Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Martiros, MED

Case Manager/Care Coordinator in Worcester, MA · enumerated 2007.

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

National Provider Identifier

1558400648

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary Martiros

Credential MED

Sex Female

Practice address 237 Millbury St, Worcester, MA, 01610

Phone (508) 755-1228

Fax (508) 797-3477

Enumeration date Feb 5, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mary Martiros?

The National Provider Identifier (NPI) for Mary Martiros is 1558400648, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Martiros practice?

The practice location on file with NPPES is in Worcester, MA. 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.