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.

Michael Reburn, M.D., F.A.C.R.

Dr. Michael Reburn received his B.S. degree in Biology from Creighton University, Omaha Nebraska and then went to…

Michael Reburn, M.D., F.A.C.R.

Dr. Michael Reburn received his B.S. degree in Biology from Creighton
University, Omaha Nebraska and then went on to obtain his medical degree at
Creighton University School of Medicine.

He completed his residency at the Department of Radiology at Creighton
University Medical Center and also completed an internship in the
Department of Internal Medicine.

Dr. Reburn has been a General Radiologist for close to 30 years and enjoys
all facets 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.

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.

Dr. Kenneth Jamison

D. Kenneth Jamison, M.D.

Dr. Jamison received his B.S. degree in Mechanical Engineering at the
University of Houston, Tx…

D. Kenneth Jamison, M.D.

Dr. Jamison received his B.S. degree in Mechanical Engineering at the
University of Houston, Tx. He then earned a PhD in Bioengineering at Rice
University and his Doctor of Medicine degree from Mount Sinai School of
Medicine in New York. He had a preliminary year at Kaweah Delta Health
Care District in Visalia, CA and then went on to The Mayo Clinic in
Phoenix, Az to complete his Diagnostic Radiology Residency and a fellowship
in Nuclear Radiology. Dr. Jamison comes to us after completing a
Neuroradiology Fellowship at Stanford Medicine in Palo Alto, CA.

Corey Hiti

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.

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.

Karan Gulaya

Darren Steele, D.O.

Dr. Steele received both a Bachelor of Science degree in Chemistry and a Bachelor of Arts degree in Physics at the California State University, Sacramento…

Darren Steele, D.O.

Dr. Steele received both a Bachelor of Science degree in Chemistry and a Bachelor of Arts degree in Physics at the California State University, Sacramento. He obtained his Doctor of Osteopathic Medicine from Touro University Nevada. He did his Internship at Spectrum Health/Michigan State University where he also completed his Diagnostic Radiology Residency. Dr. Steele went on to complete his Fellowship in Musculoskeletal Radiology at the University of Southern California.

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.

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.

Karan Gulaya

Mario Cedillo, M.D.

Dr. Cedillo received a Bachelor or Science degree in Molecular Cell and Developmental Biology from UCLA. He obtained his Doctor of Medicine…

Mario Cedillo, M.D.

Dr. Cedillo received a Bachelor or Science degree in Molecular Cell and Developmental Biology from UCLA. He obtained his Doctor of Medicine degree at Cornell University where he also did an internship in General Surgery. He completed his residency in Diagnostic Radiology and his fellowship in Vascular and Interventional Radiology at Mount Sinai Medical Center in New York. He speaks fluent Spanish and French.

Dr. Cedillo is a member of Society of Interventional Radiology, Radiologic Society of North America, and American College of Radiology

Ammar Moiyadi, M.D.

Dr. Moiyadi received his Bachelor of Science degree at UCLA and his medical degree at Saint Louis University…..

Ammar Moiyadi, M.D.

Dr. Moiyadi received his Bachelor of Science degree at UCLA and his medical degree at Saint Louis University.  He went on to complete his Diagnostic Radiology residency at Kaiser LA and later finished his Interventional Radiology fellowship at Mayo Clinic, Arizona.

He is a member of the American Board of Radiology and Society for
Interventional Radiology.

Chad Selph, M.D.

Dr. Selph received his Bachelor of Science, Biology degree from the University of Florida and his Doctor of Medicine degree from University of Central Florida….

Chad Selph, M.D.

Dr. Selph received his Bachelor of Science, Biology degree from the University of Florida and his Doctor of Medicine degree from University of Central Florida College of Medicine.  He completed his Diagnostic Radiology Residency at the University of Colorado-Anschutz and his Interventional Radiology Residency at the University of Washington.  He is a member of American Medical Association, American College of Physicians, Radiological Society of North America, American Roentgen Ray Society and Society of Interventional Radiology.

Karan Gulaya

Karan Gulaya, M.D.

Dr. Gulaya received his B.A. in Film Studies from Columbia University in New York and then obtained his medical degree at Tulane University School of Medicine…..

Karan Gulaya, M.D.

Dr. Gulaya received his B.A. in Film Studies from Columbia University in New York and then obtained his medical degree at Tulane University School of Medicine in New Orleans. His training includes an Internal Medicine internship at NYU Medical Center in New York and Diagnostic Radiology
residency at Northwestern University in Chicago. After residency, he completed a fellowship in Vascular and Interventional Radiology at Northwestern.

His areas of interest include Interventional Oncology, Hepatobiliary Interventions and Venous Thromboembolic Disease.

Dr. Gulaya is a member of the Society of Interventional Radiology and the Radiological Society of North America.

eric wyatt

Eric R. Wyatt, M.D.

Dr. Wyatt is a diagnostic and interventional radiologist with more than 20 years of experience. He earned his medical degree from SUNY HSC at Brooklyn…..

Eric R. Wyatt, M.D.

Dr. Wyatt is a diagnostic and interventional radiologist with more than 20 years of experience. He earned his medical degree from SUNY Health Science Center at Brooklyn and completed his Diagnostic Radiology residency and Vascular & Interventional Radiology fellowship at LAC/USC Medical Center in Los Angeles.

Dr. Wyatt has been a partner with Hawaii Radiologic Associates since 2002. He has served as both Vice Chair or Chair of the Department of Radiology for 24 years as well as Chief of Interventional Radiology at Hilo Medical Center. He was also serving on the hospitals medical executive committee for 10 years .  His clinical interests include breast imaging, vascular and interventional radiology, CT, MRI, nuclear medicine.

Outside of work he enjoys hiking, traveling, and hanging out with his family.  And as time allows staying busy doing something close to nothing.

Karan Gulaya

Aaron F. McBride, M.D., M.S.

Dr.McBride completed undergraduate studies at Brigham Young University with a major in Microbiology, a minor in Spanish, and completed…..

Aaron F. McBride, M.D., M.S.

Dr. McBride completed undergraduate studies at Brigham Young University with a major in Microbiology, a minor in Spanish, and completed the Honors Program, during which he conducted an Honors Thesis on biochemical HIV research. He attended medical school at Cleveland Clinic Lerner College of Medicine, a specialized five-year program associated with Case Western Reserve University, earning his MD along with a Master of Science in Clinical Research, investigating new treatment strategies for hepatocellular carcinoma.

Following a General Surgery internship at University Hospitals Cleveland Medical Center and Diagnostic Radiology residency at Cleveland Clinic, he completed his Interventional Radiology Fellowship at Mayo Clinic Arizona, where he additionally earned a Microcredential in Artificial Intelligence.

He has written multiple textbook chapters and peer-reviewed articles. His clinical interests include interventional oncology, advanced musculoskeletal and pain interventions, and women’s and men’s health interventions.

Stefan Ploch

Stefan Ploch, M.D., M.P.H., M.S.

Dr. Ploch is a board-certified diagnostic radiologist with more than a decade of experience providing high-quality imaging interpretation…..

Stefan Ploch, M.D., M.P.H., M.S.

Dr. Ploch is a board-certified diagnostic radiologist with more than a decade of experience providing high-quality imaging interpretation and patient-centered care. He earned his Doctor of Medicine, Master of Public Health, and Master of Science degrees from Tulane University and completed his residency and Musculoskeletal Imaging Fellowship at Tulane School of Medicine.

Dr. Ploch has extensive experience in both hospital-based and teleradiology practices and has served in numerous leadership roles, including President of Carolina Radiological Associates and Medical Director of Radiology at Aiken Regional Medical Center. He is board-certified by the American Board of Radiology and is an active member of the Radiological Society of North America.

In addition to his clinical practice, Dr. Ploch has contributed to radiology education, research, and peer-reviewed publications throughout his career.

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