Providers

Amy Van Dorfy, MD, is a board certified family physician and native Texan. She was born in Houston, Texas and attended The Kinkaid School. She then moved to Cambridge, Massachusetts and graduated from Harvard College. After college she moved to New York City and worked for the City of New York Child Welfare Administration and then for the State of New York. Dr. Van Dorfy then moved to San Antonio, Texas and entered medical school at The University of Texas Health Science Center.

After medical school, Dr. Van Dorfy entered residency with the University of Texas Medical Branch affiliated family medicine program at Conroe Regional Medical Center north of Houston. After completing her residency, she spent a year doing home visits and hospice for homebound seniors in Houston and acting as Assistant Faculty for the Conroe Family Medicine Residency program.

Dr. Van Dorfy moved to the Highland Lakes in 2003 with her husband Peter Gosselink, MD. Together with Dr. Gosselink and Joanna Guenther, RNC, FNP, she was one of the founding providers of the rural health clinic Seton Marble Falls. Dr. Van Dorfy also served as the Medical Director of the Seton Children's Care-a-Van for three years.

In 2005, she went into private practice to start Live Oak Medicine. The next year she welcomed the birth of her first child.

Dr. Van Dorfy currently serves as delegate to the Texas Medical Association from the Burnet Lampasas County Medical Society. She is also the President of the Burnet County Hospital Authority and Vice President of the Highland Lakes Medical Fund. She currently teaches medical students as Assistant Faculty for the University of Texas Medical Branch at Galveston.

Peter G. Gosselink, MD, is a board certified family physician and native Texan. He was born in Houston, Texas and attended Springwoods High school. He then moved to the Texas hill country to attend Southwestern University in Georgetown, Texas, where he graduated Magna Cum Laude in Biology. After college he moved to Galveston to attend medical school at The University of Texas Medical Branch. He graduated with honors (AOA) in 1999.

After medical school, Dr. Gosselink entered residency with the University of Texas Medical Branch affiliated family medicine program at Conroe Regional Medical Center north of Houston. He then returned to UTMB in Galveston to complete his residency. Dr. Gosselink served as the chief resident of the UTMB Family Medicine residency.

Dr. Gosselink moved to the Highland Lakes in 2003 with his wife Amy Van Dorfy, M.D. Together with Dr. Van Dorfy and Joanna Guenther, RNC, FNP, he was one of the founding providers of the rural health clinic Seton Marble Falls. Dr. Gosselink also served as the Medical Director for Seton Highland Lakes Hospice.

In November of 2006 he welcomed the birth of his first child, and in 2007 joined Dr. Van Dorfy at Live Oak Medicine.

Dr. Gosselink currently serves as the Vice President of the Burnet Lampasas County Medical Society. He is also the Medical Director of the Lighthouse Hospice Marble Falls branch. He volunteers to teach in the local "Do Well, Be Well" diabetic education program. Additionally, he teaches medical students as Assistant Faculty for the University of Texas Medical Branch at Galveston.

Ronald W. Johns, M.D., Ph.D., a Board certified Internal Medicine physician was born and raised in rural Tennessee. After graduation from U. Tennessee Martin, he continued his education at Louisiana State University where he earned his Ph.D. in Microbioloy.

He served as a Microbiologist and Captain for the US Army at Ft. Sam Houston, Texas and then continued in the Active Reserve retiring as a Lt. Colonel. After a successful career in microbiology with the State of Texas, Dr.Johns decided to enter Medical School in 1989 at the U. Texas Health Science Center in San Antonio.

After graduation he completed Internal Medicine Residency at the UT Health Science Center in San Antonio and became Board certified. He has over 13 years experience in primary care in San Antonio and Marble Falls.

Dr. Johns and his family enjoy life on their farm in the Hill Country.

Michael Henderson, PA-C, received his Master's degree in Physician Assistant Studies from Texas Tech Physician Assistant Program in 2001. With the majority of his experience being in Family Medicine, he also has practical experience in General Surgery, Diabetes, Endocrinology, Urgent Care, and Occupational Medicine.

Michael and his wife Nancy, along with their three dogs, live in Kingsland. Their 2 children and 3 grandchildren all reside in Texas.

Michael is a member of the American Academy of Physician Assistants, the Texas Academy of Physician Assistants, and the Association of Family Practice Physician Assistants. He speaks English and Spanish.