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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. Daniel O'Brien:

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  1. Qualifications
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Patient Reviews

5.0
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(1)
Patient comments (0)

The overall average patient rating of Dr. Daniel O'Brien is Excellent. Dr. O'Brien has been reviewed by 1 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
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Courteous Staff 5.0
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Accurate Diagnosis 5.0
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Bedside Manner 5.0
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Spends Time with Me 5.0
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Follows Up After Visit 5.0
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Education & Awards

Dr. O'Brien graduated from Universite De Liege.


Affiliations

Dr. O'Brien has 8 hospital affiliations:

  • Nashoba Valley Medical Center 
  • Marlborough Hospital 

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Additional Information
Dr. Daniel J P O'Brien MD is a male Anesthesiologist, has 36 years of experience and practices in Anesthesiology.
Where does Dr. Daniel J. O'Brien practice?
Dr. Daniel O'Brien has 2 office locations.
Dr. Daniel O'Brien practices Anesthesiology near Worcester, MA.
Additional practice locations include: Fitchburg, MA.
See Worcester Anesthesiologists.