Dr. Joshua Richter
Dr. Joshua Richter was born in Vernon Hills, Illinois, and joined the Army in 2001 at the age of 19 as an enlisted infantryman. He was assigned to the 1st Ranger Battalion in Savannah, Georgia, and completed three combat tours. He later moved to Fort Bragg, North Carolina, where he was assigned to a Special Missions Unit and completed an additional eight combat tours.
While on active duty, Dr. Richter earned his bachelor’s degree from Norwich University and was selected as an inaugural member of the Enlisted to Medical Degree Preparatory Program. He subsequently completed medical school at the Uniformed Services University of the Health Sciences and trained as a Physical Medicine and Rehabilitation (PM&R) physician at the Walter Reed National Military Medical Center.
Dr. Richter has advanced training and certifications in repetitive Transcranial Magnetic Stimulation (rTMS) and Magnetic e-Resonance Therapy (MeRT), cutting-edge technologies used to treat conditions such as depression, PTSD, and traumatic brain injury. He has also completed advanced training through The Institute for Functional Medicine, equipping him to address root causes of illness and optimize overall health through a personalized, systems-based approach.
Dr. Richter enjoys caring for a broad range of patients and has had the privilege of aiding in the treatment of brain-injured patients at the National Intrepid Center of Excellence. His clinical interests include neuromusculoskeletal medicine, functional medicine, cognitive optimization, and holistic approaches to patient care.
Dr. Richter lives in Leesburg, Virginia, with his wife and four children.
Dr. Maria Juanpere
Dr. Maria E. Juanpere is a Board-Certified Pediatrician and Fellow of the American Academy of Pediatrics, bringing over 30 years of dedicated experience in pediatric care. Her distinguished career reflects her commitment to improving the lives of children and families through comprehensive medical care, early diagnosis, and community education.
Dr. Juanpere specializes in the early diagnosis and management of autism spectrum disorder (ASD) using the ADOS-2, a gold-standard assessment tool. She is passionate about identifying children with autism at the earliest stages, empowering families with the knowledge and resources they need to maximize their child’s potential. Her approach is both compassionate and thorough, ensuring that families receive tailored guidance and access to interventions that support their child’s development.
Beyond her clinical practice, Dr. Juanpere has made significant contributions to public health, particularly in child safety and advocacy. She served on the Northern Regional Child Fatality Review Board, where she worked to improve child safety measures and reduce preventable fatalities. Her efforts in public education on safe sleep practices and child abuse prevention have been widely recognized, showcasing her dedication to holistic child welfare.
Dr. Juanpere earned her medical degree from Boston University School of Medicine and completed her residency at Boston City Hospital. She also holds a bachelor’s degree in medical technology and a master’s degree in medical laboratory management from Catholic University. Before pursuing her medical degree, she worked as a medical technologist at leading institutions, including Harvard University Health Services, Children’s National Medical Center, and Arlington Hospital Center.
Dr. Juanpere’s expertise extends to newborn care, child development, and adolescent health. Fluent in both English and Spanish, she provides accessible, inclusive care to families from diverse backgrounds. Outside the clinic, she nurtures her creative side with photography, holding a certificate in digital photography from the New York Institute of Photography.
Dr. Juanpere is now accepting patients for autism assessments and diagnosis using the ADOS-2 and other diagostic modalities.
Autumn O'Hara
OTD, MS, OTR/L, HPCS
Dr. O’Hara is an experienced occupational therapist with a Doctorate in Occupational Therapy from The George Washington University. Specializing in hippotherapy, Dr. O’Hara integrates Dynamic Body Balancing, Myofascial Release and Bodywork techniques to provide holistic care, helping clients achieve physical and emotional well-being.
As a Board Certified Hippotherapy Clinical Specialist (HPCS) and Dr. O’Hara uses equine-assisted therapy to address motor, sensory, and emotional challenges. Dr. O’Hara is also involved in developing the SPIN program at the Brain Treatment Center, collaborating with professionals to create tailored therapies for neurological conditions.
Currently practicing at Ride-On Ranch Equine Assisted Therapies, Dr. O’Hara has been serving clients through hippotherapy since 2012. With a client-centered, evidence-based approach,she empowers individuals to reach their full potential.
In addition to clinical work, Dr. O’Hara has taught and mentored Master's level students at Shenandoah University, contributing to the education of future occupational therapists. Her work reflects a deep commitment to advancing the field and honoring God in all they do.
Outside of therapy, Dr. O’Hara enjoys homeschooling her three children, playing racquetball, and doing outdoor activities with her husband and family. Her holistic approach integrates mind, body, and spirit—always focused on serving others for God's glory.
Nicole Watson
CRNA, PMHNP
Nicole is a dedicated provider with dual credentials as a Certified Registered Nurse Anesthetist (CRNA) and Psychiatric Mental Health Nurse Practitioner (PMHNP). With a passion for innovative mental health care, Nicole founded Revival Wellness and Ketamine to provide compassionate, evidence-based treatments for individuals struggling with depression, anxiety, PTSD, and chronic pain.
Blending her extensive anesthesia and psychiatric care expertise, Nicole specializes in administering safe and effective ketamine infusion therapy. Her patient-centered approach emphasizes holistic wellness, empowering individuals to reclaim their lives and rediscover joy.
Nicole is committed to creating a supportive, healing environment where each patient receives personalized care and guidance on their journey to mental wellness. In her free time, Nicole enjoys traveling, hiking, gardening, and quality time with her husband, three little boys, dogs, and friends.
Bryan White
Bryan is the Operations Director at Brain Treatment Center Ashburn, where he oversees day-to-day operations and ensures the highest quality of care for patients seeking functional health and MeRT therapy.
With a Bachelor of Science in Criminal Justice, Bryan brings a unique background that includes a decade of service as a U.S. Army officer and extensive experience in leadership and operations management. As a certified neurotechnician in Wave Neuro MeRT therapy, he is dedicated to advancing brain health solutions for individuals facing neurological challenges.
Beyond his work at the clinic, Bryan is an instructor and an advocate for veterans’ wellness through his involvement with the 11/11 Veteran Project, helping connect former service members, and their families, with innovative treatment options. His commitment to both operational excellence and patient care ensures that every individual receives the personalized attention they deserve on their path to better health.
Payton Gingras
Payton Gingras holds a Bachelor of Science in Psychology from Christopher Newport University and is a certified Neurotechnician specializing in MeRT therapy. She has received training in QRI cold laser therapy and is currently working toward certification as an Integrative Functional Nutritionist, which she plans to integrate into the clinic later this year.
In her new role as a Partnership & Program Development Coordinator, Payton helps expand and support clinic programs while building meaningful relationships within the medical and local community to enhance patient care.
With a background working with young children, Payton has a special passion for supporting children on the autism spectrum. Her commitment to neuromodulation and functional health drives her dedication to personalized, integrative care that supports brain and nervous system health for all ages.
Maria Convery
BSN
Maria graduated from Marymount University in 2012 with a Bachelor of Science in Nursing. She spent ten years at Virginia Hospital Center in Arlington, specializing in Labor and Delivery. Maria has a strong interest in functional medicine and is passionate about supporting patients in achieving their full potential by working with the body’s natural healing processes.
Tatiana Reyes
Tatiana Reyes is a licensed Occupational Therapy Assistant in Virginia whose journey into OT began in the public school system, where she saw firsthand how foundational skills can shape a child’s success. That early insight sparked a passion for helping individuals of all ages build strength, confidence, and independence through compassionate, creative care.
Empathetic by nature and resourceful by design, Treyes believes that “where there’s a will, there’s a way”—a mindset she brings to every client interaction. Her approach is shaped by a deep understanding of disadvantage and diversity, and she’s committed to making therapy accessible, empowering, and culturally responsive.
Tatiana completed her OTA degree at age 37 while raising three children with her husband—a milestone she calls her most rewarding achievement. She resonates deeply with Maya Angelou’s words: “If you're always trying to be normal, you will never know how amazing you can be.”
That spirit of authenticity and possibility guides her work across restorative models, rehabilitation strategies, and compensatory approaches—meeting clients where they are and helping them move forward with dignity and purpose.
Whether she’s adapting tools to fit real-life needs, translating clinical ideas into bilingual resources, or simply listening with intention, Tatiana brings a rare blend of insight, resilience, and heart to every corner of her practice.
Jill Lang
MS, EMT
Jill Lang is a certified Neurotechnician at the Brain Treatment Center NoVA, where she conducts quantitative EEG (qEEG) assessments and administers Magnetic e-Resonance Therapy (MeRT). She holds a Bachelor of Science in Biology with a concentration in Neuroscience and a minor in Pre-Medicine from James Madison University, as well as a Master’s degree in Biomedicine from Eastern Mennonite University.
Jill’s academic background emphasizes neurophysiology, human biology, and evidence-based approaches to brain health and recovery. In addition to her clinical training, she is a certified Emergency Medical Technician (EMT) and has provided direct patient care in emergency settings; experience that has deepened her understanding of neurological trauma and recovery.
In her current role, Jill is passionate about utilizing advanced neuromodulation technologies to help patients achieve cognitive and emotional well-being. She plans to pursue a certification in Integrative and Functional Nutrition to further expand her holistic approach to brain and body health. Jill believes in a patient-centered model of care that integrates neuroscience, compassion, and innovation to promote long-term healing and resilience.
Dinneen Evich
Dinneen Evich is a certified Neuro Technician at Brain Treatment Center Ashburn, where she works directly with patients administering EEG assessments and Magnetic e-Resonance Therapy (MeRT). Guided by the clinic’s commitment to science-informed, compassionate, whole-person care, she brings an attentive and patient-centered approach to every interaction. She holds a Bachelor’s degree in Liberal Arts with a focus in Theology from Christendom College, which informs her holistic perspective and respect for each individual’s healing journey. Inspired by her faith in God, she approaches her work with compassion and a belief in the body’s capacity for restoration. She is currently pursuing certification in Hyperbaric Oxygen Therapy and is dedicated to ongoing learning, integrity in care, and supporting patients in reaching their fullest potential.
Outside of the office, Dinneen enjoys cooking, going on walks, using doTERRA essential oils and spending time with loved ones. She lives in Ashburn with her family.
Mae Tolentino
Mae Tolentino is a certified and licensed Occupational Therapy Assistant in VA. She originally started her medical track as a Medical Assistant and later got her OTA degree at Northern Virginia Community College. At NOVA, she dove into leadership opportunities in being part of the program club and Student Government Association on campus where her love for helping others grew. She is currently pursuing certification and education in myofascial release and body work to assist in her work for the SPIN program offered at The Brain Treatment Center. In addition to being a COTA, Mae is a Certified Neurotechnician from MeRT WaveNeuro. Mae looks forward to helping anyone in any shape or form possible. Outside of work, Mae enjoys spending time with friends and family and trying to further her cooking and baking skills.
Chris Lessard
Chris Lessard is a retired Army Green Beret, instructor, and project manager. He is the owner of the Brain Treatment Center Ashburn, where they specialize in functional health and MeRT, a non-invasive treatment for depression, PTSD, and TBI.
Chris plays a key role in overseeing various aspects of the clinic and ensuring that cutting-edge therapies are accessible to veterans and the broader community.
Chris is a student at Liberty University, pursuing a Masters in Clinical Mental Health Counseling. Drawing from his personal experiences with TBI and PTSD, he plans to specialize in trauma therapy for special operations veterans, first responders, and their families. His goal is to provide tailored, compassionate care to those affected by the unique challenges of trauma.
He is a husband and father of four, living in the Northern Virginia area.