Your health, taken personally.


As of August 18, 2017, Dr. Manelys Acosta has transitioned to a new position at the Veterans Administration Hospital.  All of us at Personal Med Clinic remain grateful for Dr. Acosta’s contributions to the care of our patients during her time with us.  Please join us in wishing her the best in her future endeavors.  Our other providers remain delighted to continue to serve your health care needs at Personal Med Clinic.

Our Attentive Providers


Joanne Hilliard, RN, FNP

Joanne Hilliard, RN, FNP-C

Family Nurse Practitioner - Certified


Joanne Hilliard, RN, FNP-C obtained her BSN in 1998, along with a BA in Psychology from Maryville University in St. Louis, Missouri.  While in attendance, Joanne was actively involved in the School of Health Professions, serving on the Dean Student Advisory Council and served as President of both the Student Nurses Association and Omicron Delta Kappa.  She has enjoyed learning and growing in her profession over the past 15 years, providing high quality care to patients in both acute and community settings.  Joanne obtained her Master of Science in Nursing as a Family Nurse Practitioner from UTHSCSA, graduating with high honors.  She is Board Certified and an active member of AANP/SANAP/TNP.  Joanne is married with three children, two grandchildren, two dogs and a cat.  In her free time, she enjoys  BBQ's with friends and family, day trips to explore and many outdoor activities.  She enjoys meeting your health care needs and supporting the mission, vision and values of Personal Med Clinic.

Maria D. Najera, MD
Internal Medicine - Board Certified

Dr. Najera grew up in the Rio Grande Valley and attended medical school at Universidad de Monterrey in Monterrey, Mexico. During her medical training, she performed an undergraduate internship at Methodist Healthcare System in San Antonio in 2006 and completed her medical degree in 2008. She returned home to the Valley for her residency in Internal Medicine at the University of Texas Health Science Center- RAHC program at Valley Baptist Hospital in Harlingen, graduating in 2015. She returns to San Antonio, the city that captivated her, accompanied by her husband and her daughter. In her free time she enjoys running, going to the movies, traveling and watching sports with her family and friends. She is fluent in English and Spanish. She provides attentive medical care to all adult members of our community.

Hector Edwin Tamayo, MD
Internal Medicine - Board Certified 

Dr. Tamayo received a childhood bilingual education through American schools in South America and is fluent in English and Spanish. He obtained his medical degree from the University of Texas Health Science Center in San Antonio in 1998. He specialized as a doctor for adults and was honored to serve as Chief Resident of the training program and then as a teaching doctor for many years at Audie L. Murphy VA Hospital, the University Hospital, and the University of Texas Health Science Center. He later received media attention for a contribution based housecall practice through which he served the San Antonio community for several years.  He has also served overseas on medical missions and locally in hurricane evacuation shelters and other community projects.  Dr. Tamayo is currently medical director of Personal Med Clinic where he supports our team of primary care providers to deliver enjoyable and meaningful care for our patients.  He is the proud father of two wonderful children, Ian and Jordan.


Our Supportive Staff

The bios below were prepared and posted by Dr. Tamayo.

Gladys Gonzalez, NCMA

Medical Assistant


Gladys is the moral backbone of Personal Med Clinic.  She has been an instrumental part of our growth since our early days and has helped to shape what we are today.  She came to Personal Med Clinic with extensive experience as a Nationally Certified Medical Assistant in a variety of small and large institutions.  At Personal Med Clinic, she found a safe and supported venue, where she could express her passionate desire to care for others in a capable manner with the flexibility to do so in a way that is meaningful to her and to those we serve.  She supports our providers in a tireless manner for less material rewards than she could receive elsewhere, because she believes in our providers, in our service, and in what she is able to give at this office.  Our patients regard her as one of the main reasons they continue committed to Personal Med Clinic.


Christian Espinoza

Medical Assistant


Personal Med Clinic made a baby.  Chrissy was born into the medical field at our office in 2014, where she performed her externship as a Medical Assistant.  Although we were not looking to hire someone at the time her externship ended, we could not help but keep her, because we were enamored with her and because we believe in her.  She continues to overcome significant odds to excel in school and in her medical career.  Although many patients initially are struck by her very youthful appearance, she quickly proves herself to be capable, humble, servient, and enterprising.  We are blessed to have her trust as a place where she continues to grow and serve, and we look forward to watching her path unfold before her.