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ROBERT O'BRIEN MD & ASSOC.
NPI 1598041410
Specialist in Winchester, MA

Active since October 24, 2011
955 MAIN ST, G6, WINCHESTER, MA 01890(781) 729-4878(781) 729-5989 Get Directions Write a Review

NPPES record last updated: October 24, 2011. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Robert O'brien Md & Assoc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ROBERT O'BRIEN MD & ASSOC. (NPI 1598041410) is a healthcare organization registered as a specialist in Winchester, Massachusetts and active in the NPI registry since October 2011. The organization lists Robert O'brien, President, as its authorized official.

NPPES Registry Identity

NPI1598041410
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameROBERT O'BRIEN MD & ASSOC.
Location Address955 MAIN ST, G6Winchester, MA 01890-1961
Mailing Address955 Main St, Suite G6Winchester, MA 01890-1961 · (781) 729-4878 · Fax (781) 729-5989
Phone(781) 729-4878
Fax(781) 729-5989
Organization SubpartNo
Authorized OfficialRobert O'brienPresident · (781) 729-4878
Enumeration DateOctober 24, 2011
✔ NPI 1598041410 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in MA · 209962
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
955 MAIN ST, Winchester, MA 01890
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Other Identifiers 2

Medicare UPINA33975MA
Medicare PIN103372768MA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOSEPH P O'DONNELL D.M.D.
Dentist (Pediatric Dentistry)
955 MAIN ST
WINCHESTER, MA 01890
Middlesex County (781) 729-1900
ROBERT J OBRIEN JR, MD AND ASSOCIATES PC
Specialist
955 MAIN ST, SUITE G6
WINCHESTER, MA 01890
Middlesex County (781) 729-4878
LINDSAY ROSE MCGOVERN PA-C
Physician Assistant (Medical)
955 MAIN ST
WINCHESTER, MA 01890
Middlesex County (781) 729-4878
DR. GERALDINE C GARCIA-ROGERS D.M.D.
Dentist (Pediatric Dentistry)
955 MAIN ST
WINCHESTER, MA 01890
Middlesex County (781) 729-1900
MIDDLESEX SURGICAL ASSOCIATES INC
Specialist
955 MAIN ST, SUITE G2A
WINCHESTER, MA 01890
Middlesex County (781) 729-2020
DR. LAURA CHRISTINA VITALE M.D.
Pediatrics
955 MAIN ST, STE 103
WINCHESTER, MA 01890
Middlesex County (617) 359-5052
ALEXANDRIA MCGOVERN PA-C
Physician Assistant
955 MAIN ST
WINCHESTER, MA 01890
Middlesex County (781) 888-5791
EDWARD A RYAN MD
Ophthalmology
955 MAIN ST, STE 108
WINCHESTER, MA 01890
Middlesex County (787) 721-0447

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert O'brien MD & Assoc.'s NPI number?

The NPI number for Robert O'brien MD & Assoc. is 1598041410. It was assigned to this organization in the NPPES registry on October 24, 2011.

Where is Robert O'brien MD & Assoc. located?

Robert O'brien MD & Assoc. is located at 955 Main St G6, Winchester, MA 01890. The listed phone number is (781) 729-4878.

What is Robert O'brien MD & Assoc.'s specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for Robert O'brien MD & Assoc. was last updated on October 24, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.