Professional Malpractice (General) Expert Witnesses: 124

Marilyn McCullum, BSN, RN, CEN, is a certified Emergency Nurse with peer-reviewed publications, speaking engagements, and testifying experience. She specializes in emergency nursing, general nursing care, medical documentation bias, and medical products as an end-user. She stays active in her clinical position and teaches her peers about documentation and triage.

Ms. McCullum's expert opinions are unbiased, neutral, and fact-based, following the national Standard of Care.

Dr. Ariel F. Grajales-Cruz, triple board-certified in Internal Medicine, Hematology, and Medical Oncology, specializes in multiple myeloma and advanced immunotherapies. An Assistant Member at Moffitt Cancer Center and USF faculty, he offers expert witness testimony, malpractice review, and litigation support. Author of 20+ publications, he lectures worldwide and is fluent in English, Spanish, and French.

Expertise in Myeloma, CAR-T, Immunotherapy & Malpractice Cases.

Jon-Eric Kronvall has over 35 years of experience in the Financial Services profession. He is the Founder of Esoteric Advisors, an expert consulting firm that specializes in unique and specialized areas of knowledge in financial services. Mr. Kronvall is also the Founder and Chief Compliance Officer at Wealth Innovation, a Registered Investment Advisory Firm.

Expertise: Expert Witness, Trusts, Estates, Fiduciary, Securities, Investments, Banking, Lending, Real Estate

Fred Beck, DC, with over 45 years in practice, performs Chiropractic Medical Malpractice Reviews, Expert Witness, IME's (1500+), Peer Reviews (7500+). Dr. Beck allows videotaping and observers in room if requested by patient / claimant. Zero IME's and Peer Reviews have gone to deposition or court. Licensed in New York & Florida. Past Public Relations Director of Broward County Chiropractic Society. Chiropractor of the Year (Broward County). Writer, lecturer, ringside physician, Pharm patent etc.