Healthcare (General) Expert Witnesses: 21

• Neurological Injuries (Brain and Spinal Cord Injury)
• Burns
• Orthopedic Injures
• Amputation
• Chronic Pain
• Post Traumatic Stress Disorder

• Expert Testimony
• Life Care Planning
• Mini/Preliminary Life Care Plan
• Video Services
• Medical Record Review
• RN Independent Medical Exam
• Medicare Set Aside Trust Analysis
• Medical Bill Auditing
• Questions: Deposition Cross Examining

John M. Schuberth, DPM, has extensive experience in Complex Foot and Ankle Surgery. Throughout his 40 year career, he has performed over 25,000 surgical cases and over 1,500 ankle replacements. He has published extensively on a wide variety of subject involving foot and ankle surgery (128 publications) and lectured all over the world on Foot and Ankle surgery. Please refer to his most recent CV for details. 

Litigation Support - Dr. Schuberth provides expert witness services to attorneys representing plaintiff and defense. His services include medical record review, thorough reporting, depositions, and trial testimony as needed. He has been deposed/testified over 20 times since 2020.

Areas of Expertise:

Associations:

• Editor in Chief for the Journal of Foot and Surgery for 7 years and Editor in Chief of Foot and Ankle Specialist for 6 years
• Former Chair of Board- American Academy of Foot and Ankle Osteosynthesis
• Former Course Chair-AO Podiatric Course  
• Past President, American College of Foot and Ankle Surgeons 1998-1999
• Board of Directors, ACFAS, 1992-2000
• Past Chair; Outcomes Research Committee, ACFAS
• Past Chair; Clinical Research; Research Fellowships, ACFAS        
• Past Chair, Preferred Practice Guidelines; Hallux Valgus
• Past Chair, Preferred Practice Guidelines; Ankle Sprain, Instability
• Former Member Ankle/Reconstructive Rearfoot Surgery Exam Committee
• American  Board Podiatric Surgery    1992-1996
• Former Chair, ABPS Ankle / Rearfoot Reconstructive Surgery. Exam Committee, 1996-2000
• Clinical Associate Professor, Department of Surgery, California College of Podiatric Medicine 1985-2003
• Licensing Commissioner, State of California 1986-1998
• Chief Examination Advisor, Board of Medical Quality Assurance 1986-1993
• Associate Faculty, San Francisco Orthopedic Residency Program
• Former Chair, Foot and Ankle Subgroup, National Product Comm-Kaiser
• Former Chair, Local Product Committee, Kaiser San Francisco
• Former Chair, Education Committee-American Academy Foot Ankle Osteosynthesis, 2013-2019
• Nine time awardee of Attending of the Year from several residency programs
• Board Certified American Board of Foot and Ankle Surgery (1985, Current)

David A.Sugar, MD, is a Board Certified Orthopaedic Surgeon. He has been in practice since 1997. Working as a general Orthopaedic Surgeon, he has treated an extremely wide array of Orthopaedic conditions and injuries.

Dr. Sugar has served as the Managing Partner in a group as large as 11 doctors and worked on the Surgical QI Committee ( currently serves as the Chairman) at the 35th largest hospital in the United States. Dr. Sugar is currently the principal surgeon at Sugar Orthopaedics where they provide surgical and non-surgical treatments for muscular and skeletal problems of all types.

Litigation Support - Dr Sugar has offered expert witness services for attorneys representing plaintiff and defendant for 20 years. His services include independent medical evaluations (IMEs), medical record review, thorough reporting, depositions, and trial testimony. Dr. Sugar's cases have a heavy emphasis on Fractures, Knee, Shoulder, Sports Medicine, and Pediatric Orthopaedics.

Areas of Expertise:

Continental Who’s Who 

Executive Press Release

WILLEAM A. CHOBY, DMD - DENTIST. FOUNDER

Greensburg, PA - Prominently featured in Continental Who's Who, Willeam A. Choby, DMD is acknowledged as 2025 Dentist of the Year for his contributions to Dentistry.

Dr. Willeam A. Choby,  a renowned dental professional in implant dental surgery and reconstruction of the teeth continues to make significant strides in the field of dentistry. With a career dedicated to advancing oral health, Dr. Choby is integrating his extensive clinical expertise with innovative public health principles to improve patient outcomes and community well-being.

Dr. Choby received his Bachelor’s degree and Dental Medicine Doctor (DMD) from the University of Pittsburgh, followed by General Practice residency and appointment as Chief Dental Resident at Brookdale Hospital Medical Center in Brooklyn New York. He also earned a continuing education degree of Masters of the Academy of General Dentistry (MAGD) Complementing his dental credentials, he holds a Master of Public Administration (MPA), which enhances his ability to address oral health challenges through a public health lens. His master’s thesis “Licensure and the Dental Market” from Virginia Tech continues to stimulate the dialogue in the various state boards of dentistry.

Dr. Choby is an active member of the International Congress of Oral Implantologists (ICOI) where he earned a Diplomate degree (DICOI) and a Fellow in the International College of Cranio-Mandibular Orthopedics (FICCMO).

Dr. Choby is frequently called upon to provide his expertise on public health matters, second opinions,  peer review and malpractice questions.  He has testified in court over a dozen times and has participated in dozens of sworn depositions. 

A skilled clinician with a particular focus on dental implants and neuro muscular dental bite relations, Dr. Choby emphasizes a collaborative approach in his practice. "Teamwork between the dentist, patients, and their financial abilities along with other health professionals is essential for achieving optimal care," he explains. His patient-centered philosophy reflects his dedication to fostering trust and communication, ensuring each treatment plan is tailored to individual needs

View Dr. Choby's Consulting Profile.

We provide comprehensive services in healthcare damage valuation, including life care planning, rebuttals to life care plans, expert witness testimony related to standards of care, and medico-legal consulting. These services are delivered by an experienced Autonomous-Practice Advanced Practice Registered Nurse Practitioner and Certified Life Care Planner. Available to both Plaintiff & Defense firms.

Life Care Planning - Life Care Plan Rebuttals - Litigation Support - Expert Witness Services

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.