David W. Mai, MD
Dermatology Physician · Mequon, WI
David W. Mai, MD is a dermatology physician with a practice address in Mequon, Wisconsin, and NPI 1275568669, issued on Jul 12, 2006. Check the license (Wisconsin 40773, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- David W. Mai
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 40773 WI
Self-reported in NPPES; status is on the state search - Practice location
- 12203 Corporate Pkwy, Mequon, WI 53092
- Phone
- (262) 387-8200
- Enumerated
- Jul 12, 2006
- Record last updated
- Jan 20, 2026
- Fax
- (262) 387-8271
- Medicaid ID
- 32529800 WI
- Medicare enrollment
- Enrolled (PECOS I20060123000699); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 325 in Wisconsin → Look up another NPI →
Also registered at 12203 Corporate Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shari Buske, D.P.M.Podiatrist1487682068
- Joseph Davies, MDOrthopaedic Surgery Physician1891754008
- Christine Davis, PAPhysician Assistant1679826812
- Andreas Doermann, MDPlastic Surgery Physician1093817496
- Mikhail Eiseler, DOFamily Medicine Physician1568843696
Verify David W. Mai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 40773Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average dermatology physician in 2024
994 Medicare Part D claims for 351 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Ketoconazole222 claims
- Triamcinolone Acetonide134 claims
- Clobetasol Propionate85 claims
- Valacyclovir57 claims
- Fluorouracil42 claims
- Metronidazole39 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.
Bills Medicare through one group practice
- Aurora Advanced Healthcare, Inc.Mequon, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David W. Mai among 325 dermatology physician records in Wisconsin
David W. Mai, MD is one of 325 dermatology physician records with a practice address in Wisconsin. 82% 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, 57% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1997 · median 2009 among the 228 with a school on file
- 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 207N00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Wisconsin
There are 325 dermatology physician records in Wisconsin.
All 325 in Wisconsin → Every provider in Mequon → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Anthony Bonfiglio, MDMequon, WI 530921144319104
- Lori Heinrich, MDMequon, WI 530921184719288
- Gabriela Morris, M.D.Mequon, WI 530921366936411
- Kevin Ciriacks, M.D.Sussex, WI 530891740675099
- Barry Hellman, MDWest Bend, WI 530951215044821
- Michael KnabelMequon, WI 530971295231769
- Elizabeth CookSlinger, WI 530861922637438
- Gary Rosenmeier, M.D.Slinger, WI 530861467534297
Common questions
What is David W. Mai, MD's NPI number?
David W. Mai, MD's National Provider Identifier (NPI) is 1275568669, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David W. Mai, MD located?
The NPPES record lists a practice address at 12203 Corporate Pkwy, Mequon, WI, 53092. Phone: (262) 387-8200. Providers update this record themselves, so call before visiting.
How can I verify David W. Mai, MD's license?
NPPES lists Wisconsin license number 40773, 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 David W. Mai, MD prescribe under Medicare Part D?
In 2024, David W. Mai, MD had 994 Medicare Part D claims for 351 beneficiaries; the average among dermatology physician prescribers was 797. 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.