Northwest Occupational Medicine Center

Excellence Since 1972

Clinical Team


Photo of Jennifer Cann, MD

Jennifer Cann, MD

Specialty: Physical Medicine and Rehabilitation

Dr. Jennifer Cann received her MD from Wake Forest University School of Medicine in North Carolina.  She completed her internship in internal medicine at Temple University Hospital and her residency in Physical Medicine and Rehabilitation at Thomas Jefferson University, both in Philadelphia, PA.

Drawn to rehabilitation medicine by her experiences in exercise and fitness, Dr. Cann focuses on working with her patients to improve daily function and to enable them to resume the activities they enjoy.  Dr. Cann's special interests include sports-related concussion and injury, non-surgical management of musculoskeletal injuries and osteoarthritis and non-pharmacologic pain management.  She is also interested in using Botox for spasticity management and performing EMGs

In her leisure time, Dr. Cann enjoys outdoor activities, yoga, dance and painting.

Photo of Brad Lorber, MD

Brad Lorber, MD

Specialty: Physical Medicine and Rehabilitation. Nerve Conduction Studies

Dr. Lorber received his undergraduate education at Lewis & Clark College and then went on to complete his MD at Oregon Health Sciences University.  He completed his medical internship at St Vincent’s Hospital.  His residency was in Physical Medicine and Rehabilitation at Long Beach Veteran’s Administration and UC Irvine/Long Beach Memorial Hospital.  He was employed for several years with Neuromuscular Consultants in Sacramento before returning to Oregon to serve as the Assistant Medical Director and now Medical Director at NW Occupational Medicine Center in December of 1999. 


He is Board Certified and holds Diplomate status with the American Board of Physical Medicine and Rehabilitation.  He is a Fellow with the American Academy of Physical Medicine Rehabilitation.  He also has specialty training in Electrodiagnostic medicine including nerve conduction studies. 


He has served as Co-director of Northwest Occupational Medicine Center, Inc. for the past 12 years.


Photo of John Hamby, MD

John Hamby, MD

Specialty: Pain Management

Dr. Hamby completed medical school at Oregon Health Sciences University in 1985.  He completed his medical internship at Naval Hospital Oakland, in Oakland, California.  After serving 3 years as a general medical officer in the United States Navy, he returned to Oregon where he worked for seven years as the medical director for Willamette Falls Immediate Care and Occupational Health.  He subsequently practiced occupational medicine with Columbia Occupational Health Associates, Legacy Occupational Medicine and Cascade Occupational Health Associates.  In 2003, he began a practice specializing in pain management, with Progressive Rehabilitation Associates, in Eugene/Springfield and Portland.  He has been a member of the NWOMC staff since January, 2005.

Photo of Tiffanie Wheeler

Tiffanie Wheeler

Specialty: Medical Assistant

My career experience has been in insurance as a Worker's Compensation Claims Examiner.  I have worked for companies such as AIG and Sedgwick claims Services.


2 years ago I decided to pursue a degree in Medical Assisting.  I attended Everest College in Portland and graduated in April 2010 with an Associates Degree as a Certified Medical Assistant. 


Some of my favorite things to do are to go camping with my family, watch NASCAR racing, gardening and reading. 


Photo of Andrew Barnes, Ph.D., BCB

Andrew Barnes, Ph.D., BCB

Specialty: Health Psychology

Dr. Barnes graduated with honors from Skidmore College and received his MA and PhD in Clinical Psychology from Yeshiva University's Ferkauf Graduate School of Psychology.  He specialized in Health Psychology, working with cancer patients and their families while addressing research and clinical issues related to cancer prevention, treatment, and care. His doctoral thesis examined the psychological processes and correlates of smoking cessation.  Dr. Barnes completed an APA accredited internship at Oregon State University’s Counseling Center. His combined clinical and training experiences have lead Dr. Barnes to his current work with chronic pain along with general clinical psychology treatment and assessment.  Dr. Barnes is well versed in Health Psychology issues with a strong sensitivity to multi-cultural issues, the efficacy of a multidisciplinary approach to treatment and Men’s Issues.


Dr. Barnes is board certfied in general biofeedback, with specialis interest in treatment of chronic pain issues.


Dr. Barnes is an avid rock climber, mountaineer and long distance trail runner.  He is also a car enthusiast and enjoys the food and arts experiences of Portland.


Photo of Kim Goodale, Psy.D, BCB

Kim Goodale, Psy.D, BCB

Specialty: Health Psychology

Dr. Goodale holds Master’s and Doctoral degrees in Clinical Psychology from Pacific University.  During her doctoral training, she completed practicum training at St. John’s Medical Center, conducting assessments and consultations with chronic pain patients.  She completed her predoctoral internship at the Veteran’s Administration Hudson Valley Healthcare System in New York, where she gained extensive experience working with patients with a wide range of medical and psychiatric issues.  Dr. Goodale has also published and presented research on a variety of health-related psychological issues. 


Dr. Goodale is board certifed in general biofeedback. She has also completed a courses in basic hyponsis, primarily for pain management


Dr. Goodale enjoys hiking, running, camping, waterskiing, going to movies, and spending time with friends and family doing all of the above.

Physical Therapists

Photo of Greg Mortensen, PT, DPT

Greg Mortensen, PT, DPT

Specialty: Physical Therapist

Greg original worked in law enforcement, but became interested in physical therapy after becoming involved as a patient (feel free to ask him about his experience as a patient). In 2012, he attended Brigham Young University and graduated with a B.S. in Exercise Science. In 2015, he earned his Doctor of Physical Therapy degree from Eastern Washington University in Spokane, WA. He now works with the pain management, work conditioning and work hardening programs. 


Greg has spent time working as a physical therapist in a skilled nursing facility, both acute and outpatient settings. He also has experience as a personal trainer and enjoys playing sports, having been involved with soccer most of his life.

Photo of David Craddock, B.S.

David Craddock, B.S.

Specialty: Exercise Specialist

David holds a Bachelor of Science degree in Physical Education Health Promotion/Fitness Management from Southern Oregon University. Additional training includes a national certification in occupational hearing conservation (COHC) from CAOHC. 


David joined NWOMC in 1993 and is currently employed as a Rehabilitation Exercise Specialist.  He has specialty training in the areas of Spirometry, body composition, audiometric and vision screening.  In addition, his background features extensive training and work experience with exercise program.


David has competed in both bodybuilding and power lifting and has won awards and titles in both events.  He enjoys spending time with his family and friends, and also has personal interests in weight training, collecting unique watches, and commemorative stamps.

Occupational Therapists

Photo of Amy Danielson, OTD, OTR/L

Amy Danielson, OTD, OTR/L

Specialty: Occupational Therapist

Amy earned her Clinical Doctorate and Masters degrees in Occupational Therapy at the University of Southern California. Completing her doctoral residency at the USC Occupational Therapy Faculty Practice, Amy specialized in lifestyle interventions for management of various chronic issues such as migraine, anxiety, ADHD, and weight management. During this rotation, she also treated with USC’s Pain Clinic and the Head and Face Pain teams. Amy’s other clinical experiences range from wellness and prevention, skilled-nursing level care, and mental health. Following her graduation, Amy returned to her hometown of Portland, OR, and joined the team at NWOMC. Amy leads OT treatment in the Work Hardening and Injury Management programs, as well as conducts Functional Capacity Evaluations, Work-Hardening Evaluations, and treats patients with hand injuries.


Outside of clinical practice, Amy enjoys the arts, fishing, hiking, and spending time with friends and family.

Photo of Marcel Gose OTR/L

Marcel Gose OTR/L

Specialty: Occupational Therapy Supervisor

Marcel earned his degree in Occupational Therapy from Pacific University in 1996.  Since then, he has worked in many different facets of OT and rehabilitation as a whole.  His experiences include being a Regional Program Director for a large skilled nursing corporation, stroke rehab, sub-acute/acute rehab, orthopedics, gero-psych inpatient care, dementia care, and has been a certified personal trainer.


Marcel currently is the OT supervisor and work hardening program coordinator.  He also performs specialized evaluations including Physical and Work capacities evaluations, ergonomic assessments, and job site analysis.  

Marcel has established a relationship with Pacific University as a clinical fieldwork instructor for 1st and 2nd year OT students.  Most recently, he has been asked to be a clinical instructor for the University of Southern California in 2010. 

Marcel’s interests include playing competitive paintball and owns a team that has played nationally.  He also plays basketball, volleyball, and most recently started a dodgeball team.  Marcel loves to spend time with his wife and two young boys and travels to Hawaii with them at least once a year back to Hawaii where he grew up.