Professional Expert Witness Team
Seeking an expert witness that specializes in Infectious Disease, Pulmonary Medicine, or Internal Medicine?

Praxis Infectious Disease is comprised of a team of board-certified infectious disease physicians who provide targeted, timely telehealth patient consultations, and critical support for Infectious Disease Prevention and Antimicrobial Stewardship Programs.

Praxis ID specialists bring the most up-to-date, expert knowledge that is immediately applicable to help support facilities that cannot accommodate full time Infectious Diseases staff. They provide protocols, procedures, and patient management so rural hospitals may benefit from the support of their own Infectious Diseases doctor. With more than 5 years of focused remote support for critical access hospitals, Praxis ID providers have over 20,000 unique patient visits, are certified in Antimicrobial stewardship and infection prevention, and have a proven track record of improving quality of care. 

Litigation Support - A broad spectrum of clinical, theoretical, and organizational experience in Infectious Diseases make Praxis ID a trusted asset for your case. Providing medical case review, thorough reporting, depositions, and trial testimony for both plaintiff and defense.

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Who We Are

Dr. Asfour and his team has worked extensively in adult infectious diseases for the past 20 years. He has had more than 35,000 direct patient encounters. He also has experience in reviewing cases for both the plaintiff and defense.

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Ramzi Asfour, MD

Board Certified in Infectious Diseases and Internal Medicine

Dr. Asfour is board certified in Infectious Diseases and Internal Medicine. In addition to his work in the US seeing patients, he has worked for the World Health Organization. He is also Assistant Clinical Professor of Medicine at UCSF. He is generally available on short notice and is an efficient worker with a short turn-around time for legal case review. He has extensive experience in treating patients and advising hospitals and skilled nursing facilities in Infection Control (Including outbreak management / COVID-19) and Antimicrobial Stewardship.

Meet The Team

Christina T Hopson, DO

Board Certified Infectious Disease Specialist

Dr. Christina T Hopson, DO, is an Infectious Disease specialist in Livermore, California. She attended and graduated from New York College Of Osteo Medicine Of New York Institute Of Technology in 1994, having over 27 years of diverse experience, especially in Infectious Disease.

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David Joel Witt , MD

Board Certified in Infectious Diseases, Clinical Genetics, and Pediatrics

Dr. Witt graduated from the University of Michigan Medical School in 1979. Dr. Witt works in San Rafael, CA and 2 other locations and specializes in Infectious Disease and Internal Medicine. Dr. Witt is affiliated with Kaiser Permanente Santa Clara Medical Center and Kaiser Permanente Medical Center San Rafael.

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John Lucian Davis, MD

Board Certified in Pulmonary Disease and Internal Medicine

Dr. John Lucian Davis, MD specializes in pulmonary disease in New Haven, CT and has over 21 years of experience in the field of medicine. He graduated from Vanderbilt University School Of Medicine with his medical degree in 2000. He is affiliated with numerous hospitals in Connecticut and more, including Yale-new Haven Hospital. Dr. John Lucian Davis is licensed to practice by the state board in Connecticut (53935).

Dost Sarpel, MD

Board Certified in Pulmonary Disease and Internal Medicine

Dr. Dost Sarpel completed his Internal Medicine Residency and Infectious Disease Fellowship at the George Washington University Hospital in Washington D.C.  

 

After finishing his fellowship, Dr. Sarpel worked as consultant for many hospitals throughout the East Bay area in California. During this time he was a key part in managing Infection Control and Antibiotic Stewardship programs at numerous hospitals and long term care facilities.  

 

He then made the decision to pursue additional training because of his strong interest in viral hepatitis.  He completed a Viral Hepatology Fellowship under the mentorship of Dr. Douglas Dieterich, a world renowned hepatologist, at the Icahn School of Medicine at Mount Sinai.  

 

Dr. Sarpel has noted expertise in treating patients with HIV, chronic hepatitis C, or chronic hepatitis B as well as patients with co-infection of these viruses, and has given many lectures on these topics.  

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