Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mariam Ellen Grossman, PTA

Physical Therapy Assistant in Worcester, MA · enumerated 2008 · practices at Center for Living and Working, Inc.

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

National Provider Identifier

1013167337

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Registry record

Entity type Individual (Type 1)

Name Ms. Mariam Ellen Grossman

Credential PTA

Sex Female

Practice address 484 Main St, Easter Seals Massachusetts, Worcester, MA, 01608

Phone (800) 244-2756

Fax (508) 831-9768

Enumeration date Sep 23, 2008

Last updated in NPPES Sep 23, 2008

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 8134 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1013167337 active?

Yes, as of the latest NPPES snapshot, NPI 1013167337 is active (record last updated 2008-09-23).

How do I verify Mariam Grossman's NPI record?

Cross-check NPI 1013167337 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-23.