NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. James Dempsey, CASAC

Addiction (Substance Use Disorder) Counselor in Elmira, NY · enumerated 2016.

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

National Provider Identifier

1558720375

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. James Dempsey
Credential CASAC
Sex Male
Practice address 1149 Sullivan St, Elmira, NY, 14901
Phone (607) 733-7661
Fax (607) 733-7675
Enumeration date Feb 22, 2016
Last updated in NPPES Feb 22, 2016

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 18313 (NY) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does James Dempsey practice?
The practice location on file with NPPES is in Elmira, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for James Dempsey?
The National Provider Identifier (NPI) for James Dempsey is 1558720375, 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 2016-02-22.