Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
James Raymond Tumidanski
Social Worker in Vassar, MI · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578748786
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Registry record
Entity type Individual (Type 1)
Name James Raymond Tumidanski
Sex Male
Practice address 150 Enterprise Dr, Vassar, MI, 48768
Phone (734) 564-4091
Enumeration date Jan 7, 2008
Last updated in NPPES Jan 7, 2008
Taxonomy & licenses
101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 200723 (MI) Secondary
101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License S-00055 (MI) Secondary
104100000X Social Worker Behavioral Health & Social Service Providers · License 6802079385 (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
What is the NPI number for James Tumidanski?
The National Provider Identifier (NPI) for James Tumidanski is 1578748786, a Type 1 (individual) record in the CMS NPPES registry.
Where does James Tumidanski practice?
The practice location on file with NPPES is in Vassar, MI. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Wolverine Human Services Children's Substance Abuse Rehabilitation Facility · Vassar, MI NPI 1891978441 Katrina Brock Clinical Social Worker · Vassar, MI NPI 1285819532 James Furbush Social Worker · Vassar, MI NPI 1285819482 Michael Buck Clinical Social Worker · Vassar, MI NPI 1972788198 Keith Asbury Social Worker · Vassar, MI NPI 1316122534 Gina Zerka Clinical Social Worker · Vassar, MI NPI 1467638304 Roy Brewer Addiction (Substance Use Disorder) Counselor · Vassar, MI NPI 1316123938 Andreas Parsley Addiction (Substance Use Disorder) Counselor · Vassar, MI NPI 1306022926
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-07.