Meet Our Staff

William M. Callahan, DDS, an Atlanta, Ga. native, has practiced General Dentistry since 1980. He practiced with his father, William L. Callahan, Jr., for 25 years until the latter's retirement. In January 2007, he began practicing with Dr. Garland Johnson in his Westminster office, while continuing to practice in Atlanta two days a week . In October of 2007, Dr. Callahan decided to make Westminster his full-time practice home. “Dr. Bill”, as he is known by his patients and staff, is glad to call Westminster, SC his home now!

Dr. Callahan earned his BS in Mathematics from Emory University College then his Doctor of Dental Surgery degree from Emory University School of Dentistry. He was a member of the Crown and Bridge Faculty at Emory Dental School, teaching clinical dentistry to junior and senior dental students until the school closed in 1988. Dr. Callahan is active in all phases of organized dentistry, as a member of the American Dental Association and the Hinman Dental Society of Atlanta, serving as its President in 2000 and General Chairman in 2003. He still serves on the Board of Trustees of the Hinman Dental Society. With his move to Westminster, he joined the South Carolina Dental Association as well.

Dr. Callahan is married to his “bride” of 31 years, the former Lynn Goodroe of Nashville, TN. They have three grown children, BJ, with his wife, Amanda, Joey and Kathleen, who is planning an April 2010 wedding to Allan Cecil. Dr. Callahan and Lynn moved to their home on Lake Hartwell permanently in December 2005, having lived there part time since 1984. Dr. Bill enjoys fishing and working in the woods. Lynn and Bill enjoy the quiet and relaxation of living in their home in beautiful upstate South Carolina!

Debbie Smith is our Office Manager. She is a native of Westminster, a graduate of Westminster High School, and a member of First Baptist Church of Westminster. She is married to Clyde Smith, and they have a daughter Hannah. Debbie has worked in the dental profession over 30 years seeing second and third generations of families as patients. She began working for Dr. Garland Johnson during high school part-time. Through the years Debbie has studied radiology, anesthesia, plus various dental assisting specialties all at Greenville Tech. The favorite part of her career in dentistry is the reward she gets from helping patients. In her spare time Debbie keeps up with Hannah’s various sports activities.

Peggy Lee Carson is our fulltime dental assistant. She is a lifetime Oconee resident having graduated from Walhalla High School. She and her husband Mike have lived at their current home in Westminster for 12 years. Her first job in high school was at Bi-Lo; later she pursued a career in cosmetology. Peggy began working as a dental assistant and office manager for a dentist in Seneca from 1999 to 2006. It was then that she began her association with Dr. Garland Johnson and East End Dental, and now with Dr. William Callahan. She has studied both dental radiology and anesthesia. Peggy enjoys travel, decorating and working in the yard. She also spends time with her precious long-haired dachshund, Lucky. Peggy’s favorite part of working in the dental profession is the opportunity to meet new people.

Dionne Scarborough Burrell is our Registered Dental Hygienist. She was born in Anderson and raised in Belton where she graduated from Belton-Honea Path High School. She raised three sons there; two attended BHP and one went to T.L. Hannah. Dee spent 25 years working in retail for K-Mart, Wal-Mart, and Dillard’s. Additionally, she had a five year stint at the Michelin Plant making the steel belt for radial tires. Dee graduated from hygiene school at Greenville Tech in 1996 and began her dental career in Atlanta. Dionne has lived in Walhalla for three years and began working for Dr. Callahan in early 2007. Outside work, Dee’s spare time often involves her 8-year old grandson Ashton. She also looks for opportunities to share her love of line and shag dance with her oldest son Chris. Dionne enjoys her hygiene career because of the variety of people she gets to meet and the various challenges involved in their dental care. She says “this is not just about cleaning teeth; it’s about the education of the patients, too.” She continues by saying “and sometimes, if you’re really lucky, you get a good doctor like Dr. Callahan.”

Paula J. Gray is our part-time dental assistant. She was born in York, PA and moved to Westminster when she was 4 years old. Upon her graduation from West Oak High School, she went to Tri-County Tech for her dental assistant training. Paula worked for dental offices in Seneca and Clemson before joining Dr. Callahan in 2007. Additionally, she works at Wal-Mart of Seneca. She married Hollis Gray in 2008, and they live in Seneca. Her hobbies include animals and their three dogs, photography including weddings, and being part of the Drama Team at Seneca Church of God of Prophecy. Paula’s favorite parts of her dental assisting work is comforting children through their first appointment and helping patients stay calm.


	Dr. William Callahan General Dentistry 104 West Oak Hwy Westminster, SC 29693 Phone: 864-647-9000