Clinical Team

At NeuroStim TMS, you’re the most important member of our team.

Your commitment to treatment combined with our experience will offer you the optimum opportunity to find the relief from the depression you are seeking. The NeuroStim TMS Clinical Team is led by nationally recognized, board-certified psychiatrist, Dr. Kris Peterson, with 25 years experience of treating patients suffering from clinical depression. Our clinical staff is certified in TMS administration and leverages TMS therapy to revitalize our patients’ lives. We are focused on achieving positive, sustainable change for our patients.

MEET YOUR CLINICAL TEAM

Kris Peterson, MD
MEDICAL DIRECTOR

Dr. Kris Peterson has a distinguished 25-year career as a board certified Psychiatrist.  He earned his BS from West Point (USMA), his MD from Uniformed Services University and completed his residency in psychiatry at Walter Reed National Military Medical Center.  A decorated Colonel (RET), and a Northwest native, he previously served as the Chief of Psychiatry at Madigan Army Medical Center at JBLM in Tacoma, WA.

Tasha Morris, MD
PSYCHIATRIST

Dr. Tasha Morris is a board certified Psychiatrist with 17 years of clinical practice. She earned her MD from Columbia University College of Physicians and Surgeons and completed her residency at Dartmouth-Hitchcock Medical Center along with a fellowship at NYU School of Medicine. She served as an Instructor in Psychiatry at Dartmouth Medical School and currently as a Clinical Assistant Professor at UW-Harborview Medical Center.

Sarah Applegate
MDiv, MSN, ARNP, PMHNP

Sarah Applegate is a board certified Family Psychiatric Mental Health Nurse Practitioner.  She earned her PMHNP degree from Vanderbilt University.  Prior to nursing, she earned a Master of Divinity from Duke University and spent many years working in pastoral care and counseling, including positions with Carolina House, University Presbyterian Church, and Seattle Children’s Hospital.

Chandra Cogburn
MSN, ARNP, PMHNP

Chandra Cogburn is a board certified Psychiatric Mental Health Nurse Practitioner. She holds two undergraduate degrees from the University of Washington, a Master’s degree from Aspen University and a Master’s degree from Gonzaga University (PMHNP). Prior to practicing medicine, she earned two diplomas from Berklee College of Music in Boston, MA and worked as a film composer in Los Angeles.

Jessica Jajesnica
MSN, ARNP, PMHNP

Jessica Jajesnica is a board certified Psychiatric Mental Health Nurse Practitioner. She earned her BSN from Viterbo University and her MSN & PMHNP from the University of Washington. She spent her first 11 years in medicine with the US Army, including time at Madigan Army Hospital at JBLM, followed by 10 years in the private sector at Fairfax Hospital in Kirkland, WA (2008-2018).

Boyd Cowan
MSN, ARNP, PMHNP

Boyd Cowan is a board certified Psychiatric Mental Health Nurse Practitioner. He holds an undergraduate degree from Washington State University, and dual Master’s degrees in Psychology and Psychiatric Nursing (PMHNP) from Seattle University. Over the past decade, he has served in both outpatient and inpatient settings, including several South Sound hospitals and at the University of Puget Sound

Katrina
CLINIC MANAGER

Katrina Neff is the Clinic Manager in our Lakewood-Tacoma office. She has 15 years of experience in healthcare, including owning a midwifery practice for 7 of those years. Prior to joining NeuroStim, she managed a ketamine clinic and served as facility administrator for Davita, Inc. She holds Bachelor’s and Master’s degrees in Healthcare Administration and is earning her PhD in Psychology.

Karen
TMS COORDINATOR

Karen is a TMS Coordinator and administrative specialist. Prior to joining NeuroStim, she spent 22 years working in the education sector, including positions as a teacher, administrator and director. Karen holds multiple roles with NeuroStim in both patient advocacy and back office administration. She serves as a Lead Patient Advocate, TMS Coordinator, and Human Resources Director.

Crystal
TMS COORDINATOR

Crystal is a certified TMS Technician. She is passionate about health & wellness and has over 20 years of experience as a certified physical trainer, counselor, ministry leader, and life coach. She is a certified Biblical Counselor and has served as a Lay Pastor for 15 years. She spent 10 years as a YoungLife Leader and still mentors HS and college students. Her undergrad education was at Seattle Pacific University.

Trisha
BILLING COORDINATOR

Trisha joins NeuroStim with over 25 years of experience in the medical field. She has broad experience in patient care and office administration with the majority of her time spent in the Chiropractic and Sleep Medicine specialty fields. Trisha’s greatest expertise is in medical billing where she has over 10 years of dedicated experience managing the billing departments of high volume medical offices.

Marina
LEAD TMS TECHNICIAN

‎Marina is a certified TMS Technician. Prior to joining NeuroStim, she provided in-home health care services in the south Puget Sound region. She earned her Bachelor of Science degree in Psychology from the University of Washington and also attended Slavic Bible College in Jacksonville, Florida where she earned her Certificate of Ministry.

Madison
LEAD TMS TECHNICIAN

Madison is a certified TMS technician. She earned her bachelor’s degree in Biology with a minor in Psychology from Pacific Lutheran University. She has broad experience in patient care, previously working in a Physical Therapy Office for five years. Madison is an active volunteer for various non-profits throughout the greater Tacoma area working with youth and adults.

Brooke
TMS TECHNICIAN

Brooke is a certified TMS Technician who works part-time for NeuroStim while she works to complete her Bachelor of Science in Nursing at Georgetown University. She has also studied at PSU and Johns Hopkins University. She has worked in the hospital setting at the University of Washington, Georgetown Medstar Hospital, and Johns Hopkins’ Sibley Memorial Hospital.

Emmy
TMS TECHNICIAN

Emmy is a certified TMS Technician and Certified Nursing Assistant. She holds an AA degree in Pre-Nursing and has a passion for treating patients struggling with mental health issues. Emmy previously worked at Bethany at Pacific, where she specialized in patient rehabilitation with those diagnosed with dementia and Alzheimer’s. She also volunteers her time with Young Life Capernaum, women’s shelters and overseas mission trips.

Alex
TMS TECHNICIAN

Alex is a certified TMS Technician. He graduated from Western Washington University with a Bachelor’s in Psychology. While at WWU, he worked in a cognitive science lab and helped publish experiments on mind behaviors. His volunteer experience includes student teaching, building houses for the homeless abroad, and community support for mental health. Alex is passionate about neuroscience and novel treatments for psychiatric illness.

Eileen
TMS TECHNICIAN

Eileen is a certified TMS Technician. She has 15 years of healthcare experience across multiple industry specialties, including orthopedics, geriatrics, cardiology, occupational therapy, and mental health. Her greatest passion is mental health and geriatrics. She holds an Associate’s degree in Business Administration and is earning her Bachelor’s in Eldercare Administration.

Mandi
TMS TECHNICIAN

Mandi is a certified TMS Technician. She is new to the Northwest after recently relocating from the South. Mandi’s passion for mental health – along with her ‘southern charm’ – is a great asset to our Lakewood-Tacoma clinic. Prior to joining NeuroStim, she worked as a phlebotomist in a busy hospital setting in Alabama. Mandi holds an Associate’s degree in Applied Science.

Viktoriya
MA, TMS TECHNICIAN

Viktoriya is a certified TMS Technician and Medical Assistant, with a background primarily in senior care. Prior to joining NeuroStim she worked at Brookdale in Snohomish County as a patient advocate in their assisted living and senior care facility.  She earned her Associates of Applied Science Degree in Medical Assisting from Everett Community College.

Sydney
TMS COORDINATOR

Sydney has over a decade of experience in patient care and healthcare administration. She obtained her CNA in 2007 and has worked in several specialty fields, including mental health. She studied Health Information Management at Indiana University and earned her Certified Coding Specialist (CCS) certification through Winegrass Georgia Technical College.

Rebecca
TMS TECHNICIAN

Becca is a certified TMS Technician. She was formerly an intelligence analyst in the U.S. Air Force. She is also a former fitness instructor and representative for Nautilus Fitness Solutions. She has a 10-year history of volunteer work supporting disabled individuals and victims of assault. Becca holds a Bachelor’s degree in Health Science from Central Washington University.

Cherise
TMS TECHNICIAN

Cherise is a certified TMS Technician. She joins NeuroStim with experience in both healthcare administration and patient care, including positions with a heart and vascular medical clinic and most recently with Centralia Physical Therapy.  She holds an Associates degree from South Sound Community College and plans to pursue a Bachelor’s degree in the fall.

Carlie
TMS TECHNICIAN

Carlie has joined NeuroStim as a TMS Technician for the summer. She is pursuing her Bachelor’s of Science degree in Nursing and will enter her final year at Pacific Lutheran University in the fall of 2019. Carlie was a four-sport varsity athlete in high school and is a member of PLU’s track and field team. She has been a basketball coach for NBC Camps every summer since 2015.

Tarran
TMS TECHNICIAN

Tarran is a certified TMS Technician. She earned her Bachelor’s degree in Psychology at University of California Los Angeles. Tarran worked as a research assistant in UCLA’s Neuroscience Lab as an undergrad and postgraduate student. She is passionate about mental health and wellness and serving her community. She has been a volunteer for Make-A-Wish Foundation and mentored inner-city kids since 2015.

Emily
TMS TECHNICIAN

Emily is a certified TMS Technician. She joined NeuroStim in the summer of 2019 after relocating to the Pacific Northwest from California. Her healthcare background includes working as an emergency room technician, a caregiver for elderly patients with Alzheimer’s or Dementia, and as a health and wellness coach for the Special Olympics. She holds a Bachelor’s degree in Health Science from California State University Channel Islands.