Meet Our Expert Dental Team in McKinney

Dedicated Professionals Committed to Your Oral Health
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Meet Our Experienced and Highly Qualified Team Members

Each member of our team is highly qualified and licensed, ensuring that you receive the best possible treatment. With a shared focus, we strive to ensure that every patient is well taken care of and receives personalized attention. Allow us to introduce our team!
Dr.-Peter-J.-Kim

Peter J. Kim, DDS

Dr. Kim is a highly accomplished and well-established general dentist, with an impressive educational background and extensive clinical experience. He holds a Doctor of Dental Surgery (DDS) degree, which he earned from the prestigious University of Michigan School of Dentistry. Additionally, Dr. Kim completed a comprehensive general practice residency program in the city of New York. Throughout his career, Dr. Kim has honed his skills and knowledge by actively engaging with patients as a dentist. He is committed to staying at the forefront of the dental field, consistently incorporating the latest advancements in technology and techniques into his practice. Outside of his professional endeavors, Dr. Kim shares his life with his wife, Olivia, and their delightful miniature poodle named Gaeul. Together, they prioritize building strong connections within their community. Dr. Kim’s passion lies in cultivating meaningful relationships with his patients and delivering the utmost quality of care. He approaches his profession with unwavering dedication and enthusiasm, and he is thrilled to contribute his expertise to the McKinney community.

Breann Tuley, Office Manager

Breann, a young native of Collin County, was raised in the charming town of Anna, Texas, where her dream of pursuing a career in the dental profession took root from a young age. With her infectious energy, she has passionately committed to providing top-notch chair-side assistance. Breann's dedication extends beyond her technical skills, as she genuinely loves getting to know her patients at each appointment. Outside of the office, Breann cherishes her role as a loving fur-mom to her two adorable canines: Bleu, an energetic Australian Shepherd, and Honey, a playful Dachshund. Whether she's enjoying quality time with her family or escaping to the beach with a good book, Breann's zest for life is truly contagious. With her blend of professionalism and heartfelt care, she brings a unique and joyful energy to our dental team.
Breann Tuley, Office Manager at Pecan Tree Family Dentistry, smiling with her arms crossed, wearing black scrubs and showing her floral arm tattoos against a white background.
Jeannette Smith, Business Associate at Pecan Tree Family Dentistry, smiling with her arms crossed while wearing black scrubs against a white background.

Jeannette Smith, Business Associate

Breann, a young native of Collin County, was raised in the charming town of Anna, Texas, where her dream of pursuing a career in the dental profession took root from a young age. With her infectious energy, she has passionately committed to providing top-notch chair-side assistance. Breann's dedication extends beyond her technical skills, as she genuinely loves getting to know her patients at each appointment. Outside of the office, Breann cherishes her role as a loving fur-mom to her two adorable canines: Bleu, an energetic Australian Shepherd, and Honey, a playful Dachshund. Whether she's enjoying quality time with her family or escaping to the beach with a good book, Breann's zest for life is truly contagious. With her blend of professionalism and heartfelt care, she brings a unique and joyful energy to our dental team.

Pauline Fields, RDH

Pauline was born and raised in Baton Rouge, Louisiana. She graduated cum laude from Northeast Louisiana University with a Bachelors Degree of Science in Dental Hygiene. After practicing in Louisiana, Pauline and her husband Kelly took a leap of faith and moved to McKinney in 2005 for a better education for their son Connor. Pauline joined the dental practice in January 2006. What she enjoys about being a dental hygienist is developing relationships with her patients and assisting with their dental health. She also enjoys furthering her dental knowledge by participating in continuing education courses. She has taken advanced dental courses in periodontal disease, oral cancer, implant care, geriatrics, nutrition, dental imaging, and instrumentation techniques. With Pauline’s gentle touch and friendly personality, she gets to know her patients and their individual needs.
Pauline Fields, RDH – Registered dental hygienist at Pecan Tree Family Dentistry in McKinney, TX, smiling with folded arms in black scrubs.
Edemar-Lopez

Edemar Lopez, RDA

Hello, my name is Edemar Lopez, and I’m proud to call Melissa, Texas, my hometown. I’m currently pursuing my college education with a dream of becoming a dentist. Dentistry has always been a passion of mine, and I am deeply committed to learning and growing in this field to provide exceptional care to patients in the future.
When I’m not studying or advancing my knowledge in dentistry, you can often find me enjoying a good soccer match. Soccer has taught me the value of teamwork, perseverance, and dedication—qualities I aim to bring to my journey in dental care.
I’m also passionate about helping patients achieve healthier, brighter smiles and making a positive impact on their lives. I believe that every person deserves a confident smile, and I’m excited to contribute to their journey toward better oral health.
Thank you for letting me share a little about myself—I look forward to serving you and your family with care and compassion!

Mary Sanchez-Gutierrez, RDA

Originally from Venezuela, Mary recently relocated from Canada to Texas with her husband and their beloved son, Axel. A former dentist in both Chile and Venezuela with a specialization in endodontics, Mary brings a deep passion for helping patients rediscover their confidence through healthy, beautiful smiles. She now shares that same dedication in her role as a warm and welcoming dental assistant, helping patients feel at ease throughout their visit. Outside the office, Mary enjoys working out at home, crafting and experimenting with Axel, and spending quality time outdoors with her family—especially exploring local parks. She’s proud to be part of a team that prioritizes comfort, compassion, and exceptional care.
Mary-Sanchez-Gutierrez