Dr. John R. Herrin, DDS, MS A New Hampshire native, Dr. Herrin is a 1974 graduate of the US Military Academy at West Point. He earned his Doctor of Dental Surgery degree and completed his periodontal residency at the University of Iowa. Dr. Herrin is board certified as a Diplomate of the American Board of Periodontology. Dr. Herrin has been... Read More about New Hampshire Center For Periodontics

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