Patient Reviews

Reviews reflect patients' level of satisfaction with the care they received from this provider. Dr. Daniel Obrien does not yet have any reviews.

Have you seen Dr. Daniel Obrien before?
Be the first to review!


Dr. Daniel Obrien, MD is a Doctor primarily located in Lunenburg, MA, with other offices in Worcester, MA and Fitchburg, MA. He has 41 years of experience. His specialties include Anesthesiology. Dr. Obrien is affiliated with Health Alliance Hospitals Inc, Marlborough Hospital and UMass Health SystemClinton Hospital. He speaks English.


Find out the languages this doctor/ or staff may speak.


Learn where this doctor attended medical school.

Specialties & Expertise

Dr. Daniel Obrien has the following 1 area of expertise and 1 specialty.


Anesthesiologists are physicians who are trained to administer anesthetics, which are medicines used to block nerve sensation. Anesthesia can be either local to one specific part of a body, like a tooth, or regional to block feeling to a larger portion of the body, such as during an epidural for child birth. It can also be more general to block sensation to the entire body, resulting in unconsciousness.
Anesthesiologists assist in surgery by determining how much anesthesia is necessary and by monitoring the patient's level of responsiveness and vital signs throughout the procedure. The anesthesia specialist will also bring the patient out of anesthesia and then continue to monitor his or her vital signs post-operation.
Besides assisting in surgeries, anesthesiologists may also treat patients suffering from chronic pain.


See areas of expertise for treating specific conditions, procedures and surgeries for this doctor.

Locations & Directions


79 Elmwood Rd
Lunenburg, MA 01462

300 Grove St
Worcester, MA 01605

Medical Anesth. Consultants Corp.

326 Nichols Rd
Fitchburg, MA 01420

Nearby Doctors

Dr. Daniel Obrien, MD is similar to these 3 Doctors near Lunenburg, MA.