Services
LGBTQ PRIMARY CARE
HIV Speciality Care
Transgender Health Care
PrEP and PEP Prescription
On-Site Labs
On-Site Pharmacy
Meet Our Providers
Dr. Chase Cates, DO, MPH, AAHIVS
Medical Director Physician - LGBTQ Healthcare, HIV, Internal Medicine
Frequently Asked Questions
Can I pay out-of-pocket?
What if I do not have insurance and cannot afford to pay out-of-pocket?
Dr. Chase Cates, DO, MPH, AAHIVS
Medical Director Physician – LGBTQ Healthcare, HIV, Internal Medicine
Dr. Chase Cates grew up as a closeted kid in Dallas, TX. Seeing the consistent discrimination of LGBTQ people faced kept him in the closet until medical school.
He obtained a bachelor’s degree in biology from San Angelo, TX, and a Masters Degree in Public Health in College Station. TX. He studied in Lake Erie College of Osteopathic Medicine at Seton Hill for medical school, and completed his clinical rotations in Elmira, NY. During this time, he was on an away rotation at an HIV clinic in Dallas that ignited his passion to help this demographic. After finishing medical school, he did his residency in Internal Medicine in Searcy, AR.
While in Arkansas, he witnesses the discrimination LGBTQ people face in healthcare firsthand. He experienced hate for being engaged to his partner. He had nurses make comments behind his back. He was at his limits with these abuses and did what he could and educated my peers around him. He presented several lectures regarding LGBTQ health issues, so others were aware of what people faced. This led him to be the first to complete a fellowship in LGBTQ Healthcare and HIV at University of California at Los Angeles (UCLA). He is prepared to take what he has learned to provide care for his community in the south, where he feels it is desperately needed. He is proud and excited to be joining AARC in providing that care.
Dr. Manuel Endo Carvajal, MD
Physician, Infectious Disease
Dr, Endo was awarded his Doctorate in Medicine from Universidad Libre in Cali, Colombia. He did his social service training transferring critically ill patients from isolated communities in the Colombian pacific coast to high-complexity medical centers located in the most important cities of Colombia. Subsequently, he completed his Residency in Internal Medicine and Fellowship in Infectious Diseases at the University of Texas Health Science Center in San Antonio, Texas.
Dr. Endo has a special interest in the prevention and treatment of metabolic diseases of patients living with HIV, gender-affirming therapy, and penicillin allergy. Dr. Endo is a very physically active physician; he enjoys playing competitive soccer and working out at the gym as he believes doctors should be role models of cardiovascular fitness for patients.
Dr. Endo looks forward to providing excellent care to the AARC community.
Tanya Clark Perez PA-C
Certified Physician Assistant
A native of El Paso, Texas, joined the clinic in 2017. She attended the University of Texas Health Science Center at San Antonio and obtained a Master’s degree in Physician Assistant Studies. PA Perez completed her undergraduate degree in microbiology at the University of Texas at El Paso and later a post-baccalaureate program in Clinical Laboratory Sciences at UTHSCSA.
She has practiced internal medicine for seven years and has a special interest in preventative care and the role it plays in her patient’s health and wellness. PA Perez focuses on patient education to help patients achieve the quality of life that they desire. She is fluent in English and Spanish. Tanya is also an HIV Prevention Certified Provider.
Luis Tellez, PA-C
Physician Assistant
Luis Tellez, PA-C, is a dedicated healthcare provider committed to serving diverse communities. A native of Socorro, Texas, he joined AARC’s Health Equity Clinic in early 2025. He earned his Master’s degree in Physician Assistant Studies from the University of Texas Rio Grande Valley after completing his undergraduate degree in Biology at New Mexico State University.
With experience in Internal Medicine, Family Medicine, and Urgent Care, Luis brings a well-rounded approach to patient care. Fluent in both English and Spanish, he is passionate about providing accessible, high-quality healthcare to all.
Outside of medicine, Luis is an avid athlete who enjoys competitive sports, including flag football, softball, and golf. A longtime player in the Pride Softball League, he has twice qualified for the Gay Softball World Series. He has also been a member of the San Antonio Gay Flag Football League (SAGFFL) since 2015 and competed in the 2017 Gay Bowl in Boston, MA.
Luis looks forward to delivering compassionate, inclusive, and expert care to the AARC community.
Dr. Camille Spears
Dr. Spears attended medical school at UT Health San Antonio Long School of Medicine. She completed an MD and MPH during her time there, and focused her MPH study on HIV stigma’s impact on clinical outcomes. She has a particular dedication to LGBTQ health and with the support of AARC, founded a student run free clinic with a focus on care for gender and sexual minorities in 2017. She completed her residency in Internal Medicine at Rush in Chicago, and subsequently returned to San Antonio to complete her Infectious Disease fellowship at UT Health San Antonio.
Dr. Spears has special interests in social and economic determinants of health, gender affirming care, and reducing stigma in healthcare settings. A perfect afternoon for her is spent outdoors with her wife and two dogs, or singing karaoke with friends. Dr. Spears is so excited to join the AARC team and start providing excellent care to the AARC community.