Dental Team

Dentist in Wesley Chapel, FL

All our professionals at Magnum Opus Dental maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry.


  • Joan H. Lynch, DDS

    Dr. Joan Lynch was born in Detroit, Michigan. She was a dental assistant and a dental hygienist prior to going to dental school at State University of New York at Buffalo. She graduated in 1991, and did a hospital residency at the Buffalo VA Medical Center. She moved to Florida in 1992, worked in a cosmetic practice in Brandon, and opened her office in Wesley Chapel in 1993. Dr. Lynch loves taking many hours of continuing education each year, most notably at the prestigious Kois Center in Seattle, of which she is a graduate. She is also a past member of the Council of Innovative Dentistry, which is a 3M research and development group for dental products. She is a member of the Academy of Cosmetic Dentistry, the American Dental Association, the Florida Dental Association, and the Academy of General Dentistry. She also received her Associates Fellowship through the World Clinical Laser Institute.

    The area of Wesley Chapel has changed extensively since she started her practice here in 1993, but what hasn’t changed is her passion for dentistry and how it can affect people’s outlook on their life. She has many patients who have become hard, fast friends. She enjoys the camaraderie with patients she has developed through the friendly professional aura of the office. It’s her life.

  • Leanne B. Sullivan, DMD

    Dr. Leanne Sullivan was born in New York and moved to Spring Hill, Florida in 1989. She attended the University of Florida for both her Bachelor of Science as well as her Doctorate of Medical Dentistry degrees. After receiving her degrees, she moved to Lutz and joined Dr. Lynch in 2005. She has complemented the practice with her current training in all facets of cosmetic and general dentistry. Dr. Sullivan is passionate about providing the best dental health for her patients through preventative care, comprehensive restorative treatment, and patient education.

    Dr. Sullivan is proud to be a graduate of the Kois Center in Seattle. The mission of the Kois Center is to deliver the latest advances in esthetics, implants and restorative dentistry through cutting edge continuing dental education. This advanced training has allowed her to restore even the most complex dental cases in a predictable way to create healthy, comfortable, and beautiful smiles.

    Outside of dentistry, Dr. Sullivan loves to spend time with her family. Her husband, Patrick, and their two children enjoy kayaking, fishing, going to the beach, and exploring everything that our beautiful state has to offer!

    As well as being a graduate of the Kois Center, Dr. Sullivan is a member of the American Dental Association, Florida Dental Association, West Coast Dental Association, and the Florida Academy of Cosmetic Dentistry. She has also received an Associate Fellowship through extensive training from the World Clinical Laser Institute. Through countless hours of continuing education courses, Dr. Sullivan has really enjoyed building onto her knowledge base with the latest advances in dentistry.

  • Jessica R. Brewer, DMD

    Dr. Jessica Brewer is a Tampa Bay native, raised in Lutz, and graduated from Steinbrenner High School! She earned her Bachelor’s Degree with a major in Biology and a Minor in Communication Studies at the University of Florida in Gainesville. She earned her Doctorate in Dental Medicine at the University of Florida College of Dentistry. Dr. Brewer continued her education in St. Petersburg by completing an Advanced Education in General Dentistry(AEGD) residency through the University of Florida.  Go Gators! While Dr. Brewer will be utilizing specialists for oral surgery(implants and extractions), orthodontics, endodontics, and periodontics, her continuing education gave her an excellent understanding of these specialties in order to optimally restore a smile. She completed over 200 hours of continuing education from Implant Educators, Invisalign, Integrative Dental Medicine Scholars Society, and The Dawson Academy of Occlusion during her residency training. Dr. Brewer is also an active member of the American Dental Association, Florida Dental Association, and American Academy of General Dentistry.  To add to her resume, Dr. Brewer will be attending the KoisCenter: Advancing Dentistry Through Science.

    Outside of the office, Dr. Brewer can be found on her Peloton bike, cheering on the Buccaneers, Lightning, or Florida Gators, and spending time with her husband and family! Dr. Brewer also loves animals and attends gymnastics competitions. 

    Dr. Brewer is passionate about serving her community and restoring her patient’s confidence and joy through dentistry. She is dedicated to your comfort and dental healthcare, as well as being committed to providing quality, comprehensive dental care for all of her patients!

  • Rachel Mercier, RDH

    Rachel became a Dental Hygienist in 2005 upon receiving her Associates degree from Pasco-Hernando Community College. Prior to becoming a hygienist, Rachel worked for 10 years as a dental assistant. She is a board member on the Technical Advisory Board for Pasco-Hernando State College. In her free time Rachel enjoys spending time with her 3 granddaughters Makayla, Raelynn, and Arabella. Rachel has been a part of our team since 2005.

  • Melissa Hudson, RDH

    Melissa graduated from Dental Hygiene School at Pasco Hernando State College in 2012 and joined our team in 2014. Melissa enjoys getting to know her patients and building lasting relationships with them. Outside of dental hygiene, Melissa enjoys staying busy with her husband, Bill, and their 2 daughters, Isabelle Rose and Harper Willow.

  • Colleen Wessan, RDH

    Colleen graduated from Oxford College of Dental Hygiene in Ontario Canada. She moved to Florida and has been a part of our team since 2018. Colleen is passionate about providing quality care and helping patients achieve good oral health. In her spare time Colleen enjoys the company of her husband, Hugh, and their pets Hank, Goose and Turkey.

  • Lisa Mather, RDH, BS

    Lisa grew up in Branford, CT. She graduated from the University of Maine with an AS in Dental Hygiene in 1992 and went on to receive her BS in Dental Hygiene with a minor in business from the University of New England. Lisa continues to stay current with continuing education classes. She still makes it a priority to educate patients about their dental health, and she especially loves establishing quality long-term patient friendships. She moved to Florida in the summer of 2021 and joined our practice in December 2021. In her free time, Lisa loves to take long walks with her dog, Miles, be outdoors, attend spin classes, cook, and spend time with her husband, son, and stepdaughter. 

  • Treena

    Treena is an Expanded Functions Dental Assistant who began her dental career in 1999 when she received her dental assisting certificate from Concorde Career Institute in Tampa. She joined our team in 2006.

  • Ashlee

    Ashlee is a Dental Assistant and joined our team in 2016.  Ashlee has been caring for dental patients since 2009.  She has a passion for dentistry that grows every day.  She loves helping patients obtain their perfect smile and healthy mouth.  During her free time, she enjoys cooking, baking, being outdoors and making memories with her twin boys and husband.

  • Tiffany

    Tiffany is an Expanded Functions Dental Assistant and joined our team in 2019. Tiffany’s passion for dental, combined with her empathetic personality, make her patients feel at ease. In her spare time, Tiffany enjoys spending time with her husband and family.

  • Angel

    Angel has been in the dental field since 1997 and is an Expanded Functions Dental Assistant who joined our team in 2021.  She is always smiling and strives to make her patients, especially those who are fearful, smile by the end of their appointment!  Angel spent most of her life in Wisconsin before she and her husband moved to Alaska and finally settled in Florida.  She enjoys spending time with her children and grandchildren.  In her free time, Angel can be found boating, fishing, going to the beach, and swimming.

  • Mekenna

    Mekenna is born and raised in Florida.  She graduated from the University of South Florida in May of 2023 after obtaining her Bachelor's degree in Cell and Molecular Biology. She has been a dental assistant since January of 2020, and has consistently worked to deliver perfection and comfort to her patients. In her free time, Mekenna loves to spend time with her family and friends, go to springs all over Florida, and try new restaurants and foods.

  • Maryellyn

    Maryellyn Graduated from Erwin Technical School in 2011 for Dental Assisting.  During her career as a dental assistant she learned how to work on the Administrative side of dentistry as well. She has apassion for both! Helping our patients, and treating them like family makes her day. In her freetime she loves being in the water, spending time with her family/son (Jordan).

  • Kelli

    Kelli joined the Administration Team in 2016.  She brought with her over 8 years of experience in the dental profession.  She and her husband enjoy traveling to watch their two sons play baseball and spending time with friends, family and their dog, Miggy.

  • Kimberly

    Kimberly began working in the dental field in 2000 while she was still in high school. She received her certificate for dental assisting in 2004 while living in Hawaii where her husband was stationed with the Marine Corps. Now the Insurance Coordinator for the office, Kimberly handles all the ins and outs of dental insurance processing.  During her free time, she enjoys cook-outs with friends, boating, DIY projects, and spending time with her husband, Adam and two children, Ryleigh & Tucker.

  • Casey

    Casey is part of the Administration Team. She received her BS in Biology from St. Leo University in 2003 and has been a part of our team since then. In 2019, she received her Expanded Functions Dental Assisting Certificate and occasionally utilizes that to assist with patient treatment. Casey enjoys spending time with her husband, daughters, and family, as well as being outside with her chickens and dogs.

Featured Links

Click to find out more

Hours of Operation


7:00 am-3:30 pm


7:00 am-3:30 pm


7:00 am-3:30 pm


7:00 am-3:30 pm







Our Location