Michael S. Messer, D.D.S.
Dentist · Oconomowoc, WI
Michael S. Messer, D.D.S. is a dentist with a practice address in Oconomowoc, Wisconsin, and NPI 1518278233, issued on Jun 28, 2010. Check the license (Wisconsin 6550-015, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael S. Messer
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 6550-015 WI
Self-reported in NPPES; status is on the state search - Practice location
- 888 Thackeray Trl, Oconomowoc, WI 53066
- Phone
- (262) 567-6003
- Enumerated
- Jun 28, 2010
- Record last updated
- Feb 9, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (262) 567-6001
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,750 in Wisconsin → Look up another NPI →
Also registered at 888 Thackeray Trl
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rita Brafford, LCSW, CADC-DMental Health Counselor1700992708
- Brady Dorn, DCChiropractor1124170675
- Michael Janowak, MDOtolaryngology Physician1285601070
- Kyle Kircher, M.D.Family Medicine Physician1639155872
- Gerard Kupperman, PH.D.Audiologist1245321215
- William Longe, D.D.S.General Practice Dentistry1013136381
Verify Michael S. Messer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 6550-015Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average dentist in 2024
75 Medicare Part D claims for 51 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin29 claims
- Clindamycin Hcl11 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 S. Messer among 1,750 dentist records in Wisconsin
Michael S. Messer, D.D.S. is one of 1,750 dentist records with a practice address in Wisconsin. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 48% of them.
- NPI issued2010 · 48% of these records are older, 49% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2012 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 dentist records list a practice address in Oconomowoc
They are 17 of the 506 NPPES records with a practice address in Oconomowoc, and 1,750 dentist records in Wisconsin.
All 1,750 in Wisconsin → Every provider in Oconomowoc → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- John Bitner, D.D.S.Oconomowoc, WI 530661366695710
- Kelsey Chin, DDSOconomowoc, WI 530661073131348
- Judie Cotey, DDSOconomowoc, WI 530661932267622
- Mark Grevlich, DDSOconomowoc, WI 530661245498641
- Charles Holsen, DDSOconomowoc, WI 530661881703965
- James Leaman, DDSOconomowoc, WI 530661306970264
- Matthew Lehman, DDSOconomowoc, WI 530661417079690
- Allison Lehman, DDSOconomowoc, WI 530661194086488
Common questions
What is Michael S. Messer, D.D.S.'s NPI number?
Michael S. Messer, D.D.S.'s National Provider Identifier (NPI) is 1518278233, issued on Jun 28, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Messer, D.D.S. located?
The NPPES record lists a practice address at 888 Thackeray Trl, Oconomowoc, WI, 53066. Phone: (262) 567-6003. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Messer, D.D.S.'s license?
NPPES lists Wisconsin license number 6550-015, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Michael S. Messer, D.D.S. prescribe under Medicare Part D?
In 2024, Michael S. Messer, D.D.S. had 75 Medicare Part D claims for 51 beneficiaries; the average among dentist prescribers was 86. 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.