Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
David W Mai, MD
Dermatology Physician in Mequon, WI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275568669
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Registry record
Entity type Individual (Type 1)
Name David W Mai
Credential MD
Sex Male
Practice address 12203 Corporate Pkwy, Mequon, WI, 53092
Phone (262) 387-8200
Fax (262) 387-8271
Enumeration date Jul 12, 2006
Last updated in NPPES Jan 20, 2026
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 32529800 | Medicaid | WI | - |
| P00449572 | Other | WI | RR MEDICARE |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does David Mai practice?
The practice location on file with NPPES is in Mequon, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for David Mai?
The National Provider Identifier (NPI) for David Mai is 1275568669, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-20.