Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joshua B Theiss, LPC

Counselor in Belleville, IL · enumerated 2018.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1790273795

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Registry record

Entity type Individual (Type 1)

Name Joshua B Theiss

Credential LPC

Sex Male

Practice address 12 N 64th St, Belleville, IL, 62223

Phone (618) 877-4420

Fax (618) 397-0093

Enumeration date Apr 25, 2018

Last updated in NPPES Aug 10, 2020

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 180.009668 (IL) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 180.009668 (IL) Secondary

101Y00000X Counselor Behavioral Health & Social Service Providers · License 180009668 (IL) Primary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC 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.

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Frequently asked questions

Where does Joshua Theiss practice?

The practice location on file with NPPES is in Belleville, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Joshua Theiss?

The National Provider Identifier (NPI) for Joshua Theiss is 1790273795, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-10.