Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven R Monteiro

Peer Specialist in Boston, MA · enumerated 2025.

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

National Provider Identifier

1154285047

Verified

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Registry record

Entity type Individual (Type 1)

Name Steven R Monteiro

Sex X

Practice address 850 Harrison Ave, Boston, MA, 02118

Phone (617) 414-5470

Enumeration date Dec 15, 2025

Last updated in NPPES Dec 15, 2025

Taxonomy & licenses

175T00000X Peer Specialist 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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Steven Monteiro?

Steven Monteiro is registered in NPPES with the primary taxonomy of Peer Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-15.