Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Martha Otterbeck, LICSW

Clinical Social Worker in Westfield, MA · enumerated 2006 · practices at Say Peas Speech and Feeding Therapy LLC.

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

National Provider Identifier

1255418489

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Registry record

Entity type Individual (Type 1)

Name Martha Otterbeck

Credential LICSW

Sex Female

Practice address Westfield, MA, 01085

Phone (413) 667-5376

Enumeration date Nov 1, 2006

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 1027480 (MA) 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

Where does Martha Otterbeck practice?

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

What is the NPI number for Martha Otterbeck?

The National Provider Identifier (NPI) for Martha Otterbeck is 1255418489, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

John Meiklejohn Mental Health Counselor · Westfield, MA NPI 1164430575 Jessica Roy Clinical Social Worker · Westfield, MA NPI 1649344540 Robert Catuccio Clinical Psychologist · Westfield, MA NPI 1760546618 Greta Zane Speech-Language Pathologist · Westfield, MA NPI 1245552819 Say Peas Speech and Feeding Therapy LLC Hearing and Speech Clinic/Center · Westfield, MA NPI 1750886362

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