
Allergy & Asthma Consultants, Ltd.
Allergy Specialists
Physicians & Physician Assistant
Our medical team includes three allergists /
immunologists and one physician assistant. Allergists / immunologists are specialized physicians trained to
diagnose, treat, and manage asthma and allergy-related conditions.
Our Medical Team:
Mark E. Kaplan, M.D.
Joel S. Klein, M.D.
Stacie A. McMurtry, M.D. Sandra Denman, P.A.-C.

Mark E. Kaplan, M.D.
Allergist / Immunologist
Dr. Mark E. Kaplan joined Allergy and Asthma
Consultants, Ltd. in 1993 and has expanded the practice to include offices in Gurnee and Libertyville,
Illinois. Dr. Kaplan graduated from Grinnell College in Iowa and subsequently received his M.D. from the
University of Health Sciences / the Chicago Medical School. He completed a residency in internal medicine at
Northwestern University followed by a fellowship in pediatric and adult allergy / immunology at Northwestern
University in Chicago. Dr. Kaplan is board-certified in internal medicine and allergy / immunology and
re-certified in allergy / immunology in 2003.
Dr. Kaplan is a fellow of the American Academy of
Allergy, Asthma and Immunology and the American College of Allergy, Asthma and Immunology. He is a clinical
instructor of Medicine at Northwestern University and supervises medical students from Rosalind Franklin University
of Medicine and Science. Dr. Kaplan is a member of the medical staffs of Lake Forest Hospital, Evanston
Northwestern Healthcare, Condell Medical Center and Victory Memorial Hospital. Chicago Magazine has
named him one of Chicago's "Top 10 Doctors" on multiple occasions.

Joel S. Klein,
M.D. Allergist / Immunologist
Dr. Joel S. Klein joined Allergy and Asthma Consultants,
Ltd. in July 2008. A native of Chicago, he received his B.A. from
Northwestern University, M.S. from University of Illinois-Urbana and M.D. from University of Health Sciences/The
Chicago Medical School. His residency training in internal medicine
was at Rush-Presbyterian-St. Luke’s Medical Center. Dr. Klein’s
training in adult and pediatric allergy/immunology was a 3-year fellowship at Mayo Clinic during
1992-1995. Since 1995, he has been in clinical practice in the
north suburban Chicago area.
Dr. Klein is a past president of the Illinois Society of
Allergy, Asthma and Immunology and is currently the society’s Historian. He has an academic appointment as Assistant Clinical Professor of Medicine at
Rush Medical College and regularly presents lectures on allergy/immunology to medical students, interns and
residents at Rush North Shore Hospital. Dr. Klein has authored and
co-authored a number of publications in the specialty of allergic diseases. He has been recognized by Castle Connelly as a top allergist in the Chicago
area.
Dr. Klein is board-certified and re-certified in
Allergy/Immunology and Internal Medicine. He is a Fellow of the
American Academy of Allergy, Asthma and Immunology and of the American College of Allergy, Asthma and
Immunology. Dr. Klein is on the medical staffs of Highland Park
Hospital, Evanston Hospital, Glenbrook Hospital, Lake Forest Hospital, Rush North Shore Hospital and Lutheran
General Hospital.

Stacie A. McMurtry,
M.D. Allergist / Immunologist
Dr. Stacie McMurtry received her undergraduate degree
in biology from Stanford University. She continued her education at the University of Michigan where she
received her doctorate in medicine. She completed her residency in pediatrics at the Children's Hospital of
Philadelphia / University of Pennsylvania. Dr. McMurtry went on to complete her pediatric and adult allergy /
immunology fellowship at Children's Memorial Hospital / Northwestern University in Chicago. Dr. McMurtry is
board-certified in pediatrics and allergy / immunology and has attained fellowship status at the American Academy
of Pediatrics and the American Academy of Allergy, Asthma and Immunology.
Dr. McMurtry is on staff at Children's Memorial
Hospital, Evanston Northwestern Healthcare, Lake Forest Hospital and Condell Medical Center. Dr. McMurtry
joined Allergy and Asthma Consultants, Ltd. in 2002 and has a special interest in pediatric asthma and
allergic diseases.

Sandra Denman, P.A.-C.
Physician Assistant - Certified
Sandra Denman, PA-C, is a board-certified physician
assistant with a special interest in pediatric and adult asthma and allergic rhinitis. She joined Allergy and
Asthma Consultants, Ltd. in 2002.
Ms. Denman received her master of physician assistant
studies degree from Midwestern University in Downers Grove, Illinois, where she graduated magna cum laude.
Prior to that, Ms. Denman graduated magna cum laude from the University of Wisconsin-Parkside, where she received a
bachelor of science degree in biology.
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