Executive Leadership

Josh Feldstein

President and CEO

Josh Feldstein is an applied health economist with a specialization in surgical robotics and robotic program optimization; an educator in robotic cost-effectiveness and related data analytics; a strategic business and market advisor to the US and international hospital and medical-surgical industries; and a published healthcare author and editor. Mr. Feldstein has designed and deployed groundbreaking, online cost-effectiveness analytic modeling and change management solutions in robotic surgery program design for hospitals and IDNs and for numerous other medical-surgical devices and pharmaceuticals. For more than 25 years, he has served the US and global hospital, medical-surgical device, and pharmaceutical industries, having managed hundreds of programs in the US and in more than a dozen countries globally. Mr. Feldstein serves as Pharmacoeconomics Editor of American Health and Drug Benefits. He received his BA cum laude from Queens College, CUNY, and has completed masters studies at Fairfield University and Andrew Jackson University.

Herb Coussons, MD

Medical Director and Senior Vice President

Herb Coussons, MD, is board certified in OBGYN specializing in obstetrics and gynecology, and is a nationally recognized robotics guest speaker and expert in robotics cost-effectiveness and program optimization. Dr. Coussons is Senior Medical Director for the CAVA Robotics Training Center at Bellin Health in Green Bay, WI. He was the first gynecologist in Wisconsin to perform robotic surgery, and performs single-site robotic surgery. Dr. Coussons received his Medical Degree from Louisiana State University Medical Center, Shreveport, LA, and completed his Internship and Residency in Obstetrics and Gynecology at Louisiana State University Medical Center. Dr. Coussons is also in private practice in Green Bay, WI at Women’s Specialty Care.

Rick A. Low, MD

Medical Director and Senior Vice President

Rick A, Low, MD, FACS, is a general / laparoscopic / robotic surgeon in private practice in Phoenix and Scottsdale, Arizona, in addition to his role as Medical Director and Senior Vice President at CAVA Robotics. He is Board Certified in General Surgery and is a Fellow of the American College of Surgeons. Born in Honolulu, Dr. Low received his MD from Johns Hopkins University School of Medicine, and completed his residency in general surgery at Cedars-Sinai Medical Center. Dr. Low has been on the leading edge of surgical technology beginning with single incision laparoscopic surgery in 2006 and continuing into robotics. In 2008, Dr. Low pursued intensive training in robotic surgery, and quickly established himself as a pioneer in this field. His motto, “Faster, Safer, Better, Cheaper” as it applies to robotics as compared to laparoscopic surgery was highly influential in helping to dispel early skepticism surrounding robotic surgery. He has performed over 1,000 robotic operations to date, and was among the first in the US to perform single-site cholecystectomy, ventral hernia repair and component separation. Dr. Low is a nationally renowned robotic surgery guest lecturer and educator. He has proctored over 400 of his surgeon colleagues and has assisted with the development of several hundred robotic programs nationwide. Dr. Low has lectured to thousands of surgeons internationally on the value and importance of computer-assisted surgery to improve patient outcomes, expand surgical repertoire, and optimize the cost-effectiveness of surgical interventions.

Assistant Medical Directors

Eugene O. Dickens, MD, FACS

Eugene O. Dickens, MD, FACS, specializes in general robotic and laparoscopic surgery. He is in private practice in Tulsa, OK, and graduated from the University of Tulsa in 1994. He earned his medical degree from the University of Oklahoma Health Sciences Center in 1998, and completed his general surgery residency at the University of Oklahoma College of Medicine-Tulsa in 2003. He is an Attending Surgeon at Hillcrest Medical Center and Tulsa Spine and Speciality Hospital in Tulsa; is a member of the American College of Surgeons; the Tulsa County Medical Society; and Tulsa Medical Missions. Dr. Dickens teaches widely on the subject of robotic surgery, serves as a robotic proctor, and speaks on robotic program optimization and cost-effectiveness.

Ali Borhan, MD, FACS

Ali Borhan, MD, serves as Urology Assistant Medical Director at CAVA Robotics, and is a board certified Urologist who has practiced in Phoenix since 2004. Originally from New York, Dr. Borhan attended Cornell University and received his MD from Albany Medical College. He completed his residency in Urology at the University of Rochester and is one of the first Urologic surgeons in the nation to be trained in Robotic and Advanced Laparoscopic techniques. He is widely regarded as one of the leaders in the field of Robotic urological surgery and has performed one of the largest case series in the state of Arizona; his practice has a regional and national draw. Dr. Borhan is a robotic surgery instructor, frequently traveling throughout the West Coast to train other surgeons in robotic and advanced laparoscopic techniques.

Jonathan W. Holmes, MD

Jonathan Holmes, MD, is a high-volume general robotic and laparoscopic surgeon at Clovis Community Medical Center in California. Dr. Holmes received his MD from the Ohio State University College of Medicine, and his BS in Biology from Duke University. In addition to his work with CAVA, Dr. Holmes serves as a proctor for Intuitive Surgical. In 2012, Dr. Holmes received the Outstanding Resident Award from the Society of Laproendoscopic Surgeons. He has published research in peer review journals, and specializes in advancing cost-effective robotic surgery.

Daniel R. Marcus, MD

Daniel Marcus, MD, is a robotic general surgeon and Chief of Staff at Marina Del Rey Hospital, where he helped establish the Robotic Surgical Program. He received his Doctor of Medicine degree from the Sackler School of Medicine in Tel Aviv, Israel, his surgical residency at Albert Einstein / Montefiore Medical Center and Columbia Presbyterian in New York, and his fellowship at the University of Oregon. Dr. Marcus regularly presents at surgical conferences on minimally invasive approaches to hernia.

Russell R. Martin, MD

Russell Martin, MD, is a Robotic and laparoscopic surgeon, with a focus in robotic cost-effectiveness and program efficiency at Clovis Community Medical Center in California. Dr. Martin has received the Compassionate Doctor Award (2014-2018), On-Time Doctor Award (2015-2018), and Patients’ Choice Award (2015-2018) from Vitals. He was an invited Faculty presenter at the 2017 SLS Minimally Invasive Surgery Week, and is a member of the Multi-Specialty Peer Review Committee at Clovis Community Medical Center. Dr. Martin has been a vital part of promoting efficient Robotic Surgical practice at multiple hospital systems by working directly with hospital administration and proctoring/instructing surgeons throughout the West Coast. He received his Medical Degree from Howard University College of Medicine, did a Surgical Internship at University of Southern California / Los Angeles County, and completed his residency at University of California San Francisco-Fresno.

Janie Myers, DO, FACOS, FACS

Janie Myers, DO, FACOS, FACS is a board certified advanced general robotic and laparoscopic surgeon. Dr. Myers launched the general surgery robotic program at Beaver Dam Community Hospitals in Wisconsin, and prior to that the Onslow Memorial Hospital robotic program in Jacksonville, NC. Dr. Myers brings a focus in robotic program clinical and cost data analytics, program efficiency and cost-effectiveness. Dr. Myers received her Doctor of Osteopathic Medicine degree from Philadelphia College of Osteopathic Medical in Philadelphia, completed her surgical residency at Midwestern / St James hospital in the Chicagoland area, and received Fellowship training in minimally invasive surgery at St. Joseph Hospital in Tacoma, WA. She is a Fellow of both FACS and FACOS, and remains active in both her national organizations and surgical medical education.

Del E. Ashcraft, Jr., MD

Del Ashcraft, MD, is an Ob/Gyn and a robotic surgeon, having performed more than 1200 robotic cases to date, making him one of Tennessee’s most experienced robotic surgeons and robotic instructors. Dr. Ashcraft led the introduction of robotic surgery at Tennova Hospital. He attended Mississippi State University, graduating with a degree in electrical engineering before pursuing his medical degree. He graduated from the University of Mississippi School of Medicine in 1993. Dr. Ashcraft completed his residency in obstetrics and gynecology at the Louisiana State University Medical School. After residency, he joined the staff at Chattanooga Women’s Specialties where he has been practicing for twenty years.
During his time in Chattanooga, Dr. Ashcraft has served as Obstetrics Section Chief at Parkridge East Hospital, Director of Maternal and Children’s Services at Hutcheson Medical Center, and Vice Chief of Staff for Parkridge Medical Center. He is board certified by the American Board of Obstetrics & Gynecology, a Fellow with the American College of Obstetrics and Gynecology, as well as a member of American Medical Association and the Society of Robotic Surgery.
In recognition of his service to women and their children abroad, Dr. Ashcraft received the Frist Humanitarian Award in 2012.

Michael O’Toole, MD

Michael O’Toole, MD, is board certified in robotic OBGYN surgeon, specializing in obstetrics and gynecology. He is Chairman of the Department of OBGYN at Bellin Hospital in Green Bay, WI. Dr. O’Toole received his Medical Degree from the University of Southern Alabama, and served his Internship and Residency in Obstetrics and Gynecology at St John’s Mercy Medical Center in Saint Louis, MO.


Jennifer Wilinski, Certified Surgical Technologist

Jennifer Wilinski has worked as a Level II Certified Surgical Technologist since 2004. In addition to her role at CAVA Robotics assisting hospitals and IDNs with robotic crew training,
Jennifer serves as a First Assist at Women’s Specialty Care in Green Bay, WI, and has completed the da Vinci robotic surgery certification. In addition to her surgical responsibilities,
Jennifer is responsible for supply purchasing, medical equipment management, and inventory management.

Cathie Goldberg, Surgical Technologist

Cathie Goldberg has worked since 2003 as an OR tech, specializing in da Vinci robotics. Cathie has worked at John C. Lincoln hospital and within the Honor Health System for 15 years, both in general surgery and gyn cases, having amassed thousands of cases of robotic experience. As Dr. Rick Low’s surgical tech for more than a decade, she has educated and trained OR crew throughout the US and numerous other countries around the world. Cathie Goldberg received her BS from Bryman College.


Chris Elfner,
CAVAlytics and Data Management Senior Advisor

Chris Elfner serves as senior advisor to CAVA Robotics, providing oversight on the CAVAlytics platform for its global robotic program data management services to hospitals and IDNs. Chris has 25 years of experience working with senior management in healthcare and hospitals, focusing on distilling disparate and complex data streams into information that creates knowledge to help drive smarter strategic decision making and cost effectiveness. In addition to healthcare, Chris has industry experience in business services, finance, insurance, and manufacturing. Chris Elfner has a BS in Computer Science from Boston College.

Mark S. Roberts, MD, MPP, Predictive Modeling Advisor

Mark Roberts, MD, MPP, is Professor and Chair of the Dept. of Health Policy and Management, University of Pittsburgh Graduate School of Public Health, serving as Professor of Medicine, Industrial Engineering, and Clinical and Translational Science. Dr. Roberts is a leader in global predictive modeling design and education within ISPOR and The Society for Medical Decision Making (SMDM). He is a practicing general internist at UPMC with 20 years of research experience that includes decision analysis and the mathematical modeling of disease. His expertise lies in cost effectiveness analysis; mathematical optimization and simulation; and the measurement and inclusion of patient preferences into decision-making problems. Dr. Roberts serves as the current president of the Society for Medical Decision Making. Dr. Roberts is the director of degree granting programs within the Institute for Clinical Research Education and has served as the associate editor of the journal Medical Decision Making. He has published over 100 manuscripts in peer-reviewed journals. Dr. Roberts earned his master’s degree in public policy at Harvard University’s Kennedy School of Government and his medical degree from Tufts University. He did his residency and fellowship in medicine at the New England Deaconess/Harvard Medical School.

Rob Handfield, PhD, Change Management / Supply Chain Advisor

Rob Handfield, PhD, is Bank of America University Distinguished Professor of Supply Chain Management at North Carolina State University, and Director of the Supply Chain Resource Cooperative. Dr. Handfield is an expert in change management; has published more than 100 articles in top management journals; and has consulted with over 25 Fortune 500 companies.

York Zöllner, PhD, PharmD, MSc, (Health Economics)
European Robotic Market Advisor

Dr. Zöllner is a full professor in Health Economics at Hamburg University of Applied Sciences and holds an affiliation at Charité–University Medicine in Berlin. He has served as Research Director for a leading EU healthcare consultancy and pharmaceutical company, specializing in Market Access, Pricing & Reimbursement, and Patient-Reported Outcome Measures. Dr. Zöllner is published in health economics, health policy, and outcomes research. He is a member of the editorial board of the Journal of Medical Economics (JME).

Mark JC Nuijten, MD, PhD, MBA, European Robotic Market Advisor

Professor doctor Mark Nuijten is a leading Health Economist and mathematical modeling expert, with expertise in EU-based reimbursement and payer relations. Based in Amsterdam, Dr. Nuijten serves as CAVA Robotics’ liaison throughout the EU, assisting with robotic surgery research; facility coordination (with surgeons and hospital administration); market access; and robotic cost effectiveness and financial modeling. Dr. Nuijten has published more than 180 papers; has served as a past Board Director of ISPOR; Chair of the Management Board of “Value in Health” and on its editorial advisory board; and has received the ISPOR Board of Directors Service Award in 2003-2004. Prof Nuijten is an Adjunct Professor at Istanbul Technical University and an academic supervisor of PhD programs at the University of Maastricht and Groningen in The Netherlands. After training as a physician and working in clinical practice, he received his MBA and PhD in Health Economics from Erasmus University, Rotterdam.

Information Technology, Data Management, and Statistical Services

John Robinson, VP of Information Technology

John Robinson is responsible for the design of strategic Information Technology plans. John has over 20 years of experience in Information Technology with leading firms such as Bell Atlantic Mobile and numerous Fortune 100 firms. John Robinson has dual undergraduate degrees in Business Administration and Computer Information Systems.

Bjoern Schwander, RN, BSc, MA, Director of Health Economics

Bjoern Schwander, RN, BSc, MA, is Director of health economics, statistics, and predictive modeling, and has worked in health outcomes research since receiving his nursing degree in 2001 at the district hospital in Lörrach. Bjoern then went on to study applied health sciences at the University of Applied Sciences in Magdeburg, receiving a BSc in applied health sciences. He has led and contributed to research projects in da Vinci robotics, health technology assessment, health economic modelling, reimbursement applications and research, and value dossiers. Bjoern has published numerous peer review journal articles in leading publications and is an active member in and contributor to DGGÖ – Deutsche Gesellschaft für Gesundheitsökonomie e.V, and ISPOR, the International Society for Pharmacoeconomics and Outcomes Research.

Chart Review

Marisa Merliss, RN, Chart Review Services

Marisa Merliss is a Registered Nurse, and manages CAVA’s RN team of chart reviewers. She has worked extensively at NY Presbyterian-Weill Cornell, NY Presbyterian-Columbia, Children’s Health Care of Atlanta-Egleston (affiliated with Emory University), Schneider’s Children’s Hospital, Phoenix Children’s Hospital, and overseas with Operation Smile. Marisa has clinical experience in Pediatrics, Transplant, Neonatal Intensive Care, and Ambulatory Surgery. Ms. Merliss has a BS in Nursing from the University of Connecticut.