Our Staff

Dr. Ronald G. Morton, MD, FAA0/HNS, East Texas Sinus & Dizziness Center in Longview, TXRonald G. Morton, MD, FAAO/HNS
Fellow-American Academy of Otolaryngology/Head and Neck Surgery
Diplomate-American Board of Otolaryngology
Past President of the Texas Association of Otolaryngology

Dr. Ronald Morton is a board-certified Otolaryngologist, a Diplomate of the American Board of Otolaryngology. He is a Fellow of the American Academy of Otolaryngology/ Head and Neck Surgery. Dr. Morton also belongs to the Texas Association of Otolaryngology, where he served on the Board of Directors from 2004-2012 and was President from 2006-2007. He is a member of the Texas Medical Association and Gregg/Upshur County Medical Society.

Born in South Texas and raised as the youngest of four children, Dr. Morton came to the field of medicine with a genuine desire to serve others.

“Our faith teaches us a selfless devotion, and my field allows me to concentrate on that every day. It is truly a blessing.”

After completing his medical school training in 1985 at UTMB, Galveston, where he was honored as “Who’s Who in Medical Professionals” and on the National Dean’s list for academic excellence, Dr. Morton completed his general surgical internship in 1986 and Otolaryngology/Head and Neck Surgery residency in 1990. At UTMB-Galveston, he trained under Byron J. Bailey, MD, FACS, one of the most respected specialists in the country.

In 1990, Dr. Morton began practicing in Paris, Texas until he moved to Longview in 1997. While caring for all disorders of the ear, nose and throat, Dr. Morton’s practice is most clearly recognized for its excellence in the care of sinus and inner ear disorders. He is known by many as the “dizzy doctor”, having the most complete state-of-the-art facilities in the area for the evaluation and treatment of all forms of dizziness. He has lectured the area emergency physicians on the emergent evaluation of the dizzy patient, and stands on call to assist them each day with the treatment of these patients.

Most recently, Dr. Morton’s practice has been recognized as a Center of Excellence for the performance of Balloon Sinus Dilation, the only such center in East Texas. He was informed of this honor just before attending the National Open Forum in New York City in July 2014, and he has maintained that designation ever since. Dr. Morton and his staff not only perform this procedure regularly in their offices, but have been asked to consult with outside physicians to assist in their learning the latest techniques in the treatment of sinusitis. He has carried out live broadcast satellite TV cases to educate other doctors throughout the country. “This is a very distinct honor for me and my office staff. It reflects our dedication and recognized results in the treatment of patients suffering for recurring acute and chronic sinusitis.” Dr. Morton serves as a consultant for Entellus Medical, Inc., a leading sinus surgical company.

Dr. Morton is excited about the future of his profession. “Even with all of the uncertainty in health care, we continue to strive for the highest quality, most compassionate care we can give to our patients. We are thrilled to be providing outcome-based measurements for the continuing evaluation of the quality of the care we deliver. As technology advances, we are poised to move with it to continue to make it available to as many patients as we can.”

Dr. Morton and his wife Carolyn have been married for 33 years, raised nine children of their own, and have three grandchildren. They are proud to call Longview their home.

Michelle Heath, MS CCC/A, East Texas Sinus & Dizziness Center in Longview, TXMichelle Heath, MS CCC/A

Michelle Heath joined Dr. Morton’s team in 2014, bringing with her a wealth of experience in diagnostic and clinical testing in the field of audiology and otolaryngology.

She received her BS in Education from the University of Arkansas-Fayetteville and her Master of Science in Audiology from the University of Arkansas School Of Medical Sciences in Little Rock, Arkansas. She is accredited by the American Speech-Language and Hearing Association. Having been in practice for over 13 years as an audiologist, she worked at the prestigious Dallas Ear Institute with Dr. Bob Peters,  performing diagnostic testing on patients with a wide range of disorders. According to Dr. Peters, she is one of the most valuable audiologists he has had on his staff. She moved back to East Texas after her marriage and practiced in Texarkana before coming to the Longview/Mt. Pleasant area, where she and Dr. Morton were introduced.

Since her arrival, Dr. Morton and his staff have seen first-hand her expertise in the testing and diagnosis of patients with a wide range of hearing and inner ear disorders. “She was a welcome addition to our staff. Not only is she a wonderful professional, but has a very warm, caring nature that the patients notice immediately. I believe she reflects the qualities we want our staff to demonstrate to our patients.”

Michelle and her husband Hunter have settled in Longview with their two children, Hudson and Emma Grace.

Caroline Koen, CMS, East Texas Sinus & Dizziness Center in Longview, TXCaroline Koen, CMA
Medical Assistant and Surgical Tech

Caroline has worked for Dr. Morton in varying capacities for approximately 13 years. Beginning as a filing clerk and receptionist in high school, she has since worked in a variety of positions around the office.

During this time, Caroline completed her training as Medical Assistant, and is certified by the American Association of Medical Assistants. She now serves as Dr. Morton’s Medical Assistant and surgical tech in his office operating rooms, where the practice has been recognized as a Center of Excellence in the performance of in-office Balloon Sinuplasty. She has become the most experienced technician in the performance of these procedures in the East Texas area.

Caroline served in the Army National Guard for five years, becoming a member of the first National Guard Airborne Battalion out of Austin, Texas for four years. She and her husband Emmett, who also served in the Army National Guard, live in Longview with their children Emmett, V, Maxwell and Adaline.

Angela Butler

Angela has been working at the East Texas Sinus and Dizziness Center since 2014. She brings with her approximately 21 years of experience, an infectious spirit and her faithful service to the practice that reflects her Christian faith and dedication to the compassionate care of each and every one of our patients.

Sam MortonSamuel Morton, EMT, MA

Sam joined the East Texas Sinus and Dizziness team in April, 2017. He brings with him experience as a Longview Firefighter along with his Emergency Medical Technician and Paramedic training. His interest in healthcare came naturally through his experience with the Longview/Gregg County Community Emergency Response Team before becoming a Longview Firefighter. He was also trained as an emergency services instructor through his training in National Emergency Service Academy in Civil Air Patrol.

He carries out many duties in the office including assisting with Dr. Morton’s advanced sinus procedures and as a medical assistant. He is pursuing a career in nursing with plans on becoming a nurse practitioner.

Dr. Rhonda Towers SiddensRhonda Towers Siddens, PhD, MSN, APRN, FNP-C, CNE
Nurse Practitioner

Dr. Siddens recently joined the East Texas Sinus team in 2018 but brings over ten years of experience providing care to acute and chronic illnesses as a Nurse Practitioner and registered nurse.

She received her BS in Nursing and her Masters of Science in Nursing from the University of Texas at Tyler. Dr. Siddens also brings over six years of experience as a collegiate professor having served as an adjunct online professor at Excelsior College in Albany, NY and currently serving as a Clinical Assistant Professor (online) at Sacred Heart University in Fairfield CT.

Dr. Siddens has been a welcomed addition to the East Texas Sinus family.

grace mortonGrace Morton
Medical Assistant and Surgical Tech

Grace joined the staff of East Texas Sinus and Dizziness Center in the summer of 2013 doing insurance verification’s. Since then she has assisted in many positions and is currently working for Dr. Morton and Dr. Tower-Siddens as a medical assistant and surgical tech in both offices.

Grace took an interest in the medical field during her time spent in the Longview Fire Explorers program, the Civil Air Patrol, and the Community Emergency Response Team for Longview and is currently pursuing her degree in Nursing.