Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Elizabeth Aaron

Clinical Psychologist in Old Greenwich, CT · enumerated 2025.

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

National Provider Identifier

1124909981

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Elizabeth Aaron

Sex Female

Practice address 1445 E Putnam Ave Ste 2, Old Greenwich, CT, 06870

Phone (203) 622-8600

Enumeration date Sep 9, 2025

Last updated in NPPES Sep 9, 2025

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 5199 (CT) 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 Elizabeth Aaron practice?

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

What is the NPI number for Elizabeth Aaron?

The National Provider Identifier (NPI) for Elizabeth Aaron is 1124909981, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Brad Gilden Physical Therapist · Old Greenwich, CT NPI 1912186966 Alison Lomazow Speech-Language Pathologist · Old Greenwich, CT NPI 1578800553 Adam Czaplinski Physical Therapist · Old Greenwich, CT NPI 1942928361 Tavia Taylor Behavior Technician · Old Greenwich, CT NPI 1285511162 Nicholas Orrico Behavior Technician · Old Greenwich, CT NPI 1043187990

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