Leigh Nathan, MD Pllc

Leigh Nathan, MD Pllc is a healthcare organization registered as Adult Mental Health Clinic/Center in Madison, CT, holding Type 2 (organization) NPI 1013626761 since 2022. The authorized official on file is Leigh Nathan, Owner.

✓ Active NPI ✓ Valid NPI checksum

NPI	1013626761
Entity type	Organization (Type 2)
Legal business name	Leigh Nathan, MD Pllc
Practice address	85B WALL STREET, Madison, CT, 06443
Phone	8602220828
Enumeration date	2022-11-22
Last updated in NPPES	2022-11-22

Authorized official

Name	Leigh Nathan
Title	Owner
Phone	8602220828

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
261QM0850X	Adult Mental Health Clinic/Center	Primary	—	—

Copy-ready billing details

Provider: Leigh Nathan, MD Pllc
NPI: 1013626761
Taxonomy: 261QM0850X (Adult Mental Health Clinic/Center)
Address: 85B WALL STREET, Madison, CT, 06443

Verify this record

Cross-check NPI 1013626761 against the authoritative CMS record: view Leigh Nathan, MD Pllc on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2022-11-22. Verify at npiregistry.cms.hhs.gov.

Where is Leigh Nathan, MD Pllc located?

The practice location on file with NPPES is in Madison, CT.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-11-22.