Our team-based approach to patient care involves collaboration and coordination between our highly qualified psychiatrists and physician assistants. Watch the bio videos below to get to know your Expert Care team!

Charles Sweet, MD, MPH

Divyansu Patel, MD

M. Dennis Kinoti, MPAS, PA-C

Ashley Brannon, MPAS, PA-C

Kara Cantu, MPAS, PA-C

Keith Campbell, MPAS, PA-C


Jolly John, MPAS, PA-C

Jolly John is a physician assistant (PA) nationally certified by the National Commission for Certification of Physician Assistants. She graduated with her Bachelor of Science in Biology and General Studies at The University of Texas Pan American and then completed her Master of Science in Physician Assistant Studies at The University of Texas Rio Grande Valley. She is a native of South Texas but has spent most of her life traveling across the globe.

In addition to traveling, she also enjoys playing guitar, creating art, and putting down roots in her new hometown of Austin, Texas. Psychiatry has been a passion for her ever since she was a child and is very excited to be part of the Specialty Clinic of Austin team of experts.


Susie Cobb, MPAS, PA-C

Susie Cobb is a physician assistant (PA) nationally certified by the National Commission for Certification of Physician Assistants. She graduated with her Bachelor of Arts in Biology from The University of Texas at Austin and then completed her Master of Science in Physician Assistant Studies at Baylor College of Medicine. She has over 20 years of experience in the fields of Ob/Gyn and Internal Medicine. Throughout her career, she has had a special interest in the role patients’ mental health plays in their overall health and is excited to be part of the Specialty Clinic of Austin team practicing Psychiatry.

While at UT, Susie enjoyed playing the flute in the UT Symphony and was a member of the Longhorn Band. Hook ‘Em!

In her free time, she enjoys continuing to play flute in various musical groups, camping and traveling with her husband and two sons, and visiting family in her native Houston.


Amanda Hamala, MPAS, PA-C

Photo coming soon!

Amanda Hamala is a physician assistant (PA-C) nationally certified by the National Commission for Certification of Physician Assistants. Amanda grew up in Austin, TX and is happy to be back in her hometown. She graduated with her Bachelor of Science in Biology at Southwestern University and then completed her Master of Science in Physician Assistant Studies at University of North Texas Health Science Center. She enjoys exercising, jogging and paddle boarding on Lady Bird Lake, and spending time with friends and family. Psychiatry became a passion of hers during PA school and she is very excited to be part of the Specialty Clinic of Austin team.


Diego Santa-Ana, PA-C

Diego Santa-Ana is a physician assistant (PA-C) nationally certified by the National Commission for Certification of Physician Assistants. Diego graduated from Texas A&M University of Kingsville with a Bachelor of Science in Biomedical Sciences and a Bachelor of Arts in Psychology. He then earned his Masters of Science in Physician Assistant Studies at The University of Texas Rio Grande Valley.

Diego grew up in the RGV but is very much excited to call Austin, Texas his new home. Psychiatry has always been fascinating to Diego and he is greatly honored to join the Specialty Clinic of Austin team.

Apart from Psychiatry, Diego enjoys the outdoors, listening to live music and has a passion for cooking.


Brian Bonser, PA

Bio and photo coming soon!