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ROBERT J OBRIEN JR, MD AND ASSOCIATES PC
NPI 1033563960
Specialist in Winchester, MA

Active since April 18, 2016CLIA 22D0977014 · Certificate of Compliance
955 MAIN ST, SUITE G6, WINCHESTER, MA 01890(781) 729-4878 Get Directions Write a Review

NPPES record last updated: April 18, 2016. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Robert J Obrien Jr, Md And Associates Pc NPPES

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

ROBERT J OBRIEN JR, MD AND ASSOCIATES PC (NPI 1033563960) is a healthcare organization registered as a specialist in Winchester, Massachusetts and active in the NPI registry since April 2016. The organization holds a CLIA Certificate of Compliance certificate valid through March 17, 2027 and lists Donna O'brien, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1033563960
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameROBERT J OBRIEN JR, MD AND ASSOCIATES PC
Location Address955 MAIN ST, SUITE G6Winchester, MA 01890-1961
Mailing Address955 Main St, Suite G6Winchester, MA 01890-1961 · (781) 729-4878
Phone(781) 729-4878
Organization SubpartNo
Authorized OfficialDonna O'brienOffice Manager · (781) 729-4878
Enumeration DateApril 18, 2016
✔ NPI 1033563960 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
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 1

Medicare PINM21388

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 22D0977014

Robert J O'brien Jr MD And Associates · Winchester, MA
Active · expires Mar 17, 2027
CLIA Number22D0977014
Laboratory TypePhysician Office
Certificate Effective DateMarch 18, 2025
Certificate Expiration DateMarch 17, 2027
Laboratory DirectorDr. Benjamin Solky
Laboratory Phone(781) 729-4878
Laboratory LocationRobert J O'brien Jr MD And Associates955 Main St Suite G6, Winchester, MA 01890
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

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
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
DR. SOPHANA HEM DMD
Dentist (General Practice)
955 MAIN ST, SUITE #111
WINCHESTER, MA 01890
Middlesex County (781) 721-9900

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 J Obrien Jr, MD And Associates PC's NPI number?

The NPI number for Robert J Obrien Jr, MD And Associates PC is 1033563960. It was assigned to this organization in the NPPES registry on April 18, 2016.

Where is Robert J Obrien Jr, MD And Associates PC located?

Robert J Obrien Jr, MD And Associates PC is located at 955 Main St Suite G6, Winchester, MA 01890. The listed phone number is (781) 729-4878.

What is Robert J Obrien Jr, MD And Associates PC's specialty?

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

Does Robert J Obrien Jr, MD And Associates PC hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 22D0977014) is associated with this NPI, valid through March 17, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Robert J Obrien Jr, MD And Associates PC accept?

Health plans from Anthem Blue Cross and Blue Shield list Robert J Obrien Jr, MD And Associates PC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Robert J Obrien Jr, MD And Associates PC was last updated on April 18, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.