDJanesville, WI 535481699975086
Common questions
What is James P. Wishau, M.D.'s NPI number?
James P. Wishau, M.D.'s National Provider Identifier (NPI) is 1962414938, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James P. Wishau, M.D. located?
The NPPES record lists a practice address at 200 E Tyranena Park RD, Lake Mills, WI, 53551. Phone: (920) 648-8393. Providers update this record themselves, so call before visiting.
How can I verify James P. Wishau, M.D.'s license?
NPPES lists Wisconsin license number 24282, 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.
How much does James P. Wishau, M.D. prescribe under Medicare Part D?
In 2024, James P. Wishau, M.D. had 11 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.