Perelman School of Medicine at the University of Pennsylvania

Center for Sleep and Circadian Neurobiology

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Clinical Fellows

Jessica Oehlke, MD

Jessica Oehlke, MD
Adult Fellow


Stacey Elkhatib Smidt, MD

Stacey Elkhatib Smidt, MD
Pediatric Fellow


Jennifer So, MD

Jennifer So, MD
Adult Fellow


Robert Stowe, MD

Robert Stowe, MD
Pediatric Fellow


Jason Yu, MD

Jason Yu, MD
Adult Fellow


Ilia Kritikou, MD

Ilia Kritikou, MD
Adult Fellow



Post-Doctoral Fellows

Jennifer Goldschmied, PhD

Jennifer Goldschmied, PhD
Research Fellow


Junxin Li, PhD

Junxin Li, PhD
Nursing Research Fellow


Anjum Parkar, PhD

Anjum Parkar, PhD
Research Fellow


Ivan Vargas, PhD

Ivan Vargas, PhD
Research Fellow


Olivia J. Veatch, MS, PhD

Olivia J. Veatch, MS, PhD
Research Associate


Ariel Williamson, PhD

Ariel Williamson, PhD
Behavioral Sleep Medicine Fellow


Miranda Varrasse McPhillips, PhD, RN

Miranda Varrasse McPhillips, PhD, RN
Nursing Research Fellow


Yoon Hee Chang

Yoon Hee Chang
Research Fellow


Liyue Xu, MD

Liyue Xu, MD
Research Fellow


Shirley Zhang, PhD

Shirley Zhang, PhD
Research Fellow



Graduate Students

Sarah Ly

Sarah Ly
PhD Candidate, Neuroscience


Olga Tkachenko

Olga Tkachenko
PhD Candidate, Psychology