AMFS is the nation's leading provider of medical expert witnesses. We maintain a network of thousands of actively practicing, board-certified physician medical experts as well as expert witnesses in all other health care related fields. Since 1990 we have provided medical expert witnesses to thousands of attorneys in thousands of cases, including medical malpractice, personal injury, wrongful death, criminal and other matters. Contact AMFS now for a free case analysis with our team of U.S. based Medical Directors.
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Michael Blumenkrantz, MD, FACP, FACN, CNSP, dFASN has over 40 years of experience specializing in Internal Medicine and Nephrology. Dr. Blumenkrantz is an internationally recognized expert in Internal Medicine, Dialysis, Kidney Disease, Total Parenteral Nutrition, and Nutrition. Achieving the rank of Associate Professor of Medicine (in residence) at UCLA, he has been in private practice for the past 30 years. Dr. Blumenkrantz is a Distinguished Fellow of the American Society of Nephrology.
Litigation Support - Dr. Blumenkrantz has been offering litigation support services to counsel representing both Plaintiff and Defense for 15 years. Approximately 40% of his cases involve renal issues and the remainder are in the field of internal medicine. Dr. Blumenkrantz has been involved in 350 cases in the past 15 years and has been deposed approximately 120 times. He has testified at 30 trials and arbitrations.
Areas of Expertise:
Anthony C Chang, MD, MBA, MPH, MS is internationally recognized as an expert in the field of Pediatric Cardiology. Dr. Chang has 30 years of experience and special expertise in Congenital Heart Disease and Perioperative Care as well as Cardiomyopathy and Sudden Death in pediatric patients. Dr. Chang has a master’s degree in Healthcare Administration from University of Miami School of Business and a master's degree in Biomedical Data Science from Stanford University. He also has a master’s degree in Public Health from UCLA, from which he graduated with the Dean’s Award for academic excellence. Doctor Chang - Being A DoctorDr. Chang has been offering litigation support services to the legal community for many years. His expertise is available to attorneys for both Plaintiff and Defense. Dr. Chang has been deposed and/or testified over 200 times since 1990. Areas of Specialization:
A world-renown leader in pediatric cardiology innovation, Dr. Chang is a member of the grant review committee for pediatric research at the National Institutes of Health. Respected in his field, Dr. Chang is a member the board of directors for the American Heart Association. Providing leadership in education, he has served with the faculty of UCLA School of Public Health (eMPH program) and has taught global health for UCLA’s eMPH. He also teaches pediatric cardiology to cardiology fellows and holds a volunteer faculty appointment at the UCLA School of Medicine. A prolific author, Dr. Chang is the chief editor of the textbook Pediatric Cardiac Intensive Care and the past president-elect of the Pediatric Cardiac Intensive Care Society (PCICS). He is the chief editor of the textbook Heart Failure in Children and Young Adults. He is a regular reviewer for “Circulation,” “Pediatric Critical Care Medicine,” “Critical Care Medicine,” and numerous other journals. Dr. Chang has been voted “Physician of Excellence” by the Orange County Medical Association and also selected as one of America’s “Top Doctors,” “Top Pediatricians,” and “Best Cardiologists” by several organizations. View Dr. Chang's Consulting Profile.
Elite Medical Experts works with attorneys to provide 100% Board-Certified physicians and surgeons practicing at the professorial level at the nation's leading universities. From Stanford to Yale, and from every medical and surgical specialty, Elite secures full-time practicing high-level experts from the nation’s most respected medical institutions. Each specialist is truly unique – a Board Certified professor with a dedicated clinical practice, extensive publications, and top-tier credentials from a major U.S. medical center. When an Elite expert aligns with your case, you have a powerful voice – ready to testify – on your side. Why choose Elite?
Kenneth A. Stein, MD
Board Certified Emergency Medicine & Internal Medicine
Subspecialty Certified in NeuroCritical Care
Kenneth A. Stein, MD, ABPS, ABIM, UCNS, is Assistant Clinical Professor in the Department of Emergency Medicine, St. Louis University School of Medicine (a Level 1 Trauma Center). Dr. Stein currently practices Emergency Medicine and Critical Care / Intensive Care Medicine. For 20 years, Dr. Stein was an Emergency Physician at St. Anthony's Medical Center of St. Louis, one of the busiest emergency departments in the State of Missouri.
Dr. Stein has extensive experience in providing medical-legal expert services, having reviewed over 500 cases (both plaintiff and defense) and having given testimony over 200 times. Dr. Stein furnishes an unbiased opinion on medical malpractice/negligence cases. He also provides medical opinion concerning causation. Dr. Stein does not guarantee a favorable outcome but provides an honest assessment.
Dr. Stein has lectured nationally, and consults in the area of Pharmaceutical and Biomedical Product Development and Marketing.
Dr. Stein reviews cases (for both Plaintiff and Defense) of alleged Medical Malpractice / Negligence in areas including:
Services provided include:
Call 314-495-7009 for a complete CV, including presentations.
Dr. Patricia J. Bartzak, DNP, RN, CMSRN, is a skilled hospital nurse clinician with 18 years of direct nursing care of patients with infectious diseases and trauma patients, including injuries and diseases related to neurologic, cardiac, renal, renal transplant, spinal, orthopedic and acute and chronic pain and oncologic diagnoses. Located on the east coast with current nursing licenses both in Massachusetts and California. Has reviewed more than 50 cases in 5 years, written several reports, and been deposed about 8 times in person and video. Currently working in a hospital designated as level-1 trauma center.
Continued active contributions to the field of nursing as nurse educator, nurse researcher, professional journal column editor and leadership initiatives through active participation in professional nursing organizations. Currently serving a second term as an elected Regional Coordinator for Sigma Theta Tau, the nursing honor society.
Direct care experience with complex airways, cervical instability, multi-drain management, invasive monitoring, complex wounds, pain management and surgical interventions from many services: orthopedics, neurology, general surgery, thoracics, infectious disease and gastrointestinal medicine.
Currently co-chairing the American Nurse's Association (ANA) Scope & Standards of Practice (4th edition), a document that guides nursing practice for the country's 4 milllion nurses.
Nurse educator for several years from undergraduate through the doctoral level including courses in medical-surgical nursing, pathophysiology, psychiatric nursing, nursing research and pharmacology, simulation and clinical rotations.
Column writer for Nursing Evidence-Based Practice column, having published dozens of articles on safe bedside nursing care. Peer reviewer for the Journal of Trauma Nursing.
Served as a nurse voting members of an Institutional Review Board (IRB) with current Collaborative Institutional Training (CITI) certification.
Professional nursing certifications in medical-surgical nursing, trauma nursing, burn nursing and telemetry.
The Physician Assistant Experts Network™ is a referral resource for attorneys seeking expert medical opinions on the standard of care provided by physician assistants and advanced nurse practitioners. The PA Experts Network™ was founded by Jeffrey G. Nicholson, PA-C, Ph.D., M.Ed., MPAS, an experienced medical-legal consultant and a leader in the physician assistant profession. He will either help you personally or facilitate a physician assistant expert from his network of board certified Physician Assistant Experts in all medical specialties. See his article on this website. Practicing 29 years, a PA Educator, Assistant Professor, and Director of the University of Wisconsin Physician Assistant Program.
Education and Certifications:
Robert M. Stark, MD, has 40 years of experience practicing Internal Medicine, Cardiology, and Preventive Medicine. A graduate of Harvard Medical School, he is in full-time practice in cardiology and internal medicine.
Dr. Stark is past-president of the Connecticut Society of Internal Medicine. He serves as Adjunct Clinical Professor of Medicine at New York Medical College. and Director of his hospital’s Cardiovascular Prevention Program. Dr. Stark teaches residents and medical students as Adjunct Clinical Professor of Medicine. He also speaks frequently on cardiovascular topics for lay and professional groups as well as the media.
Litigation Support: Dr. Stark has 20 years of litigation experience in state and federal jurisdictions. He has served as a senior member of his state’s Medical Malpractice Claims Review Panel, where he helped determine the defensibility of cases on behalf of malpractice insurers and individual law firms. He also had responsibility for advising on defensibility of cases for Aetna Life & Casualty and CNA Insurance, as well as for individual law firms.
Dr. has given deposition and trial testimony in over 125 cases. He specializes in reviewing and explaining medical treatments and potential complications of cardiac conditions, and in evaluating medical treatments for standard of care. Dr. Stark provides summaries and reports that are cogent and complete. He firmly believes that the ability to communicate effectively is as essential to medicolegal work as it is to quality patient care.
Cardiovascular Disease and Internal Medicine Expertise: