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RUAIRI JOSEPH O CONNOR MD
NPI 1568031318
Emergency Medicine in Worcester, MA

Active since June 24, 2021PECOS EnrolledAccepts Medicare Assignment
55 LAKE AVE N, WORCESTER, MA 01655(508) 334-1000 Get Directions Write a Review

NPPES record last updated: May 7, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 7, 2025, Apr 10, 2024, Apr 5, 2024 and 5 more (8 updates tracked since 2021).

About Ruairi Joseph O Connor Md NPPES

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

RUAIRI JOSEPH O CONNOR MD (NPI 1568031318) is an individual emergency medicine provider in Worcester, Massachusetts, licensed in Connecticut (80341) and active in the NPI registry since June 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Worcester, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1568031318
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameRUAIRI JOSEPH O CONNORCredential: MD
Location Address55 LAKE AVE NWorcester, MA 01655-0002
Mailing Address160 Fremont StWorcester, MA 01603-2371
Phone(508) 334-1000
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateJune 24, 2021
Last NPPES UpdateMay 7, 20258 updates tracked since enumeration
NPPES CertifiedMay 7, 2025
✔ NPI 1568031318 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CT · 80341
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 294733 (MA)
55 LAKE AVE N, Worcester, MA 01655
Open in Google Maps ↗

Secondary Practice Location 1

Location 1119 Belmont StWorcester, MA 01605-2903 · Phone (508) 334-1000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ruairi Joseph O Connor Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8224540869
PECOS Enrollment IDI20250620000947, I20250728003948
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01655 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

HILLARY R. IRONS MD
Emergency Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 421-1400
MS. EILEEN A. DUHAMEL NP
Nurse Practitioner
55 LAKE AVE N, DEPARTMENT OF RADIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-2710
EWA HRYNISZYN CRNA
Nurse Anesthetist, Certified Registered
55 LAKE AVE N, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-3271
HELEN COPSEY PA-C
Physician Assistant
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-8585
DR. ADEPEJU GBADEBO CHAMPION M.D.
Internal Medicine
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-2731
SOWMYA KORAPATI
Internal Medicine (Hematology & Oncology)
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-3550
LAYLA FAKHRZADEH M.D.
Anesthesiology
55 LAKE AVE N, ANESTHESIOLOGY
WORCESTER, MA 01655
Worcester County (508) 334-3271
YOONYIE CHO M.D.
Anesthesiology
55 LAKE AVE N
WORCESTER, MA 01655
Worcester County (508) 334-1000

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 Ruairi O Connor's NPI number?

The NPI number for Ruairi O Connor is 1568031318. It was assigned to this individual provider in the NPPES registry on June 24, 2021.

Where is Ruairi O Connor located?

Ruairi O Connor practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (508) 334-1000.

What is Ruairi O Connor's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Ruairi O Connor enrolled in Medicare?

Yes. Ruairi O Connor is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Ruairi O Connor was last updated on May 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.