Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Cardiac & Thoracic Surgical Assoc.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in West Hartford, CT · enumerated 2005 · authorized official Timothy Lehmann, M.D..

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

National Provider Identifier

1336131358

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Registry record

Entity type Organization (Type 2)

Legal business name Cardiac & Thoracic Surgical Assoc.

Practice address 345 N Main St, 1st Floor, West Hartford, CT, 06117

Phone (860) 244-2300

Fax (860) 278-1507

Enumeration date Aug 16, 2005

Last updated in NPPES Feb 1, 2016

Taxonomy & classification

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Timothy Lehmann

Title M.D.

Phone (860) 244-2300

Other identifiers

Identifier	Type	State	Issuer
004209707	Medicaid	CT	-

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

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.

What type of organization is Cardiac & Thoracic Surgical Assoc.?

Cardiac & Thoracic Surgical Assoc. is registered in NPPES as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-01.