Eugene J. McMahon, MD
Clinical Pathology/Laboratory Medicine Physician · Wauwatosa, WI
Eugene J. McMahon, MD is a clinical pathology/laboratory medicine physician with a practice address in Wauwatosa, Wisconsin, and NPI 1518945237, issued on Jan 3, 2006. Check the license (Wisconsin 35412, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Eugene J. McMahon
- Credential
- MD
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- License number
- 35412 WI
Self-reported in NPPES; status is on the state search - Practice location
- 11020 W Plank CT, Wauwatosa, WI 53226
- Phone
- (414) 476-8122
- Enumerated
- Jan 3, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (414) 475-2975
- Entity
- Type 1 · individual
8 nearest clinical pathology/laboratory medicine physician records → All 80 in Wisconsin → Look up another NPI →
Also registered at 11020 W Plank CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anne Dayer, MDAnatomic Pathology & Clinical Pathology Physician1053398966
- Gerald Hanson, MDAnatomic Pathology & Clinical Pathology Physician1588641492
- Lyle Lawnicki, MDAnatomic Pathology & Clinical Pathology Physician1992783617
- Jinobya Machhi, MDAnatomic Pathology & Clinical Pathology Physician1174501894
- Jack Tenge, MDAnatomic Pathology & Clinical Pathology Physician1538147616
Verify Eugene J. McMahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 35412Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $30.23
1 payment: food and beverage; the largest payer was Ethicon US, LLC. The 177 providers of this specialty with any payment received $7,028.16 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Eugene J. McMahon among 80 clinical pathology/laboratory medicine physician records in Wisconsin
Eugene J. McMahon, MD is one of 80 clinical pathology/laboratory medicine physician records with a practice address in Wisconsin. 71% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 54% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2026 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0105X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Pathology/Laboratory Medicine Physician providers in Wisconsin
There are 80 clinical pathology/laboratory medicine physician records in Wisconsin.
All 80 in Wisconsin → Every provider in Wauwatosa → Clinical Pathology/Laboratory Medicine Physician nationwide →
The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes
- James Keating, MDMilwaukee, WI 532261275585010
- Sandor Kovacs, M.D.Milwaukee, WI 532261356795553
- Jorge Leon Colonna, M.D.Milwaukee, WI 532261588870554
- Alan Mast, MDMilwaukee, WI 532261619991205
- Chester Jablonski, MDPewaukee, WI 530721982703989
- Michael Phillips, M.D.Oconomowoc, WI 530661124001938
- Gerardo Fronda, M.D.Menomonee Falls, WI 530511457315160
- Barbara Earnest, M.D.Racine, WI 534051902827561
Common questions
What is Eugene J. McMahon, MD's NPI number?
Eugene J. McMahon, MD's National Provider Identifier (NPI) is 1518945237, issued on Jan 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eugene J. McMahon, MD located?
The NPPES record lists a practice address at 11020 W Plank CT, Wauwatosa, WI, 53226. Phone: (414) 476-8122. Providers update this record themselves, so call before visiting.
How can I verify Eugene J. McMahon, MD's license?
NPPES lists Wisconsin license number 35412, 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.