David Mai, MD
NPI 1275568669 · Dermatology Physician · Mequon, WI
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Mai, MD is a Dermatology Physician provider in Mequon, WI (NPI 1275568669).
Provider details
- NPI number
- 1275568669
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 40773 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,795 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 1,969 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 682 | $85 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 556 | $56 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 155 | $120 |
| Destruction of Skin Growth, 1-14 Growths17110 | 103 | $101 |
| Destruction of Precancer Skin Growth, 15 Or More Growths17004 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 222 | 108 |
| Triamcinolone Acetonide | 134 | 85 |
| Clobetasol Propionate | 85 | 35 |
| Valacyclovir Hclbrand: Valacyclovir | 57 | 18 |
| Fluorouracil | 42 | 38 |
| Metronidazole | 39 | 26 |
| Econazole Nitrate | 32 | 12 |
| Minoxidil | 30 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-12
- Last updated
- 2026-01-20
- Certified
- 2026-01-20
Frequently asked questions
- What is David Mai's NPI number?
- David Mai's National Provider Identifier (NPI) is 1275568669, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Mai's specialty?
- David Mai is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is David Mai located?
- David Mai's practice location on file with NPPES is 12203 Corporate Pkwy, Mequon, WI 53092-3388.
- What is David Mai's phone number?
- The practice phone number listed in the NPPES registry for David Mai is (262) 387-8200.
- Does David Mai accept Medicare?
- David Mai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Mai's NPI active?
- Yes — David Mai's NPI (1275568669) is active in the NPPES registry as of the last update on 2026-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.