Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marilyn Jane Griffiths, T.L.L.P.
Psychologist in Saint Joseph, MI · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1659675189
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Registry record
Entity type Individual (Type 1)
Name Marilyn Jane Griffiths
Credential T.L.L.P.
Sex Female
Practice address 211 Hilltop Rd, Ste. H, Saint Joseph, MI, 49085
Phone (269) 326-0659
Enumeration date Dec 23, 2010
Last updated in NPPES Dec 23, 2010
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License 6301014082 (MI) Primary
103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers · License 6301014082 (MI) Secondary
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 Marilyn Griffiths practice?
The practice location on file with NPPES is in Saint Joseph, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marilyn Griffiths?
The National Provider Identifier (NPI) for Marilyn Griffiths is 1659675189, 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 2010-12-23.