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).

Ashley Whitley
ASSISTANT CLINIC DIRECTOR

Ashley Whitley is a certified TMS Technician and Clinical Medical Assistant. She earned her bachelor’s degree in Health Science Professional Development and Advanced Patient Care at Grand Canyon University and her Associate of Arts Degree at EDCC. Over the last 10 years, she has served in her community and networked with various churches in the NW helping with projects, outreach events, and fundraisers.

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.

Chawnta
MA, TMS COORDINATOR

Chawnta is a TMS Coordinator and Administrator. She has 18 years of experience in the medical field. She spent her first 12 years working as a Medical Assistant before transitioning into medical administration and management. Prior to joining NeuroStim, she spent six years as the Operations Manager of a specialty medical clinic in the south Puget Sound region.

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.

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 are 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.

Kyle
TMS TECHNICIAN

Kyle is a certified TMS Technician. He graduated from Western Washington University with degrees in Toxicology and Spanish. While at WWU, he spent three years working in the NeuroScience Labs where he developed a career interest in neurology and psychology. He joined NeuroStim as a summer intern in 2018 and later became a full time TMS Technician. Kyle enjoys mountain biking and playing the piano.

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.

Soraya
TMS TECHNICIAN

Soraya is a certified TMS Technician and LPN. She served in the US Navy from 1998-2003, followed by 8 years working at the US Naval Hospital in Oak Harbor, WA. She earned her LPN from Skagit Valley College and has enjoyed working in the medical field for the last two decades. Prior to joining NeuroStim she worked as a TMS Technician at another clinic and is certified on both BrainsWay and MagVenture TMS devices.