Click here to meet Dr. Kerwin!

Dr. Khera received her MD degree from Wayne State University in Detroit, MI and completed her neurology residency at the University of Texas Southwestern Medical Center in Dallas (UTSW).  She then obtained further training in Behavioral Neurology & Neuropsychiatry.  She is now assistant professor at UTSW.  She sees patients at the UTSW memory clinic and is also interested in clinical research, especially in the topic of caregiver burden. 

Her mother was diagnosed with frontotemporal dementia in 2007 so she has seen the devastation that a neurodegenerative condition can wreak on a family.  She has joined Kerwin Medical Center in order to expand her reach in clinical research and, not only find a cure for Alzheimer’s Disease and Related Dementias (ADRD), but also to find more resources for care partners of dementia patients. 

Outside of work, she likes to spend time with her fiancé and fur baby (dog), Mocha.  She loves trying new restaurants, socializing, making new friends, and listening to music. 

Dr. Ríos-Vázquez is a clinical neuropsychologist with specialized postdoctoral training in cross-cultural neuropsychology, with an emphasis in neurodegenerative disorders. She is bilingual in English and Spanish, and licensed in Texas and Puerto Rico. 

Dr. Ríos-Vázquez was born and raised in Puerto Rico. She completed a doctoral degree in Clinical Psychology at the University of Puerto Rico, Rio Piedras and a Clinical Psychology Internship at the New York City Health and Hospitals Corporation, Gotham Health – Roberto Clemente Institute for Family and Community Care. She then relocated to Dallas, Texas to pursue postdoctoral residency training in neuropsychology at both the Institute for Clinical Neurosciences and NeuroHispanos. She is a member of several professional organizations including the National Academy of Neuropsychology and the Hispanic Neuropsychological Society. Dr. Ríos-Vázquez has presented on several topics including women’s health and cultural and methodological considerations in the neuropsychological assessment of minorities. In her clinical practice, she works with older adults experiencing cognitive and emotional changes associated with neurological disease or injury. She is an experienced clinical rater and has worked in several phase 3 clinical trials for Alzheimer’s disease therapeutics. She is passionate about increasing the presence and participation of minorities in clinical research. 

In her free time, she enjoys outdoor activities, exercising, spending time with family and friends, and traveling. 

Dr. Jim Harris earned a doctorate in clinical psychology from Baylor University, with internship at the University of Texas Southwestern Medical School.  He conducts neuropsychological assessments, and has done dementia research seeking to promote effective treatment for Alzheimer’s disease since 2013.  He is published in peer-reviewed journals.  He provided neuropsychological services for Presbyterian Hospital of Dallas, and founded the Memory Clinic of Texas specializing in dementia assessment.  He became a member of the National Academy of Neuropsychology in 2003.  He has enjoyed serving as clinical faculty for the UTSW Medical School and Southern Methodist University directing doctoral students in their clinical work. 

Tiffini Hansen is a graduate from the University of California Polytechnic in San Luis Obispo, California where she earned a degree in psychology. Tiffini has been a psychometrist for over 10 years, with a focus on geriatrics. Tiffini has been married for 23 years and has two teenage boys who are heavily involved in baseball, so she spends most of her time at baseball fields on the weekend. Being part of a research team with so much heart and soul has been a blessing to her.   

Maddie joined KMC in 2023 as Practice Manager, and has transitioned into a Cognitive Rater role. She has a Bachelor of Arts in Psychology from Texas A&M and a Master of Public Health specializing in Health Policy and Management from Johns Hopkins. 

Prior to joining KMC Maddie worked in process improvement and operations in a wide variety of settings, including patient access, a fully remote healthcare startup, and a robotic bariatric surgery clinic. She is excited to combine her passion for efficient and equitable healthcare with her passion for neuroscience and psychology in her role at KMC.

Outside of the office, Maddie can usually be found crocheting, trying new restaurants, and finding any excuse to take a nap.

Jordan Caldwell joined Kerwin Medical Center in August 2021 as a Certified Clinical Research Coordinator. She came to the role with six years of prior clinical research experience investigating new treatments for a multitude of psychological and neurological conditions. She graduated from the University of Texas at Austin with degrees in both Psychology and Biology.

Jordan has taken her desire to understand how the brain works to help the team at Kerwin Medical Center find new treatments. Her dedication and hard work show in the care and compassion she gives her patients. Through research and community education she believes that Kerwin Medical Center can make a difference in the fight against Alzheimer’s.

Jordan is a native Texan from the panhandle. When not at work she enjoys spending time with her husband, traveling, reading, and spoiling her cat.

Julias is a Registered Nurse and has been providing care in the nursing profession for over 20 years. She began her career in the field starting as a certified nurse aide and quickly advanced her career into the nursing profession. She obtained her Licensed Vocational Nursing certificate from Amarillo College in 2002 and later return back in 2019 and 2020 where she obtained her Associates and Bachelors of Science in Nursing from Collin College, School of Nursing. Her areas of specialty have included care in the hospital setting, in the medical surgical care unit, as well as urgent care setting. In addition, she has provided care as a program director for home health services. 

Her nursing journey has led her here to Kerwin Medical Center. At Kerwin Medical Center, Julias serves as the Clinical Research Nurse where she helps to oversee patient care, provides patient education and assists with participant recruitment and enrollment for clinical trials. Her passion and focus have always been centered around the patient and their families. She is committed to deepening the connections with her patients/families and to continue to be a valuable resource to them as they travel through their dementia journey.  

Julias is married with four kids: 2 sons and 2 daughters. She is also a mother to her animals, a yellow-headed Amazon parrot and bearded dragon. Outside of work, she enjoys spending time with family and loves her arts and crafts.

Karen is a happy soul with a big personality. She is passionate about patient care and is always eager to work. She has several years of patient care experience as a medical office assistant, phlebotomist, specimen processor, and clinical researcher.  She earned her associate in science degree from Dallas College in 2020 and her Bachelors of Science in Public Health from the University of Texas at Arlington in 2023. 

Karen is a Latina woman who is bilingual in both English and Spanish and wants to share her research knowledge with minorities and the Spanish community. She has worked in both inpatient and outpatient care settings, providing patients with the best care out there.

Karen is happily married with a son and the sweetest dog. In her spare time, she enjoys spending time with her family, watching Korean dramas and stand-up comedy, exploring, and trying delicious new foods.

Megha joined Kerwin Medical Center in February 2022 as an intern through her Master’s program in Applied Cognition and Neuroscience at the University of Texas-Dallas. Upon her graduation from her Master’s program in 2022, she joined full-time as a Clinical Research Coordinator. She also graduated in 2021 with a B.S. in Neuroscience from the University of Texas-Austin.

Megha has always had a passion and interest in neuroscience. She has wanted to be a part of finding a cure since her grandfather passed away from Alzheimer’s Disease when she was young. She feels very strongly about helping patients with dementia, especially underrepresented populations. She wants to use her knowledge in neuroscience to help patients understand the science behind Alzheimer’s. 

Megha grew up in New Jersey and San Antonio, Texas. In her free time, she loves to attend yoga classes, travel, and be outdoors.