Dr. Drennan is a 1997 graduate of Tufts University School of Dental Medicine in Boston, USA. He was born in Tokyo and graduated from St. Mary's International School. He has 10 years of clinical experience in the United States and prior to returning to Japan he maintained a private practice in Princeton, New Jersey. He has dental licenses in both the United States and Japan.
Dr. Drennan regularly attends seminars to keep up to date with the ever evolving procedures and techniques in dentistry. He has attended over 500 hours of courses and is an active member of the American Academy of General Dentistry.
Dr. Drennan treats patients from ages 2 and up and strives to provide the most current yet conservative treatment for his patients.