Meet Our Team

diana | More Best Upland Dentist

Diana Garfias, DA

Diana joined our team after working in another dental office for several years. She earned her Dental Assisting diploma in 2013, and she is skilled in both front and back office procedures. She enjoys providing exceptional care to our patients while she continues her studies in pursuit of a career as a dental hygienist. In her spare time, Diana enjoys painting and going out for walks with her dog, Billy.


brenda | Upland Best Dentist

Brenda Dunak, RDA

Brenda received her Registered Dental Assistant License in 2010. She interned at the office of Dr. Van Doren and continued to work with him until he sold the office in 2018. She stayed on with Dr. Kueckels so that she could continue to provide patients with the compassionate dental care that they were accustomed to. In her spare time, Brenda enjoys writing, knitting and gardening. She also loves spending time with her five grandchildren and her Black Labrador, Patience.


pam | Best Upland Dentist

Pam Mendez, RDH

Pam has been working in the dental field for forty-two years. She received her Registered Dental Assistant license and A.S. degree from Chaffey College in 1978. After obtaining her A.S. degree, she worked as an Orthodontic Assistant for fifteen years. She received her Registered Dental Hygiene license in 1994 from Pasadena City College and was awarded the In Clinic Professionalism Award. Since then, she has enjoyed working in general dentistry and periodontics. Pam worked with Dr. Van Doren for twenty-five years and continued with Dr. Kueckels when he sold the office in 2018. She is dedicated to her profession and passionate for the oral health care of her patients. In her spare time, Pam enjoys boating and camping with her husband.


eric | Upland Best Dentist

Eric Kueckels

Technical and Team Support


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Office Hours

Mon 8am - 5pm
Tues 8am - 5pm
Wed 8am - 5pm
Thur 8am - 5pm
Fri 8am - 12pm