Our Staff

All our professionals at Apex Endodontics maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in endodontics


Dr. Harout Barsemian
Dr. Barsemian attended the University of Montreal for his dental degree where he was on the dean's list every semester. He was awarded the American Association of Endodontists annual student award . He obtained his Endodontic training at the University of Medicine and Dentistry of New Jersey. He was listed in "America's Top Dentist" by consumer research council Of America -2003 through 2017. He was also voted as one of new Jersey's top dentists seven consecutive years (2009-2017) by his peers in a survey conducted by New Jersey Monthly magazine.

Dr. Barsemian has been providing Endodontic care since 2001. He was formerly a partner in a multi-office practice located in south Jersey.

He has been trained in the newest technology such as the use of rotary instrumentation with obturation using the system B and the obtura. He also uses the surgical operating microscope routinely for Endodontics as well as microsurgery. He believes most root canals can be completed in one visit.

He has lectured on Endodontics and microsurgery and was a part time instructor at the University of Pennsylvania in the department of Endodontics. Presently Dr Barsemian is on the teaching staff of Morristown Medical Center's Dental clinic.

Dr. Barsemian is a member of the American Dental Association, the New Jersey dental Association, Union County Dental Society, Central Jersey Dental society, The American Association of Endodontists and Tri County Dental Society where he served as president  2010-11. He is the director of Apex Seminars, a study club for dentists and dental specialists. 

Dr. Barsemian will provide the Highest Endodontic care possible in a friendly and comforting environment.


Dr. Jonathan Mendia
Dr. Jonathan Mendia, owner of Advanced Dental Anesthesia Services earned his Doctorate of Dental Medicine from the University of Pittsburgh School Of Medicine. Upon completion, Dr. Mendia completed a post-doctoral residency in Dental Anesthesiology at the University of Pittsburgh School of Dental Medicine, one of only six highly specialized Dental Anesthesiology programs. Dr. Mendia’s specialized training includes all levels of anesthesia services.

In addition to serving as Assistant Clinical Professor of Dental Anesthesia at Rutgers University School of Dental Medicine, Dr Mendia provides continuing education courses on IV Sedation and medical emergencies. He holds certifications in Basic Life Support (BLS), Advanced Cardiac Life Support (ACLS), and Pediatric Advanced Life Support (PALS).

Dr Mendia safely sedates pediatric, special needs, and geriatric patients, as well as anxious or dental phobic adults, providing a comfortable environment for both the patient and Dentist. Dr. Mendia aims to minimize patients’ dental fears and ensure that all of his patients feel more comfortable during their dental care.