Our providers are supported by an extensive team of professionals and specialists dedicated to providing individualized care to our patients and excellence in Lyme treatment. We’re here to help.


Treatment Providers


Joseph G. Jemsek, MD, FACP, AAHIVS

Board Certified Internal Medicine, Infectious Disease
HIV/AIDS, Lyme Borreliosis/Tick-Borne Infection Specialist

Dr. Joseph G. Jemsek, known to many of his patients as “Dr J.,” is the namesake and founder of the Jemsek® Specialty Clinic. Located at the heart of Washington, DC, Jemsek® Specialty Clinic provides top-quality care for those affected by Lyme and other tick-borne illnesses.

Read More About Dr. Jemsek

In 1983, early in his career and while at the Nalle Clinic in Charlotte, NC, Dr. Jemsek diagnosed the first case in the state of what was eventually to be recognized as HIV/AIDS. He dedicated the next two decades of his career to the care of these severely ill and marginalized patients.

In 2000, he founded the Jemsek® Clinic to provide primary care to the HIV/AIDS community. This practice was recognized as the largest provider of HIV/AIDS care between New York and Miami. Dr. Jemsek also has a strong affinity for philanthropic work, and in 2003 created the Jemsek® CHARM project, which was a 501c(3) organization devoted to the care of the HIV/AIDS community. In 2009, he was awarded the North Carolina Certificate of Appreciation for his work. This is the highest civilian award offered in the state, bestowed solely on a merit basis.

In 2001, quite by chance, he gradually began to see patients at the Jemsek® Clinic suffering from what would later be termed Lyme Borreliosis Complex. Dr. Jemsek became increasingly intrigued by LBC’s complexities which led to his full dedication towards understanding and treating these often-marginalized patients. This dedication led to the eventual establishment of the Jemsek® Specialty Clinic in Washington, DC, which proudly serves patients from every U.S. state and over a dozen countries.

As an infectious disease specialist, Dr. Jemsek has the distinction of being a key player in the twin epidemics of modern times, HIV/AIDS and Lyme Borreliosis Complex.


Kim Fogarty, PA-C

Kim Fogarty, certified Physician Assistant, joined JSC® in March 2010 shortly after the clinic opened its doors in DC. She studied health sciences and biology at James Madison University in Virginia, after which she received her master’s degree in Physician Assistant Studies from DeSales University in Center Valley, PA.

Read More About Kim Fogarty

She began her PA career in a hospital emergency department for several years before moving into a primary care setting. Kim has worked as a student athletic trainer and as an emergency medical technician.

She enjoys an active lifestyle with fly fishing, running, sports, and is a devoted Washington Redskins fan.


Rachel Markey, PA-C

Rachel Markey, certified Physician Assistant, joined JSC® in 2013. Previously, Rachel practiced for several years in a primary care setting. She received her Master’s in Physician Assistant Studies from Western University of Health Sciences in California and completed her undergraduate studies at St. Mary’s College of Maryland.

Read More About Rachel Markey

In her spare time, Rachel participates in a wide range of activities including Pilates, soccer, and running, as well as cooking and spending time with family and friends.


Anne Walch, MS, PA-C

Anne Walch, certified Physician Assistant, has been working with Dr. Jemsek since 2009. Anne studied at Duke University in Durham, NC, where she received both her undergraduate Bachelor of Science in Psychology and her Master of Health Science degrees.  

Read More About Anne Walch

She has an extensive background in both family and integrative medicine and spent several years in Nepal working with rural and underserved populations.

Anne enjoys music, reading, traveling, and spending time in nature.


Candace Willett, MPH, MSN, PPCNP-BC

Candace Willett, certified Pediatric Nurse Practitioner, focuses on JSC’s® youngest patients. She joined JSC® in 2017 and sees patients from infancy to early adulthood.

Read More About Candace Willett

Candace attended Mount Holyoke College in Massachusetts for her undergraduate studies, going on to earn her Master of Public Health at George Washington University in Washington, DC. She then went on to obtain her master’s in nursing science from Yale School of Nursing in Connecticut.

Prior to joining JSC®, she worked within primary care and dermatology settings and has been interested in tick-borne illness for many years.