Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Orthopaedic Specialists of Massachusetts, LLC

Orthopaedic Surgery Physician in Milton, MA · enumerated 2015 · authorized official Robert Patz, Owner / MD.

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

National Provider Identifier

1154792414

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Registry record

Entity type Organization (Type 2)

Legal business name Orthopaedic Specialists of Massachusetts, LLC

Practice address 100 Highland St Ste G-3, Milton, MA, 02186

Phone (617) 696-9229

Enumeration date Oct 13, 2015

Last updated in NPPES Oct 13, 2015

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Robert Patz

Title Owner / MD

Phone (781) 769-6720

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 Orthopaedic Specialists of Massachusetts, LLC?

The NPI for Orthopaedic Specialists of Massachusetts, LLC is 1154792414, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Orthopaedic Specialists of Massachusetts, LLC?

NPPES lists Robert Patz (Owner / MD) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-13.