Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brigid Carlson, M.D.

Cardiovascular Disease Physician in Worcester, MA · enumerated 2007.

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

National Provider Identifier

1366595225

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Registry record

Entity type Individual (Type 1)

Name Brigid Carlson

Credential M.D.

Sex Female

Practice address 55 Lake Ave N, Worcester, MA, 01655

Phone (508) 334-3452

Enumeration date Jan 22, 2007

Last updated in NPPES Mar 16, 2022

Taxonomy & licenses

207UN0901X Nuclear Cardiology Physician Allopathic & Osteopathic Physicians · License 244626 (MA) Secondary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 244626 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
110095594A	Medicaid	MA	-

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 Brigid Carlson practice?

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

What is the NPI number for Brigid Carlson?

The National Provider Identifier (NPI) for Brigid Carlson is 1366595225, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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James Liebmann Medical Oncology Physician · Worcester, MA NPI 1477556587 Daniel Han Radiation Oncology Physician · Worcester, MA NPI 1831192301 Frances Lagana Podiatrist · Worcester, MA NPI 1750385514 Seth Arum Endocrinology, Diabetes & Metabolism Physician · Worcester, MA NPI 1679578793 Yong Zhao Blood Banking & Transfusion Medicine Physician · Worcester, MA NPI 1366448813 Donna Russell Certified Registered Nurse Anesthetist · Worcester, MA NPI 1689672347 Bruce Simon Surgical Critical Care Physician · Worcester, MA NPI 1164420634 Richard Haas Endocrinology, Diabetes & Metabolism Physician · Worcester, MA NPI 1023017373

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-16.