Hypertension Consultants

Joshua A. Schwimmer, MD, FACP, FASN, is a Columbia-trained, double board-certified, full-time practicing Nephrologist and Internist based in New York City. He is on the medical staff at Lenox Hill Hospital in Manhattan and is an Assistant Professor of Medicine at the Zucker School of Medicine at Hofstra/Northwell. An award-winning physician-teacher of medical students and doctors, Dr. Schwimmer trained at New York-Presbyterian Hospital and the Columbia University College of Physicians & Surgeons. Dr. Schwimmer has published more than 30 scientific papers, abstracts, and book chapters; his scientific publications are cited in the medical literature and in textbooks; and his research has been presented at national and international conferences. Dr. Schwimmer is a fellow of the American College of Physicians and the American Society of Nephrology.

Degrees / Certifications: Nephrology Fellowship, Columbia University Medical Center, New York-Presbyterian Hospital. Internal Medicine Residency, Strong Memorial Hospital. M.D., University of Rochester School of Medicine and Dentistry. Board Certified in Nephrology. Board Certified in Internal Medicine. New York State Medical License.

Awards / Honors: Fellow of the American College of Physicians. Fellow of the American Society of Nephrology. Clinical Fellowship Award, National Kidney Foundation of NY and NJ. Clinical Fellowship Award, Kidney and Urology Foundation of America. Medicine Fellow of the Year Award for House Staff Teaching, Columbia University Medical Center. Human Values in Health Care Award, University of Rochester Medical Center. Phi Beta Kappa, Wesleyan University.

Litigation Support - Dr. Schwimmer is a Nephrologist (kidney specialist) and internist (general medical doctor) available for expert witness consultations to both defense and plaintiff attorneys. His services include medical record review, causation determination, thorough reports, depositions, and trial testimony as needed. He has provided expert review and testimony in cases involving:

Acute Kidney Injury Kidney Failure Hyperkalemia Hyponatremia Rhabdomyolysis Electrolyte Disorders

Hypertension Urinary Tract Infections Pyelonephritis End Stage Renal Disease Dialysis Other Medical Conditions

Dr. Robert Stark is a graduate of Harvard Medical School and presently teaches on the Clinical Faculty at New York Medical College.  He is past-president of the Connecticut Society of Internal Medicine, and has served as senior member of  Connecticut’s Medical Malpractice Claims Review Panel Dr. Stark is a senior member of his hospital’s Medical Ethics Committee.  He is in active, full-time practice in internal medicine and cardiology. Cardiac Testing: Appropriate utilization of cardiac tests: Holter Monitor – remote recording of heart rhythm. Stress Test – exercise EKG to detect coronary disease. Nuclear Stress Test – enhanced cardiac imaging with radioisotope tracer. C-T Angiogram – X-ray technique to image coronary arteries Cholesterol/Lipids Screening – blood tests to assess coronary risk.

Hospital Consulting:

Physician Burnout Physician Suicide Medical Disciplinary Actions Physician Licensing Medical Ethics

End-of-Life Issues Do Not Resuscitate (DNR) Medical Practice Management Medical Billing/Collections

Personal Message:

     “The ability to communicate effectively is just as important in consulting and expert work as it is in quality patient care.”

View Dr. Stark's Expert Witness Profile

Paul R. Minton, MD, FACC, FACP, has over 40 years of experience practicing medicine as a Cardiologist. Certified in Internal Medicine and in Cardiovascular Disease. Dr. Minton is a Fellow of the American College of Physicians, a Fellow of the American College of Cardiology, and was Governor for the American College of Cardiology in Maine. Licensed to practice in Maine and Georgia, Dr. Minton continues to practice as he is highly sought after by the legal  profession for his expertise in cardiac issues,especially myocardinal infarction and sudden death resulting from work and personal injury.

Litigation Support - Dr. Minton has been a consultant in Forensic Cardiology to the legal profession for over 35 years. His special interest is the impact of personal injury and work stress on the heart, and as factors in sudden death. Dr. Minton's cases involve Medical Negligence and Standard of Care issues in diagnosis and treatment of cardiovascular diseases. His services are available to counsel representing Plaintiff and Defendant and include medical record review, written reports, depositions, and trial testimony when necessary.

Medical Invention Consulting is a private firm providing Medical Technology assessment, commercialization, and investment services.  Medical Invention Consulting specializes in evaluating clinical utility, form factor, and market potential of medical inventions. Clients have included:

• Academic Institutions / Medical Device Start-Ups / Corporations - Assessing whether new medical technology should be patented and/or commercialized; efficacy of technology; need for the technology, market size, IP quality protection, clinical trial need / design / quality
• Medical Device Inventors - Giving advice regarding protection and commercialization of their ideas; ownership, market size, competition assessment, prototyping, clinical trial design, royalty / sale negotiation
• Medical Device Investors - Conducting due diligence on medical device investment opportunities; quality of the technology, product demand, market size, IP quality, clinical trial quality, competition assessment, business plan review, past / projected financials

Lloyd Marks, MD, MBA, FACC, Principal at Medical Invention Consulting, is an MIT trained Electrical Engineer, Johns Hopkins trained Pediatric Cardiologist, and Inventor. Always active in both medicine and medical engineering, Dr. Marks has been granted 22 Medical Device Patents. 

Background Experience - Dr. Marks was in academic medicine for 15 years, as the Director of the Cardiac Cath Lab at St. Christopher's Hospital for Children and the Division Chief of Pediatric Cardiology at the Children's Hospital of New Jersey. He was then in private practice for 18 years. In 1997 he opened his clinical practice, specializing in Pediatric and Adult Congenital Heart Disease, where he provided clinical evaluation, electrocardiography, echocardiography, stress testing, Holter/event monitoring, diagnostic cardiac catheterization, and interventional cardiac catheterization.

After closing his clinical practice in 2015, Dr. Marks went to business school and obtained an MBA from the Haslam School of Business, University of Tennessee. While there, he wrote a business plan with financial projections for his startup company, MGI Medical, LLC, commercializing a non-invasive patient monitor for the detection of post-operative bleeding. Dr. Marks has successfully licensed 9 of his inventions to industry and assigned 8 to MGI.

View Dr. Lloyd Marks' Expert Witness Profile.

Education/Work Highlights     

• Owner/Partner of a nephrology practice
• Stanford University educated
• I have been practicing nephrology for 12 years
• I care for over 250 dialysis patients
• I am a medical director of two dialysis facility highly related for patient safety and quality by Medicare
• I speak at national events about hemodialysis and nephrology
• I taught nephrology and internal medicine to medical residents

My background as an expert witness over the last five years are below:

• I have reviewed over 40 medical malpractice cases for both plaintiff and defense.
• I have performed 13 depositions.
• I have testified at trial three times.

Awards.

• Castle Connolly Top Nephrologist
• America’s Top Physician in Nephrology by Consumer Research Council of America and named one of the “Top 10 Nephrologist” by the American Registry.
• Fellow of the American Society of Nephrology (ASN).
• Selected to serve on the Practicing Nephrology Group, the Nephrology Diversity and Inclusion Work Group, and the American Society of Nephrology Workforce and Training Committee.

Ivy-Joan Madu, MD, JD, is a board-certified Endocrinologist who has been in private practice since 1995. Originally from Nigeria, Dr. Madu completed her medical education at the College of Medicine, University of Benin in Benin City, Nigeria in 1981.  She then completed residencies in Internal Medicine at the Lagos University Teaching Hospital in 1989 and The Methodist Hospital in Brooklyn, NY in 1992, followed by a third-year residency in internal medicine at the Albany Medical Center in Albany, NY in 1993. Dr. Madu then pursued and completed her Fellowship in endocrinology at the University of Southern California, Los Angeles in 1995. 

In addition to caring for patients, Dr. Madu currently serves as Adjunct Nursing Professor at California State University in Long Beach, and volunteers at the Lestonnac Free Clinic in Orange, CA.  She has received several awards for her work, including the Deans Prize for Best Clinical Student, the Professor Hill Memorial Prize for Best Student in Pathology MBBS Part III, and Distinctions in Physiology and Pathology from the College of Medicine at the University of Benin in Nigeria. 

Dr. Madu is certified as a diplomate in Endocrinology, Diabetes, and Metabolism from the American Board of Internal Medicine. She is a member of the Orange County Medical Association, the American Diabetes Association, and the American Association of Clinical Endocrinologists. 

Consulting Services:

Adrenal Disorders Diabetes Mellitus Deficiency / Supplementation Electrolyte Abnormalities Excessive Body Hair Growth Disorders

Hair Loss High Blood Pressure Hormone Imbalance Hypertension Lipid Disorders Low Testosterone

Menopaual Syndrome Metabolic Bone Disorders Nutritional Therapy Osteoporosis Parathyroid Disorders     Pituitary Disorders

Polycystic Ovarian Syndrome Reproductive Endocrinology Slow Metabolism Thyroid Disease and Cancer Turner Syndrome Weight Loss

View Dr. Madu's Expert Witness Profile.

Anthony C Chang, MD, MBA, MPH, MS is internationally recognized as an expert in the field of Pediatric Cardiology. He has a master’s degree in Healthcare Administration from University of Miami School of Business, from which he graduated with the McGaw Prize for academic excellence and a master's degree in Biomedical Data Science from Stanford University. Dr. Chang also has a master’s degree in Public Health from UCLA, from which he graduated with the Dean’s Award for academic excellence.

Dr. Chang leads pediatric heart teams all over the world. He was one of the founding members of the Asia-Pacific Pediatric Cardiac Society (APPCS) and will be initiating the foundation arm of the society at the bequest of the board. 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, he is a member the board of directors for the American Heart Association.

Providing leadership in education, Dr. Chang 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.

Doctor Chang - Being A Doctor

Dr. Chang is the founder of the Pediatric Cardiac Intensive Care Society (PCICS) that launched the multi-disciplinary focus on cardiac intensive care for children. He is also the founder of the Asia-Pacific Pediatric Cardiac Society (APPCS), which united pediatric cardiologists and cardiac surgeons from 24 Asian countries and launched a biennial meeting in Asia that now draws over 1,000 attendees. Dr. Chang has made over 50 medical missions around the world, including over 25 trips to China.

Dr. Chang is the founder and medical director of the Medical Intelligence and Innovation Institute (MI3), dedicated to implementing data science and artificial intelligence in medicine and is the first institute of its kind in a hospital. Dr. Chang is the organizing chair of several Artificial Intelligence in Medicine (AIMed) meetings in the U.S. and abroad that will focus on artificial intelligence in healthcare and medicine. He intends to build a clinician-computer scientist interface to enhance all aspects of data science and artificial intelligence in health and 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 publishes and lectures widely on topics of big data and artificial intelligence in medicine, pediatric cardiac intensive care, heart failure, sudden cardiac death, adult congenital heart disease, and other aspects of congenital heart disease. He has served as program director for numerous large international conferences and symposia.

View Dr. Chang's Expert Witness Profile.

Brent W. Sherwood, MD, is Board Certified in Family Medicine with a license to practice in Texas and Kansas. He also has a Bachelor of Science degree in Chemical Engineering with 15 years experience in the industry as an Engineer. Dr. Sherwood holds 4 United States Patents.

Education & Training

• Texas Tech University Health Sciences Center, Residency
• Texas Tech University Health Sciences Center School of Medicine, Texas Tech University Health Sciences Center School of Medicine, Medical School

Litigation Support - Dr. Sherwood provides expert witness services for cases involving Family Medicine. His services are available to attorneys representing plaintiff and defendant and include medical record review, thorough reporting, deposition, and trial testimony as needed.

Michael Blumenkrantz, MD, FACP, FACN, CNSP, has over 40 years of experience specializing in Internal Medicine and Nephrology. During the 1970s and 1980s, Dr. Blumenkrantz spent extensive research primarily in the fields of Dialysis and Clinical Nutrition. He is currently an internationally recognized expert in:

Internal Medicine Critical Care Dialysis

Kidney Disease Total Parenteral Nutrition Nutrition

Dr. Blumenkrantz has presented and defended innumerable papers at both national and international conferences, published extensively (80+ papers), and was invited as a visiting professor to a number of institutions in the United States and abroad, including Germany, Mexico, Prague, Italy, Argentina, and South Africa. He has served as a reviewer on the editorial boards of many journals such as the American Journal of Nephrology, the American Journal of Kidney Disease, Annals of Internal Medicine, and the American Journal of Clinical Nutrition to name a few.

Education: AB, Columbia College, NYC; MD, Albert Einstein College of Medicine, NYC; Internship & Residency, Hospital of University of PA; Fellowship, Wadsworth VA/UCLA.

View Michael Blumenkrantz's Expert Witness Profile.

Gerald W. Smetana, MD, Board Certified in Internal Medicine, is a General Internist with over 31 years of experience in an academic primary care practice at Beth Israel Deaconess Medical Center in Boston. He is also a Professor of Medicine at Harvard Medical School where he teaches internal medicine to medical house staff and also extensively to practicing clinicians in continuing medical education settings. Practicing in an outpatient setting, Dr. Smetana cares for a panel of patients that is weighted towards those with multiple chronic illnesses and high disease complexity. In addition to all aspects of office based general internal medicine, his areas of interest include Preoperative Medical Evaluation, Hypertension, and Headache. Dr. Smetana has been repeatedly selected as a Best Doctor in a national survey and has received a national award for scholarship in medical education. He publishes in the peer reviewed medical literature and medical texts, has edited textbooks, and has helped to develop national guidelines on topics in internal medicine. He has been invited to deliver seminars and presentations on various topics within his area of expertise nationally and internationally. Litigation Support - Dr. Smetana reviews cases for both plaintiffs and defendants, and has testified at deposition and trial as an expert more than 45 times. He has reviewed several hundred medical malpractice cases over the past 10 years both for plaintiffs and doctors. Dr. Smetana also consults for risk management insurers. His primary care, record review, and medicolegal consultation services are available throughout the United States.