Our Professionals

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San Antonio-born, Dr. Diaz followed in his father's footsteps, Jose A. Diaz, M.D., Family Practitioner, who had a successful medical practice on the south side of San Antonio for 30 years.

Dr. Diaz is board certified with the American Board of Internal Medicine and American Board of Allergy and Immunology. Dr. Diaz graduated from St. Mary's University in San Antonio with high honors and a B. S. degree...

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Dr. Kniker joined Allergy, Asthma and Immunology Associates of South Texas in September, 1998 after a distinguished career in academic medicine at the University of Texas Health Science Center at San Antonio. While there, as Professor of Pediatrics and Internal Medicine, he directed the Division of Allergy and Immunology, which carried out teaching of medical students and physicians nationally, care of patients and considerable research.

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John P. Dice, M.D. is board certified by the American Boards of Allergy & Immunology and Internal Medicine. Dr. Dice attended the University of Notre Dame where he graduated magna cum laude with a degree in Economics and Pre-Medicine. He subsequently attended the University of Virginia School of Medicine where he received his medical degree. He next entered military service with the Air Force and completed his residency in Internal Medicine at Wright-Patterson AFB...

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Ms. Garcia joined Allergy, Asthma and Immunology Associates of South Texas in December, 2002. She is certified by the National Commission on Certification of Physician Assistants.

Ms. Garcia obtained her first bachelor's degree in Biology from the University of Texas at Arlington where she was inducted to Alpha Chi Honor Society. She received her second bachelor's degree in Physician Assistant Studies from the University of Texas.

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Erika Gonzalez-Reyes, M.D. is board certified with the American Board of Pediatrics and American Board of Allergy and Immunology.

A native of San Antonio, Dr. Gonzalez attended Health Careers High School and went on to graduate magna cum laude from St. Mary's University San Antonio with a degree in Biology. Dr. Gonzalez next attended the University of Texas Medical Branch at Galveston on a U.S. Air Force scholarship and received her medical degree.

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Our Staff

thumb01 Alicia Reyes
Insurance Referral Specialist
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thumb02 Amanda Bedell
IT Specialist

thumb03 Anna Guzman
Billing Specialist
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thumb04 Jo Ann Johnson
Xolair Specialist
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Korina Nobel
Medical Assistant

thumb06 Sean McRee
Administrator Assistant

Bertha Bertha Cortez
Receptionist

thumb08 Rosemary Esquivel
Receptionist

thumb09 Sylvia Garcia
Medical Assistant

thumb10 Brandon Kreager
Director of Public Relations
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Diana Ballesteros
Medical Assistant

thumb12 Cindy Huxley
Transcriptionist

thumb13 Daisy Cherian
MA Supervisor

thumb14 Eric Hartgraves
Billing Specialist
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thumb15 Isabel Cortinas
MA Supervisor

thumb16 Isabel Escobedo
Reception Supervisor

thumb17 Maggie Raper
Medical Assistant

cozette_small Cozette Blandford
Practice Administrator
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