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Our Staff

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Genevieve Potts, APRN, MSN, FNP-BC

Genevieve Potts FNP-BC was raised in the Rio Grande Valley and relocated to San Antonio in 1990. Genevieve graduated from the University of the Incarnate Word and began her career as a Registered Nurse at Methodist Hospital in San Antonio, in 1994, working in the Emergency Room. She later went on to serve the community as a Home Health nurse before returning to the Emergency Room at North Central Baptist hospital in 2002.

Genevieve returned to school in 2005 and graduated from Texas A&M Corpus Christi, where she received a master’s of Science degree in Nursing, graduating with honors, Sigma Theta Tau, and is currently a Board Certified Family Nurse Practitioner. She has had additional training in the field of Rheumatology through the American College of Rheumatology’s Nurse Practitioner and Physician Assistant Postgraduate Rheumatology Training Program. She joined Rheumatology Associates in 2008.

Genevieve has a husband and two children. Her hobbies are swimming, biking and spending time with her family.

Advanced Practice Registered Nurse
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Marizu Borrego, PA-C

Marizu Borrego MPAS- PA-C was born in Monterrey, N.L. Mexico. She has lived in San Antonio for the last seven years. Marizu attended medical school at Universidad de Monterrey from 1995-2000. She has an Associate in Arts Degree from Southwest Texas Junior College, where she was inducted into Phi Theta Kappa International Honor Society. She then graduated from The University of Texas Health Science Center at San Antonio with a Bachelor of Science in Health Care Sciences and a Master’s in Physician Assistant Studies in 2008. There she was a recipient of The San Antonio Hispanic Foundation scholarship. Before joining Rheumatology Associates, she worked as a Physician’s Assistant in Family Practice and Pain Management.

Marizu loves to spend time with her son. Her hobbies include traveling, reading, and listening to music.

Physician Assistant
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Sarah White, PA-C

Sarah White is from the West Texas area. She attended the University of Texas Permian Basin for her undergraduate studies and then obtained her physician assistant training at Texas Tech Health Science Center in 2001. She spent the first 5 years of her career in Internal Medicine. She relocated to San Antonio with her husband in 2006. Before joining Rheumatology Associates, her clinical experience included the fields of Asthma and Allergy as well as Hematology and Oncology.

In her free time she enjoys spending time with her husband and two little girls.

Physician Assistant
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Julia Hargesheimer, ANP-BC

Julia Hargesheimer is originally from San Antonio, TX. She graduated from the University of Texas at Austin with a degree in nursing. She then moved to Seattle, Washington where she started her career as a Registered Nurse in the Cardiothoracic ICU at University of Washington Medical Center. During her time as an RN, she started graduate school for her Masters in Nursing. She graduated the program and earned board certification as an Adult Nurse Practitioner. It was during her graduate studies that she was introduced to rheumatology. She returned to San Antonio upon gradauation and started working in Rheumatology as a nurse practitioner. She joins Rheumatology Associates of South Texas with almost 6 years of experience in rheumatology.

Julia has a husband and three children. Her hobbies are running, soccer, live music and spending time with her family.

Adult Nurse Practitioner
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Jennifer Apodaca, PhD, PA

Jennifer J. Apodaca was raised an Army brat, but her family is from Colorado. She spent four years in the Air Force and three years in the Texas Air National Guard. She has lived in San Antonio since 2003. Jennifer attended Angelo State University for her undergraduate studies. She obtained her PhD in Molecular Medicine and Masters of Physician Assistant Studies at the University Of Texas Health Science Center at San Antonio in 2008 and 2011 respectively. Prior to joining Rheumatology Associates of South Texas she worked in primary care in Seguin, Texas and on Fort Sam Houston military installation.

Jennifer enjoys reading and spending time with her husband and two children.

Physician Assistant
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Jennifer Zavala, PhD, MPAS, PA-C

After growing up in Houston Texas, Mrs. Zavala moved to San Antonio, where she earned a Bachelors Degree in Nursing from University of Incarnate Word in 1997. She earned her Master of Science in Nursing in 2011 from The University of Texas Health Science Center at San Antonio. Upon graduation with her Family Nurse Practitioner (FNP), she was inducted into Sigma Theta Tau National Nursing Honor Society. She is Board certified by the American Nurses Credentialing Center (ANCC) and holds a certification from the Texas Board of Nursing as an Advanced Practice Registered Nurse (APRN). She brings 19 year of patient care experience in Intensive Care, Emergency Room, Surgical, Radiology, Internal Medicine, Rheumatology and Primary Care to Rheumatology Associates of South Texas. She is a member of the American Academy of Nurse Practitioners and Association of Rheumatology Health Professionals. Her personal Nurse Practitioner philosophy includes taking a holistic approach to treating her patients.

Mrs. Zavala and her husband spend most of their time on the football or baseball sidelines cheering their two sons along. Hobbies include yoga, running and spending time volunteering.

Family Nurse Practitioner
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Joni Freeman-Trudo, PA-C

Joni originally hails from West Texas but calls San Antonio her true home. She is a Summa Cum Laude graduate from The University of Texas Health Science Center at San Antonio where she earned her Bachelor of Science degree in Physician Assistant Studies in 2004. Prior to becoming a Physician Assistant Joni worked as a Registered Respiratory Therapist, spending the majority of her time in critical care areas like the emergency room and ICU’s. She joins Rheumatology Associates with clinical experience in primary care, urgent care/emergency medicine and hepatology with a focus on viral liver disease. She is certified by the National Commission on Certification of Physician Assistants and is licensed by the Texas Medical Board.

In her spare time Joni enjoys spending time with her family, reading and watching good movies.

Physician Assistant
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Kay Millican, FNP-BC

Kay Millican FNP-BC is a certified Family Nurse Practitioner who was born in Levelland, Texas and raised in the West Texas area. She completed her bachelor of science in nursing degree at Angelo State University, then continued her education at Texas Tech University Health Science Center in Lubbock, Texas graduating with honors with her Masters in Nursing and Family Nurse Practitioner Certification. During her time at Texas Tech she completed her thesis focused on inflammatory diseases, was inducted into Sigma Theta Tau honor society, received the President’s Award for Excellence in Nursing, and was nominated by the faculty and awarded a national outstanding nurse practitioner student honor by Journal of Advanced Practice Nursing in 1996.

Kay has practiced in the San Angelo area since graduation primarily in the areas of urgent care/occupational medicine, orthopedics, and for the last 3 years in Rheumatology. She and her husband are relocating to San Antonio where he grew up. They have 3 daughters, and 2, soon to be 3 granddaughters.

Kay and her husband are active gardeners. She also enjoys spending time with her family, salt water fly fishing, jogging and playing tennis.

Family Nurse Practitioner