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M. Therese Barrett, MD PC

Specialist in Longmont, CO · enumerated 2007 · authorized official Mary Barrett, Owner.

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

National Provider Identifier

1568669943

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Registry record

Entity type Organization (Type 2)
Legal business name M. Therese Barrett, MD PC
Other name <Unavail>
Practice address 231 E 9th Ave, Suite 1a, Longmont, CO, 80504
Phone (303) 651-2800
Fax (303) 774-9100
Enumeration date Jun 29, 2007
Last updated in NPPES Feb 16, 2010

Taxonomy & classification

174400000X Specialist Other Service Providers Primary

Authorized official

Name Mary Barrett
Title Owner
Phone (303) 651-2800

Other identifiers

Identifier Type State Issuer
1568669943 Other CO GROUP

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 M. Therese Barrett, MD PC?
M. Therese Barrett, MD PC is registered in NPPES as a Specialist (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 2010-02-16.