Tina Bartels

Bariatric Service Manager

Tina Bartels is a consultant in the process of change. As the bariatric service manager at Columbia Bariatric Associates, she helps patients with nutrition, dietary habits and lifestyle choices to be successful after a bariatric procedure.

“I help them make the changes that are necessary throughout their weight loss journey,” Bartels says. “I help make the process more manageable.”

Bartels graduated from Central Methodist University in Fayette, Mo., as an RN in 1987. She worked at Boone Hospital in Columbia for two years before joining Columbia Surgical Associates to assist Dr. Walter Peters in surgery, perform office procedures and provide patient care. She left Columbia Surgical in 1999 for family reasons, but returned to the practice in 2009.

“I came back because I love working with the staff and doctors because there is, and always has been, a mutual respect that exists between us,” Bartels says. “We work as a team.”

Today, in addition to patient education, Bartels performs post-op LapBand adjustments and works with medical caregivers to coordinate the work done at Columbia Bariatric with the hospital’s program. She also reaches out to primary care physicians to share information on the services the practice provides for patients who are looking for a surgical solution and are appropriate for the LapBand procedure.

As a consultant in the process of change, Bartels’ role may be multifaceted, but her goal is singular. “I help patients become successful,” she says. She works hand-in-hand with each patient who comes to Columbia Bariatric to tailor a plan specifically for them.

“I believe in our program,” Bartels says. “It changes lives.”


Ashley Hardesty


Ashley Hardesty joined the General Surgery Division of Columbia Surgical Associates in 2016 after obtaining her Nurse Practitioner license. She has advanced education and clinical training and provides a wide range of preventative and acute health care services.

She completed her bachelor’s degree at the University of Missouri in 2010 and worked as a registered nurse for Cardiac Intensive Care, Emergency Medicine, and Acute Care Surgery. She then graduated from Maryville University with her Master of Science in nursing degree and became a board-certified Family Nurse Practitioner.

Working in collaboration with the General Surgeons, Ashley takes health histories and provides complete physical examinations, provides care for post-operative patients, prescribes and manages medications and other therapies, provides health teaching and supportive counseling with an emphasis on prevention of illness and health maintenance, and refers patients to other health professionals as needed within the physician-nurse practitioner relationship. Additionally, Ashley counsels’ bariatric patients on nutrition, dietary habits, and lifestyle choices to help them succeed. She performs adjustment of LapBands and orders necessary testing for complications and follow up.


Stephanie Long

Patient Service Representative

Stephanie has been a valued team member at Columbia Surgical Associates for over 30 years. Her CSA journey started back in August of 1987. Prior to joining our team, she graduated in May of 1987 from Northeast Missouri State University with her certificate in Medical Assisting. Of Stephanie’s many roles at CSA, she is an important part of maintaining our Bariatric program. She has been a part of this team since its initiation. Stephanie is one of the first people our patients come into contact with. She provides patients with valuable information, gives directions of how to get started, and makes initial appointments. Additionally, she works hand-in-hand with patients’ insurance companies and coordinates pre-operative and post-operative appointments among other duties.