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MIS Fellow

Senior Fellow – Jessica Sisto, MD

Jessica Sisto will always call California home; however, she has lived all around the country and the world completing her education. Jessica received her undergraduate degree from Pitzer College, followed by her Master’s Degree at Drexel University. She completed her medical training at the University of Cincinnati in Ohio, during which she spent a year abroad in Central America working on a maternal health education project. This project sparked her interest in international health. She then returned to California to finish her OBGYN residency at the University of California Irvine. Dr. Sisto considers women’s health care her passion and has always been interested in underserved communities and women’s global health. She has worked in Nicaragua, Honduras, Ecuador, and Tanzania, and plans to continue to fight for all women’s access to healthcare around the world. 

Medical Education
Medical Degree from University of Cincinnati College of Medicine

University of California Irvine 


Junior Fellow – Nathaniel Klein, MD

Dr. Klein grew up in a small country town in Michigan before attending Michigan State University, where he double majored in human physiology and nutrition. He then continued his education at Rosalind Franklin University of Medicine and Science, where he received his Master of Science in Biomedical Sciences and a research certificate for clinical sciences.

Dr. Klein then went on to obtain his medical degree from the Chicago Medical School, completing his OB/GYN residency at St. Joseph Hospital in Chicago. While in residency, he served as the chief resident as well as the administrative chief.

During his residency, Dr. Klein helped develop a new GYN training curriculum with an emphasis on simulation training regarding robotic and laparoscopic surgical techniques while integrating the latest minimally invasive surgery research. He developed a passion for treating patients with chronic pelvic pain, especially related to endometriosis, as he found this patient population to be dramatically underserved and often times inadequately managed.

He strives to make his patients feel comfortable and well-cared for and believes that the best way to do that is to listen to patients’ concerns or worries so they can work together to find a personalized treatment plan. In addition to his fellowship, Dr. Klein is pursuing a Master of Business Administration at University of Nevada, Las Vegas Lee Business School.

When he is not in clinic, Dr. Klein enjoys doing all things outdoors and eating good food. He is licensed in Nevada, California and Washington.

Medical Education
Medical Degree from the Chicago Medical School

St. Joseph Hospital, Chicago


Junior Fellow – Alyssa Small Layne, MD

Dr. Small Layne was born and raised in Canada with deep Caribbean roots, which sparked her interest in diversity and healthcare disparities. She graduated with honors from University of Toronto with a Bachelor of Science degree in Neuroscience. She had varied interests that she satisfied with minors in both Caribbean studies and psychology.  Her interests in science and community wellbeing led her to pursue a career in medicine.

She graduated from medical school at Meharry Medical College and then trained to be a women’s health specialist with a residency in obstetrics & gynecology at the University of Illinois at Chicago. Her medical career has focused on urban and underserved populations with projects in Canada, USA, Barbados and Honduras.

While studying, Dr. Small Layne found time to mentor students from disadvantaged communities in science and math. In her spare time, she is an avid hobbyist who can be found exploring farmers’ markets for her latest culinary adventures, hiking, snowboarding and even making her own haircare products.

Medical Education
Medical Degree from Meharry Medical College

University of Illinois at Chicago


Graduated Fellows