Michael J. Phillips, M.D.
Clinical Pathology/Laboratory Medicine Physician · Oconomowoc, WI
Michael J. Phillips, M.D. is a clinical pathology/laboratory medicine physician with a practice address in Oconomowoc, Wisconsin, and NPI 1124001938, issued on Nov 25, 2005. Check the license (Wisconsin 20932-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael J. Phillips
- Credential
- M.D.
- Primary taxonomy
- Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
- License number
- 20932-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 791 E Summit Ave, Oconomowoc, WI 53066
- Phone
- (262) 569-0619
- Enumerated
- Nov 25, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (262) 569-0697
- Medicaid ID
- 30427100 WI
- Entity
- Type 1 · individual
8 nearest clinical pathology/laboratory medicine physician records → All 80 in Wisconsin → Look up another NPI →
Also registered at 791 E Summit Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Ceschi, M.D.Anesthesiology Physician1710960422
- Howard Elconin, M.D.Anesthesiology Physician1447233374
- Timothy Hill, M.D.Emergency Medicine Physician1861478430
- Raina Hollenbaugh, M.D.Anesthesiology Physician1437132248
- Palmira Janusonis, M.D.Anesthesiology Physician1194708644
- Catherine Keulks-Torinus, P.A.C.Physician Assistant1114903481
Verify Michael J. Phillips in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 20932-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average clinical pathology/laboratory medicine physician in 2024
28 Medicare Part D claims, against an average of 34 among the 37 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
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.
Michael J. Phillips among 80 clinical pathology/laboratory medicine physician records in Wisconsin
Michael J. Phillips, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% 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 Oconomowoc → Clinical Pathology/Laboratory Medicine Physician nationwide →
The 8 clinical pathology/laboratory medicine physician records with the nearest ZIP codes
- Chester Jablonski, MDPewaukee, WI 530721982703989
- Gerardo Fronda, M.D.Menomonee Falls, WI 530511457315160
- 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
- Eugene McMahon, MDWauwatosa, WI 532261518945237
- Barbara Earnest, M.D.Racine, WI 534051902827561
Common questions
What is Michael J. Phillips, M.D.'s NPI number?
Michael J. Phillips, M.D.'s National Provider Identifier (NPI) is 1124001938, issued on Nov 25, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Phillips, M.D. located?
The NPPES record lists a practice address at 791 E Summit Ave, Oconomowoc, WI, 53066. Phone: (262) 569-0619. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Phillips, M.D.'s license?
NPPES lists Wisconsin license number 20932-020, 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 Michael J. Phillips, M.D. prescribe under Medicare Part D?
In 2024, Michael J. Phillips, M.D. had 28 Medicare Part D claims; the average among clinical pathology/laboratory medicine physician prescribers was 34. 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.