Board of Directors



dallas freyer

Dallas Freyer, R.N., C.A.S.C., President

Administrator, Corpus Christi Outpatient Surgery
Surgicare of Corpus Christi United Surgical Partners International

Dallas Freyer has served as the Administrator of Corpus Christi Outpatient Surgery since 2004 and also serves as the Administrator of Surgicare of Corpus Christi. Freyer is a registered nurse and certified surgery center administrator.

A graduate of Del Mar College Registered Nursing program, Freyer also serves on the Texas ASC Society Programs & Education committee and is a board member on the TASCS PAC.

Maggie Jeffries, MD, Vice President 

Dr. Maggie Jeffries is a private practice anesthesiologist in Houston, Texas. She received her anesthesia training at Johns Hopkins University, during which she served as a resident member of the American Society of Anesthesiology and the ACGME Resident Review Committee that reviews and certifies residency programs.

Following graduation, she became an assistant professor at M.D. Anderson Cancer Center, where she specialized in pediatrics and neuroanesthesia. During that time, she was an active contributor to diverse areas of research, including cerebral oximetry, post-dural puncture headache, infectious disease, and liver failure. She is a published author in several national journals, including Regional Anesthesia, Journal of Cardiothoracic Anesthesia, The Neurologist, and Regional Anesthesia and Pain Medicine, The Neurologist, Liver Transplantation and Surgery, and Anesthesiology News.

In private practice since 2010, Dr. Jeffries has extensive experience in anesthesia for ambulatory and office-based surgery. A partner in Avanti Anesthesia, she is active in all aspects of medical care including medical director, medication and equipment ordering, electronic documentation and quality improvement.


Adam Hornback, RN, CASCS, Treasurer

Adam Hornback is the administrator of North Texas Team Care Surgery Center in Mesquite Texas since 2012. Hornback is an operating room nurse who has been in the ambulatory surgery center environment for about 15 years.




Board Members


 Susan Cheek, C.P.A., C.H.C.C., C.A.S.C., President

Administrator, Dallas Endoscopy Center; IV Anesthesia Services, PLLC; 
CEO, Creative Empowering Solutions, LLC

Susan Cheek has served as the administrator of the Dallas Endoscopy Center and IV Anesthesia Services since 2006. Cheek is a certified public accountant, certified healthcare compliance consultant and certified surgery center administrator .
A graduate of Texas A&M University with a B.B.A. in accounting.




Christopher Kralik, BSN, RN, CGRN

I am a Registered Nurse with over 15 years of experience.  I started my career in Emergency Nursing.  After nine years, I made the switch to Endoscopy Nursing and have been working in this field for the past six years.  I joined Digestive Health Center of Plano in January 2020 as Center Director.  In 2021, we opened a second ASC in Allen and I transitioned to Administrator for both the Plano and Allen ASCs at that time.  Since joining the ASC community in 2020, I have been involved with TASCS as a member, Town Hall speaker, Conference Committee contributor, and a Conference panel speaker this year.  While I am still somewhat new to the ASC world, I am passionate about my work and the safe and cost-effective services that ASCs provide to our patients and communities.  I look forward to continuing to grow and contribute to TASCS and the ASC community.


Kayla Schneeweiss-Keene, BSN, RN, CASC

ASC Administrator, Mann Cataract Surgery Center

Kayla’s career began by receiving her Bachelor of Science in Nursing degree from Southeastern Louisiana University where she made Presidents list six times and Deans list once during her college studies.  She received honors with inductions to The Thirteen Club, Gamma Beta Phi Honor Society, National Society of Collegiate Scholars, National Scholars Honors Society, and Student Nurse Association while receiving a four-year letterman on the Southeastern Louisiana University Track and Field and Cross-Country Team.

 Upon graduating, Kayla moved to Houston, Tx where she became a part of the Mann Cataract Surgery Center family.  She became lead nurse and assistant to the Director of Nursing within one year of hire, then became ASC Manager within the next two years, Director of Nursing four years later, and ASC Administrator four years after that.   




Cheryl Garmon, DNP, RN, CASC

Director, Heaton Laser & Surgery Center  Heaton Eye Associates







James McClung

Chief Development Officer, Reliant Medical Services 
[email protected]


James McClung BSN, RN has been in the nursing profession for 18 years. McClung served in the US Army Reserves for 14 years, as a nurse, in addition to his civilian work. He has developed, consulted, and managed ASCs from emergency management ,safety officer and facilities manager roles to a clinical nurse, director of nursing, and nurse administrator. McClung is an expert in gap analysis and is the Chief Development Officer of Reliant Medical Services. RMS is the industry leader in ASC development, ASC development enhancement, EMR implementation, equipment procurement, gap/process consulting, and survey readiness. James, additionally to serving with TASCS, is a continuing member of AAAHC’s Expert Content Committee (ECC-MDS). He supports ASCs because they are tailored to and focused on the singularity of health care, the patient, and the patient experience.

Sunshine Moore, JD

Administrator, Coastal Bend Eye Center and Coastal Bend Ambulatory Surgical Center

Sunshine received her BS in Chemistry from Emory University 1996 and her JD from Concord University 2007. She has held multiple positions in the lab and research industry before becoming an administrator. 




Akshay Tavkar, MBA, CMPE, CASC

Director | Ambulatory Surgery Center
Kelsey-Seybold Clinic

Akshay Tavkar is the Director of the largest licensed non-hospital free-standing ASC in Texas. He recently completed a multimillion dollar renovation project in an ASC that performs nearly 25,000 procedures a year. Through the course of this expansion and remodel reaching 38,000 square feet, he and his team managed zero downtime for surgery and increased case volume and patient satisfaction scores. 


Laura Schneider, RN, CGRN, CASC

Sr. Director, Clinical Services

Laura Schneider has 35 years of GI endoscopy nursing experience.  She has been certified in GI nursing since 1990.  Previous GI nursing activities include SGNA Newsletter Editor, ABCGN Board of Directors, past president of Louisiana and Texas SGNA, and presenter for multiple SGNA regional and national meetings.  In 2003 Schneider was invited to China to speak at an infection control meeting on endoscope reprocessing standards in the US which ignited her passion for endoscope reprocessing.  She is currently a clinical director for AmSurg Corporation where she works with the center directors for 18 outpatient GI endoscopy centers in Texas, Oklahoma and Louisiana.   


Jill Thrasher, CASC

Baylor Scott & White Sports Surgery Center at the Star

Jill Thrasher is currently at Baylor Scott & White Sports Surgery Center at The Star, which was a de nova facility that opened May of 2018.  Thrasher has more than 25 years of experience in the healthcare industry with 13 years, focusing on the ASC business.  She earned her bachelor’s degree in Healthcare Administration from Texas State University.  Thrasher became CASC certified in 2010.  She strives for excellence with a focus on quality of care, patient safety and infection control.  Baylor Scott & White Sports Surgery Center at The Star is a state-of-the-art, orthopedic-driven, free-standing ASC with six ORs.  The acuity of cases is driven by a robust total joint program, outpatient spine procedures, and arthroscopic hip, knee and shoulder procedures.  The facility maintains Joint Commission Accreditation, licensure through the State of Texas and CMS certification.  Thrasher credits the facilities successes through her joint venture partner as well as her phenomenal devoted staff and extraordinary physicians.  Thrasher states she is blessed to have this opportunity to manage a facility that raises the bar with their exceptional standards.


Dr. Gaurav Aggarwala

Cardiologist and Circular Pain Specialist
Achy Legs

Dr. Gaurav Aggarwala is an interventional cardiologist and an active entrepreneur, as he founded Pulse Physician Organization in May 2019, and he has grown that to nine clinics in Houston and surrounding areas. The group now provides internal medicine, cardiology, family practice, podiatry, pain management and wound care with hyperbaric medicine to the communities it serves. He established one of the first ASCs in Houston, which was cardiology-based, and has now expanded his to include a second ASC in Crockett, providing much-needed outpatient care in East Texas. Along with a very busy clinical practice, he is an active researcher with numerous publications and abstracts.



Executive Director
Krista R. DuRapau

Eric Woomer

Eric Wright