Dr. Brian O'Sullivan is a native of Garden City, NY. He graduated with honors from Cornell University in 1975. He was then awarded a Naval Scholarship and attended Fairleigh Dickson Dental School where he also graduated with honors in 1979. Dr. O'Sullivan was then selected for a general practice residency at the Naval Hospital in Oakland, CA. In 1983 Dr. O'Sullivan completed his prosthodontic residency at Bethesda Naval Hospital. He remained on active duty with the Navy for 9 years.
Dr. O'Sullivan retired from the Naval Reserve Forces with 25 years of service. He has been in private practice in Spring Hill for 22 years and continues to practice all aspects of dentistry with an emphasis on cosmetic and prosthodontic dentistry. Dr. O'Sullivan is married to Barbara O'Sullivan, who is employed as an elementary school teacher in Hernando County. They have two children, Jennifer and Sean. Dr. O'Sullivan enjoys outdoor pursuits such as sailing, fishing, and hunting. He also has a passion for mentoring young adults. He is currently a BLUE AND GOLD officer with the United States Naval Academy.
Brian O'Sullivan, DMD • Dentist Spring Hill, FL Dr. Brian O'Sullivan is a native of Garden City, NY. He graduated with honors from Cornell University in 1975. Learn more about his background here! DeLuca, Ressel, & Congemi Dental Care - Dr. James DeLuca DMD, Dr. Nick Ressel DMD, 3429 Mariner Blvd, Spring Hill, FL 34609 - (352) 666-9898 - springhilldentist.com - 5/5/2026 - Key Phrases: dentist spring hill fl -
Dr. Brian O'Sullivan is a native of Garden City, NY. He graduated with honors from Cornell University in 1975. He was then awarded a Naval Scholarship and attended Fairleigh Dickson Dental School where he also graduated with honors in 1979. Dr. O'Sullivan was then selected for a general practice residency at the Naval Hospital in Oakland, CA. In 1983 Dr. O'Sullivan completed his prosthodontic residency at Bethesda Naval Hospital. He remained on active duty with the Navy for 9 years.