Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mary Susan Thuillard
Counselor in Lagrange, IN · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1417401167
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Registry record
Entity type Individual (Type 1)
Name Mary Susan Thuillard
Sex Female
Practice address 2155 N State Road 9, Lagrange, IN, 46761
Phone (260) 463-7144
Fax (260) 463-7146
Enumeration date Aug 11, 2016
Last updated in NPPES Aug 11, 2016
Taxonomy & licenses
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Mary Thuillard?
Mary Thuillard is registered in NPPES with the primary taxonomy of Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Kimberly Luczkowski Clinical Social Worker · Lagrange, IN NPI 1700116738 Kelsie Deeds Clinical Social Worker · Lagrange, IN NPI 1336564905 Deneise Weyhmiller Social Worker · Lagrange, IN NPI 1083030126 Nicole Johnson-Smith Mental Health Counselor · Lagrange, IN NPI 1548816374 Kaitlin Shaffer Mental Health Counselor · Lagrange, IN NPI 1831964170
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-11.