MEET OUR STAFF

PATRICK H. WIN, MD, FAAAAI, FACAAI

President/Director

Background
Patrick H. Win, MD is the president and director of the AAIC and the founder and principal investigator for The Clinical Research Center of Southern Illinois, LLC. Raised in Lee’s Summit, Missouri, he completed his training in internal medicine and allergy and immunology at Barnes-Jewish Hospital / Washington University School of Medicine. He is board-certified in internal medicine and adult and pediatric allergy and clinical immunology. He offers his medical and scientific expertise in the field of allergy and immunology to help patients control their allergy and asthma symptoms and improve their quality of life. His goal is to provide patients with a comprehensive evaluation and therapy with a personal touch.

Training
Internal Medicine-Barnes-Jewish Hospital / Washington University School of Medicine
Allergy & Clinical Immunology-Barnes-Jewish Hospital / Washington University School of Medicine

Board Certification
National Board of Physicians and Surgeons – Internal Medicine and Allergy & Immunology
National Board of Clinical Medicine – Allergy & Immunology
American Board of Allergy & Immunology (Pediatric and Adult)

Professional Memberships
American Academy of Allergy, Asthma and Immunology
American College of Allergy, Asthma and Immunology
Asthma and Allergy Foundation of America – National Board of Directors
The American Association of Immunologists

GABY ARABIA

FNP-C

Background
Gaby Arabia Matamoros grew up in Saint Louis, MO and completed her undergraduate education at University of Missouri – St. Louis. After obtaining her RN, she became a staff nurse at Memorial Hospital in Belleville, IL in the ICU taking care of critically ill patients. She completed her nurse practitioner training at Chamberlin College of Nursing in Chicago, Illinois. She enjoys treating all ages in the field of allergy and immunology, but particularly enjoys taking care of children and the geriatric population. Having been born in El Salvador, she is bilingual in both English and Spanish. 

Training
University of Missouri – St. Louis
Chamberlin College of Nursing

Board Certification
American Association of Nurse Pratitioners

ERICA YOUNG

PA-C

Background
Erica Young, PA-C is an associate advanced practice provider and Physician Assistant to Dr. Win at AAIC. She is a native of St. Louis and a graduate of Southeast Missouri State University. She attended PA school at Chatham University in Pittsburgh, PA. After her medical training, she started working at Springfield Clinic, in Springfield, IL in 2012. Having received extensive allergy and immunology training in Springfield Clinic’s allergy division, she has extensive experience treating both pediatric and adult patients in the field of allergy and immunology.

Training
Southeast Missouri State University
Chatham University

Board Certification
NCCPA – National Commission on Certification of Physician Assistants
IAPA – Illinois Academy of Physician Assistants
AAPA – American Academy of Physician Assistants

Professional Memberships
American Academy of Allergy, Asthma and Immunology
American College of Allergy, Asthma and Immunology

ANNA HAGNAUER

DNP, FNP-C

Background

Training
Southern Illinois University Edwardsville

KELSEY USSELMANN

MSN, FNP-BC

Background
Kelsey Usselmann, MSN, FNP-BC is an associate advanced practice provider and nurse practitioner to Dr. Win at AAIC. She is a native to the St. Louis area and received her undergraduate degree at Lakeview College of Nursing and her graduate degree at Maryville University. Prior to her career at AAIC, she worked in podiatry and wound care in Los Angeles, CA. She also worked in the intensive care unit as a registered nurse. She enjoys treating all ages in the field of allergy and immunology.

Training
Lakeview College of Nursing

Maryville University