Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Senn, OT, CHT

Occupational Therapist in Newark, NJ · enumerated 2006 · practices at Twin Boro Physical Therapy Associates, PA.

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

National Provider Identifier

1528122843

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Registry record

Entity type Individual (Type 1)

Name Margaret Senn

Credential OT, CHT

Sex Female

Practice address 266-272 Chestnut St Fl 2, Newark, NJ, 07105

Phone (973) 732-3850

Enumeration date Dec 21, 2006

Last updated in NPPES Mar 12, 2020

Taxonomy & licenses

225XH1200X Hand Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 46TR00028900 (NJ) Secondary

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 46TR00028900 (NJ) Primary

OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT credential

Other identifiers

Identifier	Type	State	Issuer
46TR00028900	Other	NJ	STATE OT LICENSE

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 Margaret Senn practice?

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

What is the NPI number for Margaret Senn?

The National Provider Identifier (NPI) for Margaret Senn is 1528122843, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Twin Boro Physical Therapy Associates, PA Occupational Therapist · Newark, NJ NPI 1659874857

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-12.