Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Colin M Rak-Dietz, PHD, HSPP
Psychologist in Carmel, IN · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1396028528
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Registry record
Entity type Individual (Type 1)
Name Colin M Rak-Dietz
Credential PHD, HSPP
Sex Male
Practice address 1905 S New Market St Ste 260, Carmel, IN, 46032
Phone (317) 564-9797
Fax (877) 401-3034
Enumeration date Sep 23, 2011
Last updated in NPPES Jan 7, 2023
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 00000000A (IN) Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
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
What is the NPI number for Colin Rak-Dietz?
The National Provider Identifier (NPI) for Colin Rak-Dietz is 1396028528, a Type 1 (individual) record in the CMS NPPES registry.
Where does Colin Rak-Dietz practice?
The practice location on file with NPPES is in Carmel, IN. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-07.