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Rebecca Ostertag

Behavior Analyst in Nashua, NH · enumerated 2017.

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

National Provider Identifier

1235675513

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Registry record

Entity type Individual (Type 1)
Name Rebecca Ostertag
Sex Female
Practice address 155 Main Dunstable Rd Ste 150, Nashua, NH, 03060
Phone (855) 959-4222
Enumeration date Jan 11, 2017
Last updated in NPPES Dec 12, 2022

Taxonomy & licenses

222Q00000X Developmental Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
103K00000X Behavior Analyst Behavioral Health & Social Service Providers 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 Rebecca Ostertag practice?
The practice location on file with NPPES is in Nashua, NH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Rebecca Ostertag?
The National Provider Identifier (NPI) for Rebecca Ostertag is 1235675513, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-12.