Dr. John G. Antonakakis is an anesthesiologist at Portsmouth Anesthesia Associates and at Portsmouth Hospital in Portsmouth, NH.  Dr. Antonakakis is Board Certified with the American Board of Anesthesia and licensed in MA, VA and NH.

Dr. Antonakakis graduated from the The Robert Larner Md College of Medicine At The University of Vermont.  In 2003, he received his medical degree from University of Vermont College of Medicine.  He completed an Internship and Residency at the University of Virginia medical Center in 2007.

He co-authored publications on the 5 most common unltrasound artifacts encountered during ultrasound-guided regional anesthesia and Ultrasound-guided common personeal nerve block at the level of the fibular head.

Dr. Antonakakis is also affiliated with Stratham Ambulatory Surgery Center.