Our Doctors

For over 50 years, the radiologists at Radiology Associates have prided themselves for being on the cutting edge of technology and providing compassionate care for their patients. With 3 facilities, from Templeton to Pismo Beach to Santa Maria, and working with local hospitals, they are able to help physicians and their patients with quick and accurate diagnostic imaging results. All 13 of the radiologists are accredited and continue to hone their skills every year, keeping up to date on the latest techniques and technology.

Timothy Auran, MD

Dr. Auran completed his undergraduate degree at the Ohio State University in Mechanical Engineering. He graduated Magna …

Timothy Auran, MD

Dr. Auran completed his undergraduate degree at the Ohio State University in Mechanical Engineering. He graduated Magna Cum Laude and was the President of the Mechanical Engineering Honor Society. He was interested in imaging even during his formative years, and worked with General Electric in developing various error detection routines on their most advanced CT scanner. Dr. Auran did his internship in General Surgery at Harbor-UCLA and has submitted a paper written with the joint support of Vascular Surgery and Radiology during this year, entitled “Characterization of Aortic Dissection Flap by CT Reconstruction.” Dr. Auran’s broad aptitude in imaging is reflected in his participation in composing three musculoskeletal case reviews for a book with Dr. Rajeev Varma, and creating two cases that were included in the American College of Radiology’s MRI Teaching File CD. His hard work and interpersonal skills were recognized when he was selected as the Chief Resident in Radiology for the 2006/2007 academic year. Dr. Auran is a member of the American College of Radiology, Radiological Society of North America, American Roentgen Ray Society, California Radiological Society, American Medical Association, Society of Interventional Radiology, Western Angiographic and Interventional Society, and Society of Interventional Radiology.

William C. Burnette, MD

Dr. Burnette received his B.A. degree in Public Policy Studies and his Doctor of Medicine degree from Vanderbilt University…

William C. Burnette, MD

Dr. Burnette received his B.A. degree in Public Policy Studies and his Doctor of Medicine degree from Vanderbilt University. His postgraduate training includes Internal Medicine at Vanderbilt University Hospital, Radiology at the Naval Medical Center in San Diego, and Neuroradiology at Oregon Health Sciences University. He has a Certificate of Added Qualifications in Neuroradiology. Dr. Burnette is a member of the American College of Radiology, Radiological Society of North America, California Radiological Society, American Society of Neuroradiology, and Western Neuroradiological Society.

Stephen R. Holtzman,
MD, MS

Dr. Holtzman received his B.A. in Psychobiology from Occidental College, Los Angeles, and his Doctor of Medicine …

Stephen R. Holtzman,
MD, MS

Dr. Holtzman received his B.A. in Psychobiology from Occidental College, Los Angeles, and his Doctor of Medicine degree from Dartmouth Medical School in New Hampshire. His postgraduate education was at Dartmouth-Hitchcock Medical Center. Dr. Holtzman joined RASLO in 2002 and became the CEO in 2010. He holds an M.S. degree from Dartmouth in Evaluative Clinical Sciences. He served on the American Board of Radiology’s Expert Panel in Cardiovascular Imaging. Dr. Holtzman is a member of the American College of Radiology, Radiological Society of North America, California Radiological Society, American Medical Association, Society of Interventional Radiology.

Erik M. Olson, MD

Dr. Olson received his B.S. degree in Chemical Engineering from Stanford University and his Doctor of Medicine…

Erik M. Olson, MD

Dr. Olson received his B.S. degree in Chemical Engineering from Stanford University and his Doctor of Medicine degree from Harvard Medical School. He also completed the combined graduate program at Harvard-MIT Division of Health Sciences and Technology. He completed his residency and a fellowship in MRI at the UC San Diego School of Medicine. Dr. Olson was also a Clinical Professor of Radiology at the UCSD School of Medicine. He is a member of the American College of Radiology, Radiological Society of North America, American Roentgen Ray Society, California Radiological Society, and Santa Barbara County Medical Society, California Medical Association.

David J. Tuttle, MD

Dr. Tuttle completed his fellowship training in 2012 at the Mallinckrodt Institute of Radiology at Washington University…

David J. Tuttle, MD

Dr. Tuttle completed his fellowship training in 2012 at the Mallinckrodt Institute of Radiology at Washington University in St. Louis in Musculoskeletal Radiology and Spine Intervention. Mallinckrodt is considered one of the top programs in the country for radiology, and their musculoskeletal program is highly regarded. During his residency years, Dr. Tuttle was selected to be Chief Resident in Radiology for the 2009-2011 academic years. He also served on the Resident and Fellow Board of the New York State Radiological Society. Dr. Tuttle was elected Secretary/Treasurer from 2008-2009 and also President from 2009-2010.  He is a member of the American College of Radiology.

Dr. Jaywant Parmar, MD

Dr. Jaywant Parmar received his B.S. in Theoretical and Applied Physics from UCLA. His postgraduate training…

Dr. Jaywant Parmar, MD

Dr. Jaywant Parmar received his B.S. in Theoretical and Applied Physics from UCLA. His postgraduate training includes Engineering and Public Policy at Carnegie Mellon University, Medical Doctorate and Interventional Radiology Fellowship at the University of Virginia School of Medicine.  During his residency years, Dr. Parmar was selected to be President of Medical Housestaff for the 2004-2005 academic years. Dr. Parmar lives in San Luis Obispo with his wife.

Thomas L. Miller, MD, MHA

Dr. Miller received his B.S. degree in Biophysics and his Doctor of Medicine degree from Loma Linda University…

Thomas L. Miller, MD, MHA

Dr. Miller received his B.S. degree in Biophysics and his Doctor of Medicine degree from Loma Linda University. He completed his internship, residency and subsequent fellowship training at the University of Rochester. He also completed fellowship training in Angiography in Buffalo, New York and at Santa Barbara, California. Dr. Miller also holds a Master’s degree in Healthcare Administration from the University of Colorado.

Dr. Timothy Davis, MD

Dr. Timothy Davis completed radiology residency in 2000 at Mallinckrodt Institute of Radiology at Washington…

Dr. Timothy Davis, MD

Dr. Timothy Davis completed radiology residency in 2000 at Mallinckrodt Institute of Radiology at Washington University in St. Louis. His MD (Harvard, 1996) and PhD  in Medical Engineering (MIT, 1997) were both through the Harvard-MIT Division of Health Sciences and Technology.  After residency, Dr. Davis served on the Harvard faculty as a radiologist at Massachusetts General Hospital. He served as a staff radiologist at Northwest Radiology in his home state of Indiana, before moving to the central coast in 2019.  Dr. Davis specializes in breast imaging and intervention, body imaging and intervention. Dr. Davis lives in Shell Beach with his wife.

Dr. Taylor Jordan, MD

Dr. Taylor Jordan received his BA in Biology from Claremont McKenna College, his Doctor of Medicine from…

Dr. Taylor Jordan, MD

Dr. Taylor Jordan received his BA in Biology from Claremont McKenna College, his Doctor of Medicine from George Washington University School of Medicine and completed his residency at Santa Barbara Cottage Hospital. Dr. Jordan completed his Abdominal Imaging fellowship at UCSF. Dr. Jordan was a graduate of Paso Robles High School and moved back to the area 5 years ago. He currently lives in Templeton with his wife and two daughters.

Dr. Felix Yap, MD

Dr. Felix Yap received his BS in Biomedical Engineering from Duke University before completing his residency…

Dr. Felix Yap, MD

Dr. Felix Yap received his BS in Biomedical Engineering from Duke University and MD from University of Illinois at Chicago before completing his residency and fellowship at USC. He was recognized as the USC Resident Medical Student Educator of the Year in 2017 and Resident of the Year in 2018, respectively. Dr. Yap currently resides in Pismo Beach and enjoys bicycling and meditation.

Dr. David Rigual, MD

Dr. David Rigual received his BS in Marine Engineering Systems from the United States Merchant Marine Academy…

Dr. David Rigual, MD

Dr. David Rigual received his BS in Marine Engineering Systems from the United States Merchant Marine Academy before obtaining his Master’s in Nuclear Engineering from MIT. He completed his residency at the University of Colorado and an Interventional Radiology fellowship at UCLA. Dr. Rigual currently resides in San Luis Obispo with his wife and newborn daughter.

Dr. Melissa Sims, MD

Dr. Melissa Sims completed her internship at Harbor UCLA Medical Center before completing her residency at Stanford…

Dr. Melissa Sims, MD

Dr. Melissa Sims completed her internship at Harbor UCLA Medical Center before completing her residency at Stanford University. During her residency, Dr. Sims was a Student Research Investigator for the Oswaldo Cruz Foundation in Rio de Janeiro, Brazil. She completed her fellowship with the National Orthopedic Imaging Associates of San Francisco. Dr. Sims enjoys traveling, cooking, reading and spending time with her husband and two daughters.