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International Diagnostic Solutions

Cognitive & Behavioral Psychologist in Washington, DC · enumerated 2015 · authorized official Tracey Ellis, Cofounder.

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

National Provider Identifier

1912397001

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Registry record

Entity type Organization (Type 2)
Legal business name International Diagnostic Solutions
Practice address 641 S St Nw, Third Floor, Washington, DC, 20001
Phone (202) 643-7462
Enumeration date Jan 28, 2015
Last updated in NPPES Nov 26, 2019

Taxonomy & classification

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Secondary
103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers Primary
225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers Secondary

Authorized official

Name Tracey Ellis
Title Cofounder
Phone (202) 202-6537

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

What type of organization is International Diagnostic Solutions?
International Diagnostic Solutions is registered in NPPES as a Cognitive & Behavioral Psychologist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-26.