Dr. James Whitfield, MD
Addiction Medicine Specialist
Board-certified addiction medicine physician bringing clinical rigor to substance use assessment and harm-reduction tools.
Dr. James Whitfield is a board-certified addiction medicine physician at Yale New Haven Health System, where he manages a clinical caseload spanning alcohol use disorder, opioid dependence, and nicotine cessation. With sixteen years of practice since completing his addiction medicine fellowship at Boston Medical Center, he has built a reputation for translating pharmacokinetic evidence into practical clinical protocols, the same precision he applies when authoring and reviewing quantitative tools for OnlyCalculators.
At the APT Foundation, one of Connecticut's largest community-based addiction treatment programs, Dr. Whitfield oversees medical protocols for outpatient opioid treatment and leads quality-improvement initiatives tied to AUDIT-C screening and CIWA-Ar withdrawal monitoring. His day-to-day work requires accurate, bedside-ready calculations: estimating alcohol elimination timelines for medically supervised detox, computing nicotine replacement dosing, and counseling patients on caffeine's physiological effects during early sobriety. That operational reliance on numerical precision directly informs the OnlyCalculators tools he maintains in the addiction medicine, alcohol metrics, and caffeine categories.
Dr. Whitfield's peer-reviewed contributions have appeared in the Journal of Addiction Medicine and Substance Abuse, with a particular focus on risk-stratification models for outpatient detoxification eligibility. He is a Fellow of the American Society of Addiction Medicine and contributes to ASAM's national clinical practice guideline committee. When he reviews a calculator on OnlyCalculators, he cross-references the underlying formulas against current ASAM, NIAAA, and FDA guidance, ensuring that every input range, unit convention, and output interpretation reflects what clinicians and informed patients actually encounter.
“Every calculator Dr. Whitfield publishes is validated against primary clinical guidelines and stress-tested at boundary inputs before it goes live, because a number presented without context can do as much harm as a missing one.”