NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Adam Joseph Diemar, BSW

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

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

National Provider Identifier

1386003903

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Adam Joseph Diemar
Credential BSW
Sex Male
Practice address 201 E Green St, Suite 500, Ithaca, NY, 14850
Phone (607) 274-6288
Fax (607) 274-6280
Enumeration date Feb 11, 2016
Last updated in NPPES Feb 11, 2016

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers 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 Adam Diemar practice?
The practice location on file with NPPES is in Ithaca, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Adam Diemar?
The National Provider Identifier (NPI) for Adam Diemar is 1386003903, 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 2016-02-11.