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 16 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, M.D.

Chief Executive Officer

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

Timothy Auran, M.D.

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.

Dr. Auran started at RASLO in 2009 and became the CEO in 2020.

William C. Burnette, M.D.

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

William C. Burnette, M.D.

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,
M.D., M.S.

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

Stephen R. Holtzman,
M.D., M.S.

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 served as CEO from 2010 to 2020. 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, M.D.

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

Erik M. Olson, M.D.

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, M.D.

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

David J. Tuttle, M.D.

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.

Soumo De, M.D.

Dr. Soumo De received his BS degree in Mechanical Engineering from Stanford
University and his Doctor of Medicine…

Soumo De, M.D.

Dr. Soumo De received his BS degree in Mechanical Engineering from Stanford
University and his Doctor of Medicine degree from the University of Arizona.

He completed his internship at the University of Arizona and his radiology
residency at the University of Kansas.

He then completed a musculoskeletal imaging fellowship at the University of
Arizona and a body imaging fellowship at Cedars-Sinai Medical Center.

He is a member of the American College of Radiology.

Timothy Lu, M.D.

Dr. Timothy Lu received his Bachelor of Arts and Sciences degree in Microbiology & History at the University of CA, Davis….

Timothy Lu, M.D.

Dr. Timothy Lu received his Bachelor of Arts and Sciences degree in Microbiology and History at the University of California, Davis. He received a Master of Science in Physiology at Georgetown University and subsequently his Doctor of Medicine degree from Florida International University College of Medicine. He completed his Radiology residency at Albert Einstein Medical Center in Philadelphia, followed by a Neuroradiology fellowship at the University of Southern California.

Timothy Davis, M.D.

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

Timothy Davis, M.D.

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.

Deeshali Shah M.D.

Dr. Shah has been practicing in Southern California for the last four years. She completed her MRI MSK fellowship…

Deeshali Shah, M.D.

Dr. Shah has been practicing in Southern California for the last four years. She completed her MRI MSK fellowship with Radnet in Los Angeles, CA under the tutelage of Dr. John Crues and Dr. David Stoller. In fellowship, under the guidance of Dr. Crues and Dr. Gregory Applegate, Dr. Shah collaborated with team orthopedic surgeons and fellows to work with professional and high level athletes. Dr. Shah completed her Radiology residency with Michigan State University and Beaumont Hospital in Farmington Hills, MI. She received her medical school education from Western University in California and she attended the University of California at Berkeley receiving a Bachelor of Science in Biomedical Engineering. She has two beautiful children and enjoys traveling, exploring the outdoors, and yoga. Her husband is also a physician and together they are very excited to practice in the Central Coast.

Felix Yap, M.D.

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

Felix Yap, M.D.

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.

Michael Chervonski, M.D.

Dr. Chervonski completed his undergraduate degree in Biomedical Engineering from Georgia Tech..

Michael Chervonski, M.D.

Dr. Chervonski completed his undergraduate degree in Biomedical Engineering from Georgia Tech and subsequently earned his medical degree at the University of Southern California. He completed both his Diagnostic
Radiology residency and Interventional Radiology fellowship at New
York-Presbyterian Hospital / Columbia University Medical Center in NYC.

Lourdes Alanis, M.D.

Dr. Alanis received her B.S. degree in Anthropology/Premed and Doctor
of Medicine degree from UCLA…

Lourdes Alanis, M.D.

Dr. Alanis received her B.S. degree in Anthropology/Premed and Doctor
of Medicine degree from UCLA. As part of a dual degree program at UCLA she
earned an MPH degree in Health Policy and Management from the UCLA Fielding School of Public Health. She completed her internship in General Surgery at the UCLA Medical Center and her Diagnostic Radiology Residency at the Cooper University Health Care in Camden, New Jersey. She served as Chief Resident during her senior year in residency. She completed a Vascular and Interventional Radiology Fellowship at UCLA. Dr. Alanis is a member of the Society of Interventional Radiology, Radiological Society of North America, American College of Radiology, American Roentgen Ray Society, and American Medical Association.

Nanci Mercer, M.D.

Dr. Nanci Mercer received her Doctor of Medicine degree from the Medical College of Pennsylvania. She completed her residency at Oakwood Hospital…

Nanci Mercer, M.D.

Dr. Nanci Mercer received her Doctor of Medicine degree from the Medical College of Pennsylvania. She completed her residency at Oakwood Hospital and Medical Center in Michigan, a Neuroradiology fellowship at William Beaumont Hospital in Michigan and an Abdominal Imaging fellowship at the University of Chicago. Dr. Mercer is originally from Los Angeles, California. She and her husband have always planned to make their way back to the West Coast. She also has family living in Santa Barbara and San Francisco. She is very familiar with the Central Coast.

Raman Muhar, M.D.

Dr. Raman Muhar completed her B.S. degree at the University of California, Berkeley, and her medical degree at Ross University…

Raman Muhar, M.D.

Dr. Raman Muhar is from the Central Valley of California. She grew up
spending summers in San Luis Obispo. She completed her undergraduate degree at the University of California, Berkeley with a degree in Psychology. She completed her medical degree at Ross University, summa cum laude. Dr. Muhar did her radiology residency at St. Joseph Mercy Oakland in Michigan where she was chief resident. She then went on to pursue two fellowships at UC Davis in Body MRI and Women’s Imaging. Dr. Muhar likes to spend her free time with family and friends, preferably in beautiful places, especially the outdoors.

Brady Banta, M.D.

Dr. Banta received his B.S. degree in Biology from Abilene Christian University in Texas and a Doctor of Medicine degree from Texas A&M…

Brady Banta, M.D.

Dr. Banta received his B.S. degree in Biology from Abilene Christian University in Texas and a Doctor of Medicine degree from Texas A&M. He completed his internship and Otolaryngology Residency at Wake Forest University in Winston-Salem, NC. Dr. Banta is coming to Radiology Associates from Kern Radiology in Bakersfield. He is board-certified with the American Board of Radiology in Diagnostic Radiology.

Dr. Linda Mulder

Linda D. Mulder, M.D.

Dr. Mulder received her B.S. degree in Biochemistry from Pacific Union College in Angwin, California and her Doctor of Medicine degree from…

Linda D. Mulder, M.D.

Dr. Mulder received her B.S. degree in Biochemistry from Pacific Union College in Angwin, California and her Doctor of Medicine degree from Loma Linda University School of Medicine in Loma Linda, California.  Her post graduate training included Internal Medicine internship and Radiology residency at Loma Linda University Medical Center.  She was selected to be Chief Resident during her senior year of residency training.  She completed a fellowship in Magnetic Resonance Imaging at Loma Linda University Medical Center.  Dr. Mulder was an Assistant Professor of Radiology at LLUMC. She is a member of the American College of Radiology, Radiologic Society of North America and California Radiologic Society.

dr. arthur c. duberg

Arthur C. Duberg, M.D.

Dr. Duberg received his B.S. degree in Biology from UCLA and his Doctor of Medicine degree from Yale University Medical School…

Arthur C. Duberg, M.D.

Dr. Duberg received his B.S. degree in Biology from UCLA and his Doctor of Medicine degree from Yale University Medical School. He completed his internship at Mercy Hospital Medical Center, San Diego, and his residency at Yale New Haven Hospital. He completed a fellowship in Neuroradiology at UC San Diego prior to joining RASLO in 1990. Dr. Duberg has earned a Certificate of Added Qualifications in Neuroradiology. He is a member of the Radiological Society of North America and American Society of Neuroradiology.

Dr. harry F. Corbett

Harry F. Corbett, M.D.

Dr. Corbett received his B.A degree in Psychology / Premed. from the University of Texas / Austin and his Doctor of Medicine degree from…

Harry F. Corbett, M.D.

Dr. Corbett received his B.A degree in Psychology / Premed. from the University of Texas / Austin and his Doctor of Medicine degree from the University of Texas Medical Branch, Galveston. He completed his internship in Internal Medicine at Long Beach Veterans Administration Hospital and his residency at the UC Irvine Medical Center. Dr. Corbett completed a fellowship in Interventional Radiology at the Texas Health Sciences Center, San Antonio, prior to joining RASLO in 1990. He is a member of the American College of Radiology, Radiological Society of North America, and California Radiological Society.

William M. Russell, M.D.

Dr. Russell received his B.S. degree in Zoology from Duke University and his Doctor of Medicine degree from New York Medical College…

William M. Russell, M.D.

Dr. Russell received his B.S. degree in Zoology from Duke University and his Doctor of Medicine degree from New York Medical College. He completed an internship in Internal Medicine at Wadsworth V.A. Hospital in Los Angeles, Radiology residency at UCLA, and fellowship training in Interventional Radiology and Body Imaging at St. Mary’s Medical Center in Long Beach. Dr. Russell practiced at St. Joseph’s Medical Center in Burbank prior to joining RASLO. He served as the Managing Partner/CEO of RASLO between the years 1998-2010. He is a member of the American College of Radiology and California Radiological Society.

Corey Hiti, M.D.

Dr. Corey Hiti completed his undergraduate degree in Human Biology at Stanford University, and subsequently earned his medical degree …

Corey Hiti, M.D.

Dr. Corey Hiti completed his undergraduate degree in Human Biology at Stanford University, and subsequently earned his medical degree at the
University of Miami Miller School of Medicine. He spent one year as a
preliminary medicine intern at the University of California Irvine followed
by radiology residency at the University of California Davis in Sacramento,
California. He underwent fellowship training at the Mayo Clinic in Arizona
in the field of musculoskeletal radiology.

Mark Barton, Jr, M.D.

Dr. Barton obtained his B.S.in Biology degree and Doctor of Medicine degree
from the University of Miami. He completed his internship…

Mark Barton, Jr, M.D.

Dr. Barton obtained his B.S.in Biology degree and Doctor of Medicine degree
from the University of Miami. He completed his internship in General
Surgery at Vanderbilt University Medical Center and his integrated
Interventional Radiology-Diagnostic Radiology residency program at the
University of Miami/Jackson Health System.
He is a member of the American College of Radiology, Radiology Society of
North America and the Society of Interventional Radiology.

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