Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Martin J Haanstad, PHD
Psychologist in Appleton, WI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235123225
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Registry record
Entity type Individual (Type 1)
Name Martin J Haanstad
Credential PHD
Sex Male
Practice address 1531 S Madison St, Appleton, WI, 54915
Phone (920) 730-4411
Enumeration date Sep 6, 2005
Last updated in NPPES Sep 2, 2008
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 39073500 | Medicaid | WI | - |
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 Martin Haanstad practice?
The practice location on file with NPPES is in Appleton, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Martin Haanstad?
The National Provider Identifier (NPI) for Martin Haanstad is 1235123225, 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 2008-09-02.