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Meet the Dentists in our Vestal & Binghamton Offices

Our Founder – Robert T. Lalor, D.D.S.


Dr. Robert T. Lalor, better known as Doc, was raised in the Bronx, NY. He graduated cum laude from the University of Notre Dame. He continued on to Columbia University, where he graduated with a Doctor of Dental Surgery degree in 1961. In the early 1960s, Doc and his wife spent three years in New Mexico for the Public Health Service and provided dentistry to Navajo Indians. They went on to be the proud parents of five children. Dr. Lalor opened his practice at 9 Tioga Blvd, Apalachin, NY in 1964. He provided dental care to the community for almost 50 years before his retirement in June 2011. Although Doc no longer sees patients, we pride ourselves on continuing the precedent he set for providing exceptional patient care and always giving back to our community.

Robert A. Lalor, D.D.S.


Dr. Bob Lalor graduated cum laude from the University of Buffalo with a degree of Doctor of Dental Surgery in 2000. He completed his residency at Nassau University Medical Center, before joining his father’s practice in 2001. In 2003, “Dr. Bob,” as his patients fondly call him, married his wife, Dr. Mary John, whom he met at Buffalo. They have three children together.  In 2010, Dr. Bob took over ownership of the practice in preparation for his father’s retirement a year later. Dr. Bob’s enthusiasm for dentistry and his commitment to making the practice the best that it can be has been crucial in helping the office grow to what it is today.

Mary John, D.D.S.


Dr. Mary John was born in Kerala, India and spent most of her childhood in Nigeria until immigrating to the United States at the age of 12. Her family found a home in Queens, NY. Dr. John received her Bachelor of Science at  SUNY Binghamton and graduated from the University of Buffalo with a Doctor of Dental Surgery degree in 2000. She completed her residency at Nassau University Medical Center, where she stayed for a second year as Chief Resident. After spending three years as an Associate Doctor at Valley Dental Group in Endicott, Dr. John joined her husband, Dr. Bob Lalor, at Lalor Family Dental in January 2006 where she continues to see patients on a part-time basis while also raising their three children and serving on the office Leadership Team.

Bert Perry, D.M.D.


Dr. Perry is pleased to say he was a patient of Doc’s as a child and has been an Associate Doctor with Doc Lalor for many years.  He attended Vestal High School and earned his Bachelor’s degree from Eisenhower College.  In 1984, Dr. Perry graduated from Temple University School of Dental Medicine in Philadelphia, PA.  Originally from Apalachin, he returned to the area and has maintained a private practice in Candor since 1986.  Dr. Perry continues to maintain his own practice but also works part time as part of the Lalor Family Dental team.

Bryant Lambert, D.D.S.


Dr. Bryant Lambert joined our practice in January of 2009. He earned his Bachelor of Science degree in biochemistry from the State University of New York at Stony Brook in 1995. In 1999, Dr. Lambert earned his Doctor of Dental Surgery degree from the State University of New York School of Dental Medicine at Buffalo. He completed his General Practice Residency at the Medical College of Georgia. Dr. Lambert practiced in Atlanta, GA for ten years with a scope of practice limited to orthodontics for seven years. A native of our area, Dr. Lambert has returned with his wife, Linda, and they now reside in Horseheads, NY.

John Kweun, D.D.S.

Dr. John KweunDr. John Kweun joined the Lalor Family Dental team in July of 2015. He grew up in Jacksonville, Florida and earned his Bachelor of Science from the University of Florida. Dr. Kweun graduated from New York University College of Dentistry with a Doctor of Dental Surgery. He then completed his residency at St. Joseph’s Healthcare System in Patterson, NJ before joining Lalor Family Dental. Dr. Kweun enjoys playing tennis and golf in his free time.

Hee Soo Kim, D.D.S.

Dr. Hee Soo KimDr. Hee Soo Kim joined the Lalor Family Dental team in 2016.   Dr. Kim was born in South Korea, but grew up in Canada and graduated with a Bachelor of Science from McMaster University in Ontario, Canada.  In 2014, he received a Doctor of Dental Surgery degree from New York University College of Dentistry.  After graduating, he worked as a General Dentist for two years in Connecticut before joining Lalor Family Dental.  In Dr. Kim’s free time, he enjoys golfing, watching movies and enjoys walks with his dog, Toro.