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About Our Study Staff

Our Study Staff

• Over 40 Years' Experience

• Board Certified Doctors


• Over 40 Years' Experience

• Board Certified Doctors

• Telemedicine Virtual Visits

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Respiratory Medicine Research Institute of Michigan, P.L.C.
About Our Study Staff

Principal Investigator

Jeffrey Leflein, M.D. completed his pediatric internship and residency in pediatrics at the University of Medicine and Dentistry of New Jersey and Children’s Hospital, Newark, New Jersey. His fellowship in Pediatric Allergy and Immunology was completed at the National Jewish Center for Immunology and Respiratory Medicine, Denver, Colorado. He is board certified in pediatrics, allergy and immunology. He has been in a hospital based private practice and staff allergist at St. Joseph Mercy Hospital in Ann Arbor, Michigan. Dr. Leflein is also on staff at Chelsea, Beaumont, Botsford, Providence, and Oakwood Hospitals. He has been awarded Top Doc in Hour Magazine 2012, 2013, and 2014.

He is the principal investigator on numerous clinical trials at Respiratory Medicine Research Institute of Michigan since 1996, researching asthma, allergic rhinitis, and atopic dermatology. He continues to be actively involved in clinical research through his research center, Respiratory Medicine Research Institute of Michigan.

Study Coordinators

Diana Grigoryan, MA, CCRChas been a study coordinator at Respiratory Medicine Research Institute of Michigan since 2013 and has been certified since 2014.

Phone: 734-434-3007 ext 213

Email: dgrigoryan@annarborallergy.com


Jennifer Blanton, RN, BA, CRC has been a registered nurse since 2015 and been at Respiratory Medicine Research Institute of Michigan since 2016.

Phone: 734-528-0477

Email: jblanton@annarborallergy.com


Natalie Hauswirth, CRC has been a study coordinator at Respiratory Medicine Research Institute of Michigan since 2024.

Phone: 734-528-0477

Email: NatalieH@annarborallergy.com

Learn More About

Allergy & Immunology Associates of Michigan

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