Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Gerda T Mah, MA LLP
Clinical Psychologist in Troy, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1386754117
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Registry record
Entity type Individual (Type 1)
Name Ms. Gerda T Mah
Credential MA LLP
Sex Female
Practice address 888 W Big Beaver Rd, 1450, Troy, MI, 48084
Phone (248) 244-8644
Fax (248) 244-1330
Enumeration date Aug 30, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 6301000810 (MI) Primary
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 Gerda Mah practice?
The practice location on file with NPPES is in Troy, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Gerda Mah?
The National Provider Identifier (NPI) for Gerda Mah is 1386754117, 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 2007-07-08.