Meet the Team

Dr. Lyndel Stripling

Dr. Stripling graduated from Baylor College of Dentistry in 1976, where he was selected as Outstanding Senior by the Delta Sigma Delta fraternity. After graduation, Dr. Stripling began a private practice in Longview, Texas, where he served as president of the Gregg County Dental Society and the Land of Pines Dental Study Club. He began his Dallas practice in 1988 and continues to be active in the Dallas County Dental Society. Dr. Stripling holds a fellowship in the Academy of General Dentistry and is a lifetime member of the American Dental Association® and the Texas Dental Association.

Dr. Stripling and his wife, Kathy, have six children and six grandchildren. His outside interests include photography, sculpting, music and hunting. He is dedicated to improving and maintaining healthy smiles with long-term relationships.

Dr. Sajjad Ashnagar

Dr. Ash is a full-time traveling periodontist, practicing in the Dallas-Fort Worth metroplex, Texas. He earned his periodontology diploma from the University of Michigan and is specialized in treating gum disease, dental implants and regenerative surgeries. He is licensed to perform IV moderate sedation and high-risk anesthesia.

Dr. Ash studied general dentistry at Tehran University of Medical Sciences, where he earned his Doctor of Dental Surgery. Six months after opening his private practice in Tehran, he immigrated to the United States and interned at the University of California Los Angeles (UCLA) periodontics program. Soon after, he was accepted at the University of Michigan periodontology residency program to specialize in gum surgery. After graduation, he chose to live in Dallas, Texas, and establish his traveling practice, serving the entire DFW area.

He has published numerous articles in peer-reviewed scientific dental journals and has been highly cited by dental researchers. He is a proud recipient of the Dr. and Mrs. Steven Meraw Periodontal Scholarship and is a member of the Dallas County Dental Society, the Fort Worth District Dental Society, the American Dental Association and the Michigan Periodontal Association.

Dr. Rachael O’Brien

Dr. O’Brien has a passion for dentistry. She offers a full range of services to provide a high quality of dental care, including diagnosing oral diseases and promoting oral health and disease prevention. She earned her Bachelor of Science in biology with a minor in chemistry from the University of Texas at Arlington and received her DDS from the University of Texas Health Science Center in Houston in 2013. She pursues continuing education opportunities every six months. She has also received advanced training through implant seminars. She is a member of the American Dental Association® and the Texas Dental Association, and she has been a member of the International Implant Seminars since 2015.

Dr. O’Brien lives in Lake Highlands with her husband and son. Outside of the office, she enjoys running, traveling, and spending time with friends and family.

Dr. Dan Stipe

Dr. Dan Stipe grew up in the small town of McAlester, Oklahoma, enjoying football and wrestling. He spent his free time working as a lifeguard, initially introducing him to CPR and beginning his interest in health care. He is a graduate of Oklahoma State University, where he studied biology and enjoyed cheering on the football team. Dr. Stipe continued on to the University of Oklahoma Dental School and graduated in 2011. He attended Wichita State University for a one-year elective residency. During his AEGD, he learned about dental implants and wisdom teeth extractions, gained extensive experience with root canal treatment, and built a better overall knowledge in general dentistry. Dr. Stipe continues to improve himself with over 600 hours of continuing education in the last 9 years since leaving the residency.

Dr. Stipe offers oral sedation and nitrous oxide and can help you with all your dental needs. His favorite part of his job are getting to know you, the patient, and helping meet your expectations. In his free time, Dr. Stipe enjoys biking and spending time with his wife finding great places to eat as big foodies. He also likes taking his dog, Bruce Wayne, on walks. He looks forward to meeting you and providing a great dental experience!

Meet Our Team

Our Team

At Lake Highlands Dental, our friendly team is here to make your visit with us a positive experience. Our team members are skilled in caring for your smile and have the knowledge you depend on to answer your questions. We have a diverse team with members who speak English, Spanish, Cambodian and Farsi to ensure that our dentists can effectively treat the members of our community. You can learn more about our dental team below, and if you would like to meet them in person, call our office at 214-613-1279 for your dental appointment in Dallas, Texas.

Cindy McCourt

Practice Manager

American Association of Dental Office Managment memberCindy started with our office in 2013 but began her career more than 35 years ago as a dental assistant. She graduated college cum laude with a BS in business and an MA in management. She is also a Fellow with the American Association of Dental Office Managers.

Cindy considers Lake Highlands Dental a rare gem in the dental world. At our office, we are truly helping patients improve their health along with their self-confidence. She appreciates the warm, inviting and comfortable atmosphere at our office and sees the conservative approach to treatments and the attention to each patient’s individual dental needs as factors in creating a rewarding visit. She has a passion for helping people live healthier lives and providing a comfortable place for their dental experience. She always tries to lead by example and lives by the motto: Treat everyone how she would like to be treated.

Cindy and her significant other David have five grown children and two grandchildren. Away from the office she enjoys hiking, dining and spending time with her family. She also volunteers for children’s charities such as the Byron Nelson Golf Tournament and serves as a CASA advocate.

Amber Decker

Insurance Specialist

Amber is a transplant from Colorado and has been with Lake Highlands Dental since June 2020. She is a 2013 graduate of the Academy for Dental Assisting Careers. She makes sure that our patients get the most out of their insurance and to help them maximize their benefits. She loves the positive, family atmosphere at our office!

When she is not at work, Amber looks forward to going to the lake and the beach, bowling and playing bingo.

Jenna Gillund

Dental Hygienist

Jenna began her dental career as a dental assistant in Dallas, eventually making her way to work in Beverly Hills, California. After gaining experience in general and cosmetic dentistry, she decided to further her career by becoming a dental hygienist. She has since relocated back to Dallas to be with her family and continue her journey at our office. She is passionate about the quality of care for her patients and the relationships they build, and she is always putting the patients’ needs first.

Pinny Sy

Dental Hygienist

Pinny has been with our practice for more than 20 years, and she holds a Bachelor of Science in dental hygiene. Pinny endeavors to provide outstanding quality of care to our patients, and she is proud to be part of a team of talented coworkers. Originally from Cambodia, she arrived in the U.S. in 1981 and speaks Khmer. She is married and has three girls, and she loves spending with her family.

Leticia Gutierrez

Dental Assistant

Leticia, one of our dental assistants, excels at making patients feel comfortable before and after their visits. She graduated from Skyline High School Career Development Center and holds a certification in dental assisting from the Floral Culture Cluster. Leticia loves spending time with her kids. She has three boys, Messiah, Israel and Isaac, and she had a girl in October 2020 named Victoria! She enjoys watching her two oldest children compete in football.

Jessica Webb

Jessi has been with our team since January 2021 and graduated college in 2006 with bachelor’s degree in education. Since she loves teeth, she decided to go back to school for her dental hygiene degree in 2019! But she still values education and believes it is the key to everyone bettering their oral health.

Jessi married her husband in 2006 and with three kids, she does not have any time for hobbies! She spends almost all of her spare time at the baseball and softball fields.

Dr Lyndel Stripling

8610 Greenville Ave., #150
Dallas, TX 75243



7:00 AM - 5:00 PM


8:00 AM - 2:00 PM


By Appointment Only