Course Overview


Stephanie Adams, OD, PhD

Denise Alexopoulos, OD, FAAO

Christine Allison, OD, FAAO, FCOVD

John Baker, OD, MSEd

Barclay W. Bakkum, DC, PhD

Tahira Bedgood, BS

Raman Bhakhri, OD

Chelsea Bradley, OD

Brittney Brady, OD

Elyse L. Chaglasian, OD, FAAO

Michael Chaglasian, OD, FAAO

Robert Donati, PhD

Katie Foreman, OD, FAAO

Kelly A. Frantz, OD, FAAO, FCOVD

Stephanie Fromstein, OD, FAAO

Helen M. Gabriel, OD, FAAO

Geoffrey Goodfellow, OD, FAAO

Greta Gregg, OD

Jennifer S. Harthan, OD, FAAO

Kathryn Hohs, OD

Erica Ittner, OD

Valerie Kattouf, OD

Darren Koenig, OD, PhD

Katherine Lynch, OD, FAAO

Michelle K. Man, OD, FAAO

Tracy Matchinski, OD, FAAO

Mallory McLaughlin, OD

Heather McLeod, OD, FAAO

Janice McMahon, OD, FAAO

Leonard Messner, OD, FAAO

Stephanie Messner, OD, FAAO

Christina Morettin, OD, FAAO

Tricia L. Newman, OD, FAAO

Dominick L. Opitz, OD, FAAO

Yi Pang, MD, OD, PhD, FAAO

Jaymeni Patel, OD, FAAO

Andria Pihos, OD, FAAO

Danielle Piser, OD

Harneet Randhawa, OD, FAAO

Daniel K. Roberts, OD, PhD

Anne Rozwat, OD, FAAO

Patricia Salazar, OD

Navjit K. Sanghera, OD, FAAO

Darrell G. Schlange, OD, DOS, FAAO

Lindsay Sicks, OD, FAAO

Ashley Speilburg, OD, FAAO

Wendy J. Stone, OD, FAAO

Bruce Teitelbaum, OD, FAAO

Christine Weber, MLS

Janis E. Winters, OD, FAAO

Elizabeth Wyles, OD, FAAO

Xiaohua Zhuang, PhD

Rebecca K. Zoltoski, PhD

NBEO Pass Rate

Academic Calendar


Greta Gregg, OD

Clinical Instructor of Optometry




Why ICO?

After receiving an excellent education and clinical experience as a student and resident at ICO, I wanted to be a part of the ICO family and help in educating the next generation of incredible clinicians. ICO provided me with the tools and skills to be a successful optometrist, and I want to provide those tools and skills to our future doctors.


Dr. Gregg completed her undergraduate education at the University of Illinois at Chicago, earning a bachelor’s degree in biology and minor in chemistry. She went to earn her Doctor of Optometry degree from the Illinois College of Optometry in 2019 and went to complete a residency in primary care and ocular disease at ICO in 2020. Dr. Gregg spends most of her time in clinical education at ICO.

Special Interests

Primary Care, Ocular Disease


2020 Illinois College of Optometry Primary Care and Ocular Disease Residency

2019 Illinois College of Optometry, Doctor of Optometry

2014 University of Illinois at Chicago, Bachelor of Arts


2020- present Illinois College of Optometry

Awards & Honors

2019 Dr. George L. Demetros Memorial Scholarship

2019 Richard J. O’Brien II Memorial Award

2019 Clinical Excellence Award

2019 Gold Key International Optometric Honor Society

2019 Beta Sigma Kappa Optometric Honors Fraternity

2019 Tomb and Key Honors Society

Professional Organizations

American Optometric Association

American Academy of Optometry

Illinois Optometric Association

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