Meet Our Physicians
Curtis K. Roebken, MD
Dr. Roebken graduated from the UCLA School of Medicine in 1971, and is Board Certified in Internal Medicine with extensive experience in Pulmonary Medicine and Critical Care Medicine. Dr. Roebken's combined experience includes over 30 years in private practice as well as inpatient ICU and critical care hospital settings. Dr. Roebken serves as Chief of Staff of Kentfield Hospital.
Ken Collinsworth, MD
Ken A. Collinsworth, M.D., graduated with a Bachelor of Science in A.B. from Occidental College. After finishing medical school at the University of Chicago, he completed his fellowship at Stanford University Medical Center and University of California, San Francisco. He is Board Certified in Internal Medicine and Cardiology.
Dr. Collinsworth has over 30 years of experience treating patients with primary care and cardiac issues.
Alex Barchuk, MD Dr. Barchuk is a Board Certified Physical Medicine and Rehabilitation physician since 1990. He specializes in traumatic and non-traumatic spinal cord injuries and has directed this program at Kentfield for the past 18 years. Dr. Barchuk received his medical degree from Georgetown University School of Medicine in 1985. He completed his internship at St. Mary’s Hospital and Medical Center in San Francisco in 1986. Between 1986 and 1989 Dr. Barchuk completed his Physical Medicine and Rehabilitation Residency at Stanford Medical Center in Palo Alto, California.
Khashayar Mohebali, MD Dr. Mohebali graduated from graduated from Ohio State University College of Medicine and Public Health. He also received his Residency and Fellowship in Plastic and Reconstructive Surgery from the University of California, San Francisco School of Medicine in 2010. Dr. Mohebali is the Medical Director for Wound Care at Kentfield Hospital.
Doris Purcell, M.D.Dr. Doris Purcell received her Doctor of Medicine from The State University of New York at Buffalo in 1998. She completed her Residency in Internal Medicine at St. Mary’s Medical Center in San Francisco. Doctor Purcell’s primary focus has been in hospital medicine for the past thirteen years. She currently lives in Pacifica and enjoys surfing and spending time with her daughters.