Medical Staff

An exceptional team of physiatrists oversees patient care at St. Luke’s Rehabilitation Institute. This group of physicians who specialize in medical rehabilitation offers a vast depth of expertise and many years of combined experience.

St. Luke’s Physiatry Practice  

715 South Cowley Street, Suite 210 
Spokane, WA 99202 
(509) 473-6706 
Fax: (509) 473-6704


Gregory T. Carter, MD, MS - Medical Director Gregory T. CarterMD, MS - St. Luke’s Physiatry Practice
Medical Director  

Dr. Greg Carter’s interest in medicine came from his father, a general surgeon.  After losing a close friend to Amyotrophic Lateral Sclerosis (ALS), he began researching better ways to ease symptoms of neuromuscular disease.  Dr. Carter co-founded the Muscular Dystrophy Association (MDA) / ALS Center at the University of Washington and the MDA Regional Neuromuscular Disease Center at Providence St. Peter Hospital in Olympia, WA.  He later received the Excellence in Clinical Care award from the MDA. 

In 2012 Dr. Carter received the Distinguished Researcher Award from the American Association of Neuromuscular and Electrodiagnostic Medicine (AANEM) and appointed to the AANEM board in 2014.  He is also the past recipient of the Best Research Paper Published by a Physiatrist Award from the American Academy of Physical Medicine and Rehabilitation as well as the Excellence in Research Writing Award from the Association of Academic Physiatrists. 

Dr. Carter graduated from Loyola University of Chicago, Stritch School of Medicine.  He is Board Certified by the American Board of Physical Medicine and Rehabilitation, American Board of Electrodiagnostic Medicine and the American Board of Psychiatry and Neurology with a subspecialty in neuromuscular medicine.  He completed a Physical Medicine and Rehabilitation residency and neuromuscular disease research fellowship at the University of California, Davis, where he also earned a Master’s degree in physiology. Following that he completed a MayDay Pain Fellowship at the University of Washington.

Dr. Carter is editor of the Physical Medicine and Rehabilitation Clinics of North America publication and senior editor for the medical journal Muscle and Nerve.

Dr. Carter enjoys spending time with his wife Carolyn and their four children, and playing guitar.


Dr. D'Souza

Keith D’Souza, MD - St. Luke’s Physiatry Practice
Brain Injury Program Medical Director

Dr. Keith D’Souza wanted to enter the field of medicine after his close family relative passed away from medical complications. His interest in Physical Medicine and Rehabilitation (PM&R) developed when he repeatedly encountered a 19-year-old paraplegic teenager in the emergency room. It turned out the teenager did not receive the necessary education about the effects and self-management of spinal cord injury. Brain Injury Medicine became important when a friend who was in his first month of medical school suffered a traumatic brain injury, impacting his life for years to come.

Dr. D’Souza is a graduate of St. John’s Medical College, one of the top 10 medical schools in India. After completing his PM&R residency in Illinois, he served initially as associate and later briefly as medical director of one of two closed Brain Injury Units in Illinois. He subsequently served as Brain Injury director at Veterans Affairs in Danville, Ill. At Veterans Affairs in St. Louis Mo., he served as section chief for PM&R, where he oversaw Inpatient Rehabilitation, Regional (VISN) Polytrauma and Traumatic Brain Injury Program, and the VISN Amputee Program. Dr. D’Souza most recently was the medical director for Inpatient and Outpatient Rehabilitation Services at the St. Elizabeth Hospitals in Ind.

In addition to his Board Certification in PM&R, he is also specialty Board Certified in Brain Injury Medicine and Electrodiagnostic Medicine. He has completed HMI’s Medical Acupuncture for Physicians training from CA. He has multiple publications and research presentations and received the “Friend of Social Work Award” for assisting social workers in meeting the needs of our nation’s heroes.  


Dr. Ensrud Erik Ensrud, MD - St. Luke’s Physiatry Practice

Dr. Erik Ensrud’s interest in becoming a doctor came from his mother’s love of people and his father’s work in medical education. He grew up around classrooms and farms of the University of Illinois. In fact, prior to entering medical school, he worked for the Minnesota Literacy Council and did research in bear hibernation. While doing summer research in dysphagia at Johns Hopkins as a medical student, he decided to pursue a combined residency in Physiatry and Neurology due to his love of the interdisciplinary work of rehab medicine and the science of neurology.

Dr. Ensrud graduated from University of Minnesota Medical School. He completed residencies in Physical Medicine and Rehabilitation and Neurology at Harvard Medical School, as well as a fellowship in Neuromuscular Medicine at Brigham and Women’s Hospital.  After completing his training, he served as the Co-Director of the Muscular Dystrophy Association (MDA) Clinics at the University of Texas Health Care Science Center in San Antonio. He then developed the largest Neuromuscular/EMG post-graduate training program in the country at the Boston VA Medical Center, as well as the Neuromuscular Rehabilitation Clinic at Brigham and Women’s Hospital.

Dr. Ensrud is a sought-after speaker around the country on neuromuscular, exercise and neurologic topics. He completed the American Academy of Physical Medicine and Rehabilitation (AAPMR) Leadership Development program in 2015 and is the President-Elect of the Pain/Neuromuscular Council of the AAPMR. He is the Committee Chair of the Neuromuscular Self-Assessment Exam Committee of the American Academy of Neuromuscular and Electrodiagnostic Medicine (AANEM). He is board-certified in Physical Medicine and Rehabilitation, Neurology, Neuromuscular Medicine and EMG.

Dr. Ensrud enjoys running, swimming, spinning, gardening, cooking, animals and spending time with friends and family. 


Joseph M. Gaines Joseph M. Gaines, PA-C, AT/L, ATC, CSCS - St. Luke's Physiatry Practice

Joe was drawn to medicine from his love of playing sports, and even through his own experiences with injuries. As a graduate of Whitworth University, Joe received his undergraduate degrees in Athletic Training and Health, Fitness and Physical Education. Joe is familiar with St. Luke’s, having worked as a therapy aide in the Outpatient Aquatics Program while in school. After graduating, Joe became Nationally Certified as an athletic trainer and strength conditioning specialist, working in physical therapy clinics and local high schools in Spokane.

Joe also worked at Spokane’s North Central High School as the athletic trainer and sports medicine teacher, taking care of athletes and teaching students about sports medicine and other medical professions. In 2011, Joe was one of eight athletic trainers presented with the National Athletic Trainers’ Association Gatorade Secondary School Athletic Trainer Recognition Award for his work.

Joe’s desire to continue learning medicine to help others led him to go back to school to become a physician assistant. He graduated with a master’s degree of Clinical Health Services from the MEDEX Northwest Program through the University of Washington.

As a member of St. Luke’s Physiatry Practice, Joe works with patients to improve their quality of life through rehabilitation and education. He is nationally certified as a physician assistant and a member of the American Academy of Physician Assistants (AAPA), Washington Academy of Physician Assistants (WAPA), National Athletic Trainers Association (NATA) and National Strength and Conditioning Association (NSCA).

An avid Denver Broncos fan, Joe enjoys playing sports, music, being outdoors and spending time with his friends and family.


New Dr GoodmanSteven R. Goodman, MD - St. Luke's Physiatry Practice 

Dr. Steven R. Goodman followed a unique path to medicine. Initially a mechanical engineer, he found that while he enjoyed the technical, problem solving aspect of engineering he missed the human dimension. Driven towards medicine, Dr. Goodman earned his Doctorate of Medicine at the State University of New York, School of Medicine in Buffalo, New York; interned at the UCSF-Mt. Zion Hospital and Medical Center in San Francisco, California; and completed his Physical Medicine and Rehabilitation residency at the University of Washington in Seattle, Washington.

Dr. Goodman believes medicine is a patient-focused art and looks to understand each patient, their unique challenges and their desired outcomes while drawing on the best of science in caring for them.

Dr. Goodman has a subspecialty interest in myofascial/soft tissue and musculoskeletal pain and serves as Clinical Associate Professor at the University of Washington. He is committed to timely and appropriate treatment to minimize chronic pain and disability. He is certified by the American Board of Physical Medicine and Rehabilitation and the American Board of Electrodiagnostic Medicine.

A strong Mariner’s baseball fan, he enjoys tennis, fly fishing and traveling with his wife.


New Dr GordonMark S. Gordon, MD - St. Luke's Physiatry Practice
Stroke Program Medical Director

Dr. Mark S. Gordon fell in love with medicine as a young boy, enjoying going to the doctor as a child - a memory that eventually led him into the profession of medicine. His love of teamwork and working with people focused him into the specialty of physiatry, where he treats the whole person for medical rehabilitation. Dr. Gordon enjoys helping patients relearn life-skills after a life-changing injury, working together with the patient, family members and therapists to achieve this goal. He also focuses on ensuring the patient is fully aware of his/her body’s condition in order to lead the fullest life possible.

Dr. Gordon received his Doctor of Medicine from the University of South Dakota School of Medicine, interned in psychiatry at the Eisenhower Army Medical Center and completed his residency in physical medicine and rehabilitation at the University of Michigan Medical Center. Dr. Gordon’s interest in medical rehabilitation started in the military where he served as a Flight Surgeon/General Practitioner for four years. He is Board Certified in physical medicine and rehabilitation and spinal cord injury medicine.

He loves the outdoors, believing the Pacific Northwest to be one of the most beautiful parts of the country.


Valerie Jones, MD Valerie Jones, MD - St. Luke's Physiatry Practice
Admissions Medical Director

Dr. Valerie Jones, a graduate of Columbia University College of Physicians and Surgeons, provides consultative service at acute care hospitals in Spokane and throughout the region and at St. Luke’s serves as Medical Director for Admissions. She was first drawn to medicine by the pediatric surgeon who saved her life as a child. She then became interested in rehabilitation medicine while caring for adults with disabilities as a group home assistant and through her work with the Ontario March of Dimes. She became a summer undergraduate research fellow at the Mayo Clinic department of biophysics where she studied craniofacial reconstruction prediction imaging software. She later went on to assist with vaccine research and then plastic and reconstructive surgery projects.

She completed her Rehabilitation Medicine residency as chief resident at Saint Vincent’s Catholic Medical Center in New York.  She then served as senior medical director for Revolution Health Group, volunteer physiatrist at Walter Reed Army Medical Center, Doc Talker Family Medicine and various hospitals as a locum tenens.  Dr. Jones is board certified by the American Board of Physical Medicine and Rehabilitation.

Dr. Jones is an award-winning writer, health journalist and physician educator.  She has been featured as a frequent medical expert on ABC News in Washington, DC and CNN Headline News as well as contributes to PBS and Scientific American online. She is also a member of the National Press Club, a podcast host for Johnson & Johnson Vision Care, Inc., a regular speaker at various medical conferences and a pioneer of using social media to advance medical knowledge.

Dr. Jones enjoys early morning, high intensity interval and strength training sessions six days a week. She is the owner of an exotic cat, has a ridiculous number of Delta frequent flier miles and has licenses to practice medicine in 13 states. 

Follow Dr. Jones on Twitter:   @drval

Her blog is:   http://getbetterhealth.com/


Jamie Lewis, MD Jamie Lewis, MD
Pain Program Medical Director

Dr. Lewis specializes in management and conservative treatment of spinal disorders. Dr. Lewis is part of the Inland Neurosurgery and Spine physician group and the Medical Director for the Structured Intensive Multidisciplinary Program (SIMP) at St. Luke’s Rehabilitation Institute in Spokane, WA.

Trained in the specialty of Physical Medicine & Rehabilitation, Dr. Lewis helps patients to return to activity without having to resort to surgery. He is fellowship-trained in pain management and is proficient in EMGs and the use of spinal injections to relieve back and neck pain symptoms.

Dr. Lewis completed his undergraduate work at the University of California at Riverside. He earned his medical degree from Loma Linda University School of Medicine and completed his residency at their affiliated hospitals in the Physical Medicine and Rehabilitation Department. Dr. Lewis is Board Certified in Physical Medicine and Rehabilitation and Board Certified in Pain Medicine.

Dr. Lewis served as chief resident in the department of Physical Medicine and Rehabilitation at Loma Linda University, and went on to complete a fellowship in Pain Management.


Keith Mackenzie, MDKeith Mackenzie, MD - St. Luke's Physiatry Practice  

Dr. Keith Mackenzie has been practicing rehabilitation for 37 years in Spokane. His wealth of experience and his strong interest in orthopedics, arthritis and neurology have allowed him to help many people with joint replacements, strokes, spinal cord injuries and arthritis regain functional lives and their independence. He has expertise with EMG/NCV testing and many physicians in the community rely on him to test their patients.

Dr. Mackenzie received his medical education at the University of Washington. He completed a Family Medicine Residency before completing his Physical Medicine and Rehabilitation Residency at the University of Washington. For many years he was a faculty member at the University of Washington teaching fourth year medical students and residents.

Certified by the American Board of Physical Medicine and Rehabilitation, Dr. Mackenzie is a published author.

He also enjoys having his patients tell him about their lives. "My grandmother lived with us when I was growing up and she taught me that everyone has an interesting story to tell about themselves." He feels this is one of the most interesting parts of his practice.

Outside his office, he is active in community projects and helps friends with technology problems. He enjoys the outdoors, golf and work in the garden.


Vivian M. Moise, MDVivian M. Moise, MD - St. Luke's Physiatry Practice
Spinal Cord Program Medical Director   

A strong connection with each patient is the guiding influence in Dr. Vivian Moise's care. She sees herself as being a patient educator as well as a physician and works to improve the quality of life of each patient.

Dr. Moise graduated with honors from the University of California, San Francisco. She completed her Physical Medicine & Rehabilitation Residency at the University of California Davis Medical Center, where she later served as Chief Resident. Board-certified by the American Board of Physical Medicine and Rehabilitation as well as in the sub-specialty of Spinal Cord Injury Medicine, Dr. Moise currently serves as Medical Adviser/Director of the Spinal Cord Injury Program at St. Luke's Rehabilitation Institute and also as Medical Director for the Spokane Muscular Dystrophy Clinic.

Dr. Moise specializes in the treatment of patients with spinal cord injuries, neuromuscular diseases, and musculoskeletal injuries.

She is also an avid gardener and teaches international folk dancing.


Rachel Ragosta, PA-C, RN Rachel Ragosta, PA-C, RN - St. Luke's Physiatry Practice
Hospitalist Medicine

Prior to becoming a PA-C, Rachel practiced as a Registered Nurse in medical, neuro and trauma intensive care.  Longing for more responsibility and education, Rachel pursued her love of hospital based medicine.  She was an award recipient of the United States Department of Health and Human Services to pursue graduate training at the University of Washington’s School of Medicine as a Physician Assistant.  As a student at UW MEDEX, she had the pleasure of working with St. Luke’s during a clinical rotation.  Rachel enjoyed bridging her experience with critical care medicine and hospital medicine during her time at St. Luke’s, especially enjoying managing the care of patient’s during their recovery process.  She relished her rotation so much, that she joined St. Luke’s full time after graduating in 2014. 

Rachel also continues to guest lecture on topics of pathology, clinical medicine and Human Rights at the University of Washington MEDEX program.  She is a member of the American Academy as well as the Washington Academy of Physician Assistants.  She has special interest in infectious disease, immunology, diabetic management and wound care.  She is also actively involved with the Polycystic Kidney Foundation and national research advocating for the cure of Autosomal Recessive & Dominant forms of Polycystic Kidney Disease. 

Outside the hospital, Rachel enjoys spending time with her family, her children and playing the guitar.


Greg Samson, MD Greg Samson, MD - St. Luke’s Physiatry Practice

Dr. Samson graduated from the University of North Carolina. Upon completion of his fellowship in Spinal Cord Injury Medicine at the University of Miami, Dr. Samson practiced as a staff physician at the Department of Veterans Affairs in Miami.  Over the course of the last three years, he has provided services as a locum physician across the nation to include New Hampshire, Florida, George, South Carolina and most recently Washington.   

Dr. Samson’s team approach has helped many patients on their rehabilitation journey, an approach he provides the Physiatry Practice for St. Luke’s.  




Karen Stanek, MD, PhDKaren Stanek, MD, PhD - Northwest Medical Rehabilitation

Blending compassion, empathy and expertise, Dr. Karen Stanek approaches patients with the desire to care for their physical, mental and spiritual well-being. Her philosophy of care seeks to help patients regain both their strength and independence.

Dr. Stanek received her MS and PhD in Exercise Physiology from the University of Wisconsin before receiving her medical degree from the University of Mississippi Health Sciences Center. She completed her residency in Physical Medicine and Rehabilitation at the University of Colorado. She also studied Business Administration and Management at the Harvard School of Public Health.

Dr. Stanek was Board Certified by the American Board of Physical Medicine & Rehabilitation in 1993 and re-certified in 2003. She served as Medical Director of Deaconess Rehabilitation Institute from 1993-1995 and is the founder of Northwest Medical Rehabilitation, her clinical practice. She specializes in brain injury, pediatric rehabilitation and complex spasticity management.

Dr. Stanek's personal interests include hiking and fishing.

Northwest Medical Rehabilitation
1315 North Division Street
Spokane, WA 99202
(509) 624-0908
Fax: (509) 459-0881


Patrice Stevenson, MD Patrice Stevenson, MD - St. Luke's Physiatry Practice 

Since age 17, Dr. Patrice Stevenson knew she wanted to practice medicine in the field of Physical Medicine and Rehabilitation. Improving function and quality of life for patients has been a fundamental focus for Dr. Patrice Stevenson throughout her career.

Prior to joining the St. Luke’s Physiatry Practice, Dr. Stevenson practiced as a Physiatrist and Medical Director at Confluence Health, Wenatchee Valley Hospital and as a treating Physiatrist and Medical Director at Multicare Good Samaritan Hospital in Puyallup, Washington.

Dr. Stevenson graduated from the University of Washington and completed her Physical Medicine and Rehabilitation Residency and Internship at West Los Angeles VA Medical Center.  Dr. Stevenson is board certified by the American Board of Physical Medicine and Rehabilitation with the subspecialty of Spinal Cord Injury Medicine.

Dr. Stevenson finds good patient communication an essential part of the rehabilitation process, and enjoys working with the rehab team to achieve the best patient outcomes.  


Mark R. Varga, MDMark R. Varga, MD - St. Luke's Physiatry Practice  

Dr. Mark Varga enjoys the union of interdisciplinary medical care and recovery of function in rehab medicine.

He began his medical training at George Washington University in Washington D.C. and then returned to NHSD, San Diego, Cali. He later transferred to Naval Air Station in Pensacola, Fla. for Naval Flight Surgeon Training. His US Naval operational medicine experience spanned Naval Aviation, primary care, emergency medicine and sports medicine. He served in the aviation community with Naval Strike and Air Warfare Center and Naval Search and Rescue.

Subsequently, Dr. Varga completed residency in Physical Medicine and Rehabilitation (PM&R) at Frazier Rehab/University of Louisville, Ky. He is board certified by the American Board PM&R and a musculoskeletal council member of the AAPM&R.

He relocated to Spokane in 1999 and has been an admitting physician to St. Luke’s since then. He has received multiple America’s Top Physicians awards since practicing in Spokane. He functions as the St. Luke’s medical rehab coordinator for the cardiac transplant mechanical heart service.

Dr. Varga’s key interests include inpatient neurological/stroke trauma, orthopedic cardiac/transplant rehabilitation, as well as outpatient musculoskeletal care.

He has three children and enjoys college basketball, soccer and coaching. He is a past NCAA collegiate coach, a two-sport-all-Navy athlete candidate and current member of the UC Riverside Athletes Association.


Douglas L. Weeks, PhD Douglas L. Weeks, PhD 
Director of Research

Dr. Weeks is formally trained as a statistician and research methodologist, and is well versed in all phases of research including writing grant applications, research design, data analysis, overseeing recruitment and intervention implementation for prospective studies, and overseeing data extraction and management processes for retrospective studies. His love for numbers and science started as a boy when his parents would catch him working through math problems in workbooks long after he was supposed to be asleep. 

Dr. Weeks received a PhD in 1989 from the University of Colorado in research design, statistical analysis, and evaluation methodology. Weeks has an extensive publication record in peer-reviewed basic science and clinical research literature, and has received research funding from federal and state agencies as well as private foundations.  He serves on the Editorial Boards for the American Journal of Physical Medicine and Rehabilitation and the Journal of Orthopedic and Sport Physical Therapy. He is also St. Luke’s representative to the Providence Research Leadership Council, and serves as co-chair of the Providence Health Care Institutional Review Board - Spokane. 

As Director of Research for St. Luke’s, his primary responsibility is to oversee all aspects of research and funded projects conducted at St. Luke’s, from study conception to dissemination of study findings. He works closely with all investigators who conduct research with inpatient and outpatient populations from St. Luke’s to assure study quality and regulatory compliance. In addition to conducting his own clinical research, Weeks often serves as a mentor to clinicians on the research process. His research interests include the study of chronic disease influences on health care outcomes, and interventions that can improve the quality of outcomes in medical rehabilitation populations. 

In addition to his love for his daughters, the Great Outdoors, his Portuguese Water Dog, and time on the tennis court, Weeks uses cooking for personal therapy.