Charlotte Staff


At the Flexogenix® office in Charlotte we provide the highest quality of care with the latest technology and techniques. We integrate both conventional and innovative medicine to ensure you lasting pain relief. Our doctors are with you every step of the way to provide you with the absolute best care.

Call The Charlotte Clinic: 704-842-3323
Hours: Monday- Friday 8:00am- 6:00pm
Fax: 704-817-0835

Dr. James J. Ho, MD

Dr. James J. Ho, M.D. was born overseas in Taipei, Taiwan and grew up in Atlanta, GA. He has dual degrees including a Bachelor’s of Mechanical Engineering and Doctor of Medicine. Currently board certified in Internal Medicine, he has extensive experience in Emergency Medicine/Urgent Care and is also a state medical examiner.

Kristie Kerrigan, RRA, RPA

kristie-rra-rpaKristi Kerrigan was born in Point Pleasant, New Jersey and raised in middle Tennessee. Kristi moved to North Carolina from Mechanicsburg, Pennsylvania where she worked as a registered radiologist assistant (RRA). She obtained her bachelor and master’s degrees in radiologic sciences from Midwestern State University in Wichita Falls, Texas and is a graduate of the radiologist assistant program at Virginia Commonwealth University in Richmond, Virginia. Kristi has 18 years of experience in radiology with emphasis in interventional radiology and computed tomography. She is compassionate and dedicated to the well-being of her patients. In her spare time she creates cake masterpieces like her idol Buddy Valastro, in true cake boss fashion.

Derek Medeiros, RRA, RPA

derek-medeiros-rra-rpaBorn and raised in Massachusetts, Derek is a board Radiology Practitioner Assistant. He comes from Connecticut where he trained at many different facilities and attended Quinnipiac University. He strives to provide exceptional patient care and takes pride in seeing his patients improve. Derek has a passion for exercise, nutrition and his Boston sports teams.

Joseph Cheek, RRA, RPA

Joseph CheekJoseph is a native North Carolinian, raised in the beautiful foothills of Wilkes County. He attended college at Weber State University. Board certified as a Radiology Practitioner Assistant since 2003, Joseph returns home to North Carolina from the Atlanta area where he worked in a large Radiology practice. He brings 20+ years of radiological experience to Flexogenix. Joseph enjoys hunting, fishing and spending time with his wife and 2 daughters.

Kristin Pahl, RRA, RPA

Kristin PahlKristin is a Registered Radiologist Assistant (RRA) from Charleston, SC. She received her Bachelors of Health Sciences from the Medical University of South Carolina and her Masters of Science degree from UNC Chapel Hill. Kristin has previously worked in Las Vegas as an RRA, and has worked globally in Africa and Southeast Asia. In 2015 she implemented the radiology department of a children’s hospital in Laos. She was able to provide healthcare to those in need including providing 8 months of training to Laos radiographers to increase the accessibility to quality radiology practices and standards globally. She prides herself in providing quality and compassionate care, and hopes to continue her work globally sometime in the future.

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