Our Staff
Dr. Jeffrey P. JohnsonJeffrey P. Johnson, M.D.
Certified by the American Board of Neurological Surgery

Dr. Jeffrey P. Johnson received his medical degree from Columbia University in New York in 1990, followed by a surgical intership at Columbia Presbyterian Medical Center and a clinical fellowship in Surgical Neurology at the National Institute of Health in Bethesda, Maryland in 1991-1992. He completed his neurosurgical residency at The Neurological Institute of New York, Columbia Presbyterian Medical Center, in 1997. Dr. Johnson was in private practice in Albuquerque, New Mexico before coming to St. Vincent Hospital in Portland, Oregon in September 2000. Dr. Johnson is board certified in neurosurgery.

Martha WiggersMartha Wiggers, PA-C
Certified Physician Assistant

Martha has been a practicing Physician Assistant for 4 years. She is originally from Texas where she received her Bachelors of Science in Nursing from the University of Mary Hardin-Baylor in 2009. After working as a nurse for several years she went back to school and received her Master’s in Clinical Medical Science and Physician Assistant Certificate from Barry University in Miami, Florida.

She moved to Portland, Oregon in 2015 and has greatly enjoyed working at Portland Neurosurgery since 2018. Martha works closely with Dr. Johnson to provide the highest level of care throughout the surgical process. She sees patients before and after surgery, as well as serving as the first assist during most procedures.

Email: Mwiggers@portlandneurosurgery.com

Lauri DaytonLauri Dayton
Office Manager & Patient Billing

Lauri is responsible for all administration as well as patient billing for Dr. Johnson.

Email: ldayton@portlandneurosurgery.com

Sherri SchochSherri Schoch
Medical Office Assistant

Sherri provides patients with medical assistance, pre and post operative instructions and prescription refills.

Email: sschoch@portlandneurosurgery.com

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Contact Us
Phone:(503) 291-1960
Fax:(503) 297-9195

Providence St. Vincent Hospital
9155 SW Barnes Road, Suite 836
Portland, Oregon 97225

Email Us
Jeffrey P. Johnson

Carmel Wimber

Assistant: Christine Amick
Billing: Lauri Dayton
Medical Assistant: Christine Amick