Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Rachel E Must-Ettinger, PHD MD

Anatomic Pathology & Clinical Pathology Physician in Waterbury, CT · enumerated 2006.

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

National Provider Identifier

1376553396

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Registry record

Entity type Individual (Type 1)

Name Dr. Rachel E Must-Ettinger

Credential PHD MD

Sex Female

Practice address 56 Franklin St, Waterbury, CT, 06706

Phone (203) 709-6053

Fax (203) 709-3156

Enumeration date Aug 9, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 033049 (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.

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Frequently asked questions

What is the NPI number for Rachel Must-Ettinger?

The National Provider Identifier (NPI) for Rachel Must-Ettinger is 1376553396, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rachel Must-Ettinger practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.