Our Team

Executive Leadership

Dr. Erika Gonzalez

Chief Executive Officer & President

Dr. Erika Gonzalez is the CEO & President of STAAMP Allergy. She previously served as the Chief of the Allergy, Immunology & Rheumatology division at the Children’s Hospital of San Antonio and was an Associate Professor of Clinical Pediatrics at Baylor College of Medicine.


She is actively involved as a community leader including serving on the Board of Directors and as the 2020 and 2021 Immediate Past Chairwoman for the San Antonio Hispanic Chamber of Commerce and the Board of Directors for Central Catholic Highschool. She is an Advisor to the Dean of Science Engineering & Technology at St. Mary’s University and at the state and national level, she is on the Stock Epinephrine Committee with the Texas Department of State Health Services, and is Co-Chair for the Small Business for America’s Future.


Dr. Gonzalez founded the nonprofit, Con Corazon SA, addressing health inequities and emergency preparedness in San Antonio and the surrounding area. Dr. Gonzalez is a native of San Antonio, graduated Magna Cum Laude from St. Mary’s University, obtained her medical degree from the University of Texas Medical Branch at Galveston, and returned home after completing 10 years of Active Duty Service as a Medical Officer in the U. S. Air Force.


She was selected as a 2019 Presidential Leadership Scholar and was appointed to serve on the National Medal of Science Committee by President Joe Biden. Most recently, STAAMP was awarded San Antonio Business Journal’s 2022 Diversity and Inclusion Award for their work to promote diversity, equity and inclusion in the workplace.

Dr. Joel Reyes

Chief Executive Officer | STAAMP Research

Dr. Reyes is the CEO of STAAMP Research and is a board-certified pediatric intensivist serving the critically ill children of west Texas and southern New Mexico. Originally from the Philippines, he immigrated with his family and grew up in Stockton, California. He received a bachelor’s degree in music from New York University before earning his medical degree from the Kirksville College of Osteopathic Medicine. He completed his pediatric residency through the US Air Force and pediatric critical care fellowship at the University of Texas Health Science Center in San Antonio. Dr. Reyes served 12 years in the US Air Force, where he had the opportunity to transport critically ill children across the Pacific, helped found and teach a fundamentals of pediatric critical care course both stateside and in Japan, as well as deployed to Bagram, Afghanistan, treating US and NATO forces as well as local children caught in the crossfire of war. He separated from the military as a Lieutenant Colonel.


He continues to be active in physician advocacy and medical education through the Society of Critical Care Medicine and the Bexar County Medical Society. He has written and edited textbook chapters on pediatric trauma and pediatric airway management. He served as a Health Care Consultant for Texas Electric Transportation Resources Alliance (TxETRA) and was a frequent speaker to legislators and stakeholders on the health detriments of standard vehicle emissions and potential benefits of transitioning to electric vehicles. Dr. Reyes is also an avid supporter of the arts having served on the board of ARTS San Antonio and is currently also a saxophone instructor at the San Antonio Academy. 

Dr. John Dice

Chief Medical Officer

Dr. Dice is the Chief Medical Officer and attending physician at STAAMP and investigator for STAAMP Research.


Originally from upstate New York, Dr. Dice graduated magna cum laude from the University of Notre Dame. He then went on to attend medical school at the University of Virginia. He completed his residency in Internal Medicine and fellowship in Allergy & Immunology in the US Air Force and went on to serve 13 years active duty before separating as a Lieutenant Colonel.


Before his time at STAAMP, Dr. Dice served as Chief of Allergy & Immunology at Keesler AFB and Scott AFB, was the Director of Immunizations for Wilford Hall Medical Center, and is an author of two book chapters and lecturer on the topic of urticaria.

Dr. Carlos Villarreal

VP of Clinical Services and Biologic Research

Dr. Villarreal MD MSc is the VP of Clinical Services and Biologic Research at STAAMP. He attended University of Monterrey in Mexico where he graduated with a Medical Degree and attended the University College London in the United Kingdom where he graduated with honors from the Masters in Surgical and Interventional Sciences program. Dr. Villarreal leads our team of health care staff to ensure that patients receive the best care possible. He oversees all programs including the Biologics Department and our Immunotherapy Programs. 


When Carlos is not at STAAMP he enjoys camping and outdoor activities with his dog. He also enjoys rowing and traveling to new places.

Cari Alvarado

Executive Strategic Analyst

Ms. Alvarado is the Executive Strategic Analyst at STAAMP. She holds a Bachelor’s in Marketing from Troy University, conferred in 2020, and earned a Master’s in Business Management in 2023.


In her role, Cari is responsible for analyzing industry dynamics, harnessing competitive intelligence and delivering data-driven insights to support strategic decision making. She plays a pivotal role in aligning departmental goals with the organization's strategic vision while ensuring the seamless and effective execution of its' strategic initiatives. She actively participates in the development and execution of short-term and long -term strategic plans, monitors project budgets, and ensures that projects are completed on schedule and within defined scopes. 


When Cari is not at STAAMP, she enjoys more creative pursuits consisting of painting and At-Home DIY crafts all while being a full-time dog mom to two fur-babies.


Sandra Brown

Director of Finance and Contracts

Sandra Brown is the Senior Revenue Cycling Manager at STAAMP. Sandra and her team are responsible for ensuring timely billing, accurate coding, & effective reimbursement.


When Sandra is not working at STAAMP, she enjoys spending time with her family and exploring our state's beauty.

Isabel Alejandro

Staff & Facilities Manager

Mrs. Alejandro is the Staff & Facilities Mangaer at STAAMP. Isabel is known for assisting with administrative support to all clinic departments and providing customer service satisfaction. She was one of the Founding Employees of STAAMP and brings over 20 years of Medical Billing and Administrative Management experience; manages and oversees our Administrative, Billing and Referral Departments. 


In her spare time, she enjoys spending time with her husband, daughter and fur babies, exploring Texas State Parks and Emerald Coast campsites.

Our Team

Medical Staff

Grace Hughes

Family Nurse Practitioner

Ms. Hughes is a Nurse Practitioner at STAAMP. She attended North Park University in Chicago, IL and graduated with a Bachelor's of Science with a major in Nursing in 2010. She then attended the University of Texas Health Science Center at San Antonio and graduated with a Master's of Science in Nursing in 2015. NP Hughes works in collaboration with the physicians of STAAMP to provide compassionate, high-quality, evidence-based care to our patient's and their families. 



When she is not working with patients, she is likely spending time traveling or doing something fun outdoors with her husband and two daughters.

Chardonnay Phelan

Physician Assistant


Chardonnay "Charlie" Phelan is a Physician Assistant at STAAMP. She attended Southern Methodist University in Dallas Texas, and graduated with a Bachelor of Arts in Economics. She then went on to attend the University of Texas Health Science Center at San Antonio and graduated with a Masters of Physician Assistant Studies. PA Charlie works in collaboration with the physicians of STAAMP to provide compassionate, high-quality, evidence-based care to our patient's and their families. 


When Charlie is not at STAAMP, she can be found hiking local trails with her West Highland White Terrier, Finlay. 


Our Team

Research Staff

Dr. Lucia Salas (IMG)

Clinical Education and Research Coordinator

Dr. Salas is the Clinical Educator and Research Coordinator at STAAMP. She attended the University of Monterrey (UDEM) in Monterrey, Nuevo Leon, Mexico; and graduated with Summa Cum Laude. Dr. Salas contributes with clinic consultation under supervision and guidance of Dr. Gonzalez. She participates in lectures and clinical cases providing skillful patient education. Dr. Salas is also responsible for recruiting patients for research trials.


When Lucia is not at STAAMP, she is on the phone or in a restaurant talking with friends and family.

Dr. Aline Leduc (IMG)

Clinical Education & Research Coordinator

Dr. Leduc is a Clinical Education and Research Coordinator at STAAMP. After obtaining her Medical Degree in Mexico,

she attended the Instituto Nacional de Salud Pública for her Master's Degree in Public Health, where she graduated with

honors. Aline is responsible for working collaboratively with members of the health care team, primarily assisting Physicians, our Research team, and the Medical Assistants while delivering elite quality customer service to patients. She accompanies the CCM patients in their quest for health empowerment so that they can adequately manage their chronic diseases from the perspective of healthy aging.


When Aline is not at STAAMP, she likes traveling and going to the park with her husband and their two golden retrievers.

Dr. Ivette Lopez (IMG)

Clinical Education & Research Coordinator

 Dr. Lopez is a Clinical Education and Research Coordinator at STAAMP. She obtained her medical degree in Mexico and has over ten years of international experience in patient care in rural and urban communities. Ivette uses her healthcare experience, talents, and problem-solving skills to create comprehensive care plans for the CCM program. She works with the healthcare team to deliver quality care to our patients and recruits patients for our clinical trials. She was previously involved in the quality improvement of the immunotherapy team at STAAMP.


When Ivette is not at STAAMP, she enjoys spending time with her husband and their two schnauzer dogs. Dr. Lopez also has a passion for singing, dancing and cooking.

Dr. Daniela Ramirez (IMG)

Immunotherapy Coordinator

Dr. Daniela Ramirez is the IT Coordinator at STAAMP. She attended Universidad de Monterrey in Monterrey, Nuevo Leon, Mexico and graduated with her Doctor in Medicine Degree. Daniela is responsible for the preparation, distribution and oversight of the Immunotherapy clinic.


When Daniela is not an IT Coordinator at STAAMP, she is at relaxing cafes or participating in outdoor activities with friends and family.


Dr. Dario Rocha (IMG)

Clinical Research Coordinator

Dr. Dario Rocha is a Clinical Research Coordinator at STAAMP. He attended the University of Monterrey, School of Medicine in Monterrey, Mexico, where he earned his Doctor of Medicine degree. Additionally, he completed a Clinical Research Fellowship at Harvard Medical School and Massachusetts General Hospital in Boston, MA. As a Clinical Research Coordinator, Dr. Rocha is responsible for coordinating and managing clinical research studies. His responsibilities include overseeing project timelines, coordinating study activities, ensuring regulatory compliance, and managing data collection. 


During his free time from research at STAAMP, he enjoys taking care of his plants, savoring an espresso, and going cycling.


Dr. Estefania Ramirez Hinojosa (IMG)

Clinical Research Coordinator

Dr. Estefania Ramirez Hinojosa is a Clinical Research Coordinators at STAAMP. She attended La Facultad de Medicina de la Universidad Autónoma de Nuevo León in Monterrey, Mexico and graduated with her Medical Degree. Dr. Ramirez is responsible for coordinating and managing clinical research studies. Her responsibilities include overseeing project timelines, coordinating study activities, ensuring regulatory compliance, and managing data collection. 


When Estefania is not at STAAMP, her and her rescue dog "Botas" like to go hiking. She also enjoys painting, dancing and singing. Getting together with friends or watching a good movie. 



Dr. Daniela Alverdi (IMG)

Clinical Research Coordinator

Dr. Daniela Alverdi is the Clinical Research Coordinator at STAAMP. She attended La Universidad Autónoma de Guadalajara and graduated with her Medical Degree. Dr. Alverdi is responsible for coordinating and managing clinical research studies. Her responsibilities include overseeing project timelines, coordinating study activities, ensuring regulatory compliance, and data management.


When Daniela is not at STAAMP, enjoys reading and spending time with her cat.


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