Lonestar | Physicians & Staff
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Physicians & Staff




CEO, Medical Director
FIPP, Board Certified in Anesthesiology and Pain Management, ABA




Dr. Harmer attended medical school at University of Texas Health Science Center at San Antonio. He served his residency in Anesthesiology at Duke University where he received honors of Education Scholar and Outstanding Contributor to Medical Student Education. Dr. Harmer completed an accredited fellowship in Pain Management by the Department of Anesthesiology at the University of Utah. While there he worked alongside internationally respected leaders in the specialty, including two previous presidents of the American Pain Society.



Stacy G. Carr, MPAS, PA-C






Stacy G Carr joined Lone Star Pain Medicine in 2008 as a physician assistant. Stacy graduated from Tarleton State University in Stephenville, Texas with a Bachelor of Science in Animal Biology in May 2001. He then graduated from the University of North Texas Health Science Center in Fort Worth, Texas, where he completed the Masters Physician Assistant Studies in May 2005. Mr. Carr is a nationally certified physician assistant by NCCPA and is licensed by the Texas State Board of Medical Examiners. He has extensive hospital and clinical experience in orthopedics.


Tim Marcyes, MPAS, PA-C






Timothy Marcyes joined Lone Star Pain Medicine in 2014 as a Physician Assistant. He earned a Bachelor’s Degree in psychology and biology from Southwest Texas University in San Marcos, Texas in 1991. While serving in the U.S. Army for 11 years he graduated with his second Bachelor’s Degree in Physician Assistant Studies from The University of Texas Health Science Center in San Antonio, TX in 1998 and later completed his Master’s Degree in Family Medicine from University of Nebraska medical Center in Omaha, Nebraska in 2000. He served in the U.S. Army as a Physician Assistant until 2003 and has worked in pain management since leaving the service.


Chris Otte, COO/Business Director







Chris Otte joined Lone Star Pain Medicine in January 2008.  As the Business Director, he oversees the day-to-day operations and staff for Lone Star Pain Medicine, Town Creek Pharmacy, Medtech Resource Management and Weatherford Anesthesia Associates. Prior to moving to Weatherford in 2008, he spent over 15 years in executive management and financial/sports marketing with USAA and the San Antonio Spurs/Alamo Bowl in San Antonio.

Kayla Dunlap, RN Nurse Manager







Kayla Dunlap joined Lone Star Pain Medicine in 2017 as an RN and is currently the Nurse Manager. In her role she oversees the rooming of patients, answering the nurse line, refill requests and assisting with in-house procedures as well as many other duties. She is a 2008 graduate of Covenant School of Nursing in Lubbock, Texas. During her free time she loves spending time with her active household that includes her husband and two children.

Marcia Heilner, Accounting Manager







Marcia Heilner joined Lone Star Pain Medicine in 2017 as the Accounting Manager. She is responsible for the financial aspects of Lone Star Pain, Medtech Resource Management, and Weatherford Anesthesia Associates. Marcia graduated from Clarion University of Pennsylvania in 1997 with a major in Accounting. She has been in various accounting positions in the manufacturing fields for most of her career. Prior to moving to Granbury in 2017 she resided in Fort Worth for 10 years but her hometown residency will always be Pennsylvania. (Go Steelers!) When not working or spending time with her family, she enjoys traveling and taking in the sights and sounds of different cities and cultures.

Bethany Murphy, Office Manager







Bethany Murphy joined Lone Star Pain Medicine in 2002 as a billing specialist, and is currently the Office Manager. She oversees patient reception/scheduling, new patient referrals, billing, and provider credentialing. She graduated from Tarleton State University with Bachelor degree in Business Administration.  A native of Parker County, she loves spending time with her husband and two children.

Leslie Stark, IT Manager







Leslie Stark joined Lone Star Pain Medicine in 2006 as the IT Manager. She is responsible for maintaining the business servers and computers, managing office security and the phone systems. She is a proud Weatherford native and in her spare time, she is a reef tank enthusiast who enjoys researching and learning about all of the inner-workings of our marine environments.

Melissa Torrentos – Administrative Manager







Melissa Torrentos joined Lone Star Pain Medicine in 2016 as the Administrative Coordinator, and is currently the Administrative Manager. She is responsible for many things including credentialing, marketing, HIPAA and OSHA compliance. Melissa grew up in Southern California and is a recent transplant to Texas. Outside of work she enjoys many outdoor activities with her husband, two sons and dogs “Dug” & “PJ”.