advertisement
Browse Health
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Colin O'Brien:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Have you visited Dr. O'Brien? Share your experience.
Write a Review

Prepare before visiting Dr. O'Brien


Specialties & Research

Dr. Colin O'Brien, ARNP, MD is board certified in Emergency Medicine.


Education & Awards

Dr. O'Brien graduated from Georgetown University, Washington.


Affiliations

Dr. O'Brien has 4 hospital affiliations:

  • U Mass Memorial Med Ctr - Memorial Campus 
  • Southern Nh Medical Center 

Similar doctors nearby

Dr. Gregg Helland

Emergency Medicine
3 years experience
Worcester, MA

Dr. Kevin Kotkowski

Emergency Medicine
2 years experience
Worcester, MA

Dr. Marie King

Emergency Medicine
1 years experience
Worcester, MA

Dr. Jonathan Slutzman

Emergency Medicine
Worcester, MA

Dr. Andrew Cathers

Emergency Medicine
Worcester, MA

Dr. Eric Cirino

Emergency Medicine
1 years experience
Worcester, MA
Search All Similar Doctors
Additional Information
Dr. Colin H O'Brien ARNP and MD is a male Emergency Medicine Specialist, has 23 years of experience and practices in Emergency Medicine.
Where does Dr. Colin H. O'Brien practice?
Dr. Colin O'Brien has 2 office locations.
Dr. Colin O'Brien practices Emergency Medicine near Worcester, MA.
Additional practice locations include: Nashua, NH.
See Worcester Emergency Physicians.