NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Dennis Richard Casey, MA, LCMHC

Addiction (Substance Use Disorder) Counselor in St Johnsbury, VT · enumerated 2007.

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

National Provider Identifier

1578780615

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Dennis Richard Casey
Credential MA, LCMHC
Sex Male
Practice address St Johnsbury, VT, 05819
Fax (802) 748-5416
Enumeration date Apr 19, 2007
Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 000038 (VT) Primary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 068-0000369 (VT) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Dennis Casey practice?
The practice location on file with NPPES is in St Johnsbury, VT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Dennis Casey?
The National Provider Identifier (NPI) for Dennis Casey is 1578780615, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.