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Our Team

Principal Investigators & Department Heads

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Walter Afable

MBA

Walter Afable is a healthcare executive with a wealth of experience in managing core and ancillary services in top rehabilitation hospitals...

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David Armstrong

DPM, MD, PhD

Dr. Armstrong is Professor of Surgery at the University of Southern California. Dr. Armstrong holds a Masters of Science in Tissue Repair ...

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Ziyad Ayyoub

MD

Ziyad Ayyoub, MD, is a renowned leader in the field of neurorehabilitation, serving as the Medical Director of Outpatient Specialty Care...

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Nicole Bayus

CTD Director

Nicole Bayus is the director of RRI's Clinical Trials Division (CTD). Ms. Bayus is an accomplished clinical research coordinator, having ...

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Michele Berro

OTR/L

Michele Berro, MA, OTR/L received her master’s degree in occupational therapy from the University of Southern California and has been a ...

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Remy Chu

MHA, OTR/L

Remy Chu is an Occupational Therapy Researcher and Supervisor with extensive experience in neurological rehabilitation. He holds a...

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Rajiv Dhamija

MD

Dr. Rajiv Dhamija is the Chief for the Division of Nephrology at Rancho Los Amigos National Rehabilitation Center, Associate Professor of ...

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Charles DuBourdieu

CPO

Charles “Chuck” DuBourdieu is a certified Prosthetist Orthotist and member of the American Board for Certification in Orthotics Prosthetic ...

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Reggie Edgerton

PhD

Dr. Reggie Edgerton has been studying neuromuscular plasticity for the last five decades. He has been principal investigator of ...

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Kreydin Evgeniy

MD

Evgeniy Kreydin is an Assistant Professor of Urology at the University of Southern California (USC) and on active clinical staff at Rancho ...

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David Ginsberg

MD

Dr. David Ginsberg is Chief of Urology at Rancho Los Amigo National Rehabilitation Center and Professor of Clinical Urology at the Keck ...

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Hui Gong

MD

Dr. Hui (Tory) Gong obtained her Medical Degree from Hunan Medical University’s western medicine program partnered with the Yale-China ...

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Barry Jordan

CMO

Barry D. Jordan, MD, MPH, is the Chief Medical Officer of Rancho Los Amigos National Rehabilitation Center in Downey, California. He ...

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Shailesh Kantak

PhD, PT

Dr. Kantak is the new Co-Director of the Pathokinesiology Laboratory. Dr. Kantak brings extensive knowledge and experience in rehabilitation...

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Andy Lin

MS, ATP

Andy Lin, MS, ATP is a rehabilitation engineer at the Center for Applied Rehabilitation Technology (CART) at Rancho Los Amigos National ...

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Charles Liu

MD, PhD

Dr. Liu is engaged in a broad spectrum of efforts that brings together the fields of engineering and medicine to develop systems-level ...

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Antonio Moya

MD, MPH

Dr. Moya is in the Department of Neurology at Rancho Los Amigos National Rehabilitation Center and Professor of Neurology at USC and ...

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Nina Patel

MD

Dr. Nina Patel is an Attending Physician at Rancho Los Amigos National Rehabilitation Center. She graduated from the MS Ramaiah Medical ...

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Jeff Rankin

PhD

Dr. Jeffery Rankin, PhD, is the Acting Director of the Pathokinesiology Laboratory and Co-director of the Rehabilitation Engineering ...

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Philip Requejo

PhD, CEO

Dr. Philip Requejo is the Chief Executive Officer (CEO) of Rancho Research Institute (RRI) and Director of the Rehabilitation Engineering ...

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Kevin Rolfe

MD

Dr Kevin Rolfe serves as the acute care director for the Southern California Spinal Cord Injury Model System through the Rancho Research ...

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Michael Scott

MD

Dr. Michael Scott is Co-Director of the Southern California Spinal Cord Injury Model System at Rancho Los Amigos National Rehabilitation ...

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Freddi Segal-Gidan

PA, PhD

Freddi Segal-Gidan, PA, PhD, has devoted her career to the care of older adults and those with disabilities. She is currently director and ...

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Susan Shaw

MD

Dr. Susan Shaw is the Associate Chief Medical Officer at Rancho Los Amigos, as well as Vice Chair of Neurology and Medical Director of the ...

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Yaga Szlachcic

MD

Dr. Yaga Szlachcic is the President of the Board of Directors of Rancho Research Institute. She previously served as the Associate Chief ...

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Tze-Woei Tan

MD, MPH

Dr. Tze-Woei Tan is a board-certified vascular surgeon and Director of Limb Preservation Research at Keck School of Medicine of the ...

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Lilli Thompson

DPT

Lilli Thompson, PT, DPT, NCS, is the Director of the Physical Therapy Department and Chief of the Rehabilitation Therapy Division at ...

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Dennis Wong

MD

Dr. Dennis Wong is the Chief and Medical Director of Primary Care Services at Rancho Los Amigos National Rehabilitation Center. He is a ...

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Hui Zhong

Researcher

Hui Zhong received a medical degree from Hebei Medical University and worked as attending physician and researcher in the Department of ...

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Aries Limbaga

DNP, RLA CEO

Aries Limbaga is the chief executive officer & chief nursing officer of Rancho Los Amigos National Rehabilitation Center (Rancho ...

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