Brad venghaus, MD
Chief Executive Officer 

Dr. Venghaus is a practicing, board-certified Internal Medicine physician who serves the Austin, TX area. He is able to treat a wide variety of conditions from acute illnesses to chronic diseases such as diabetes, asthma, or COPD. See link below for complete profile on Dr. Venghaus. Thrive Medical was founded by Dr. Venghaus in 2018.

gail crear, MD


Dr. Crear is a caring and dedicated Primary Care Physician who has been practicing Internal Medicine in Texas since 2013. She feels it is important to utilize both medical and lifestyle strategies to achieve the best outcomes for her patients.



Shaina McCullough is a board-certified physician assistant who has focused on excellent outpatient primary care medicine services. She enjoys serving a diverse patient population and empowering patients in their helath. Prior to joining Thrive Medical she worked in psychiatry and realized mental health and physical health are intricately linked. 


Kohlbe Thomas is a board-certified physician assistant that offers a number of primary care services. She enjoys treating the wide variety of medical conditions encountered in Primary Care and is particularly passionate about counseling patients on lifestyle changes and the role that daily habits play in overall health. She has worked in hospital medicine, psychiatry, orthopedics and pain management but chose to transition to primary care to allow her to apply all her areas of expertise.  

Brad Venghaus Thrive

Dr. Brad Venghaus 

Dr. Gail Crear

Shaina McCullough

Shaina McCullough PA-C