Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Ruairi Joseph O Connor, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1568031318

Ruairi Joseph O Connor, MD is an Emergency Medicine in Worcester, Massachusetts. Qualified in 2010, 16 years ago. Practices with Orion Emergency Services, Inc, a 17-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and Massachusetts.

Years since qualifying
16
Licensed in
CT, MA
In the registry since
2021
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

55 Lake Ave N
Worcester, MA 01655-0002
Phone: (508) 334-1000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 119 Belmont St, Worcester, MA 01605-2903 — (508) 334-1000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 80341 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 294733 (MA)

Record details

NPI number1568031318
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 24, 2021
Last updated in NPPESMay 7, 2025
Certification dateMay 7, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Orion Emergency Services, Inc. — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Worcester