Key takeaways
- Record review typically runs $400-$750/hour; deposition and trial time bill higher, often at a half- or full-day minimum.
- Most experts take a retainer against which hourly work is drawn.
- Specialty scarcity, case complexity, and travel drive cost more than anything else.
Typical physician expert rates
Physician expert witnesses in 2026 typically charge $400–$800 per hour for record review and written opinions. Deposition testimony runs $500–$900 per hour, frequently with a half-day minimum. Trial testimony is commonly billed as a daily rate between $5,000 and $10,000 plus travel.
Rates track specialty scarcity. High-demand, low-supply specialties, neurosurgery, pediatric subspecialties, maternal-fetal medicine, command the top of the range and above. Primary-care specialties sit toward the lower end.
Retainers and engagement structure
Most experts require an initial retainer, commonly $1,500 to $5,000, applied against hourly work, with billing beyond the retainer invoiced monthly. Flat-fee arrangements are increasingly common for defined tasks like certificate-of-merit reviews or high-volume screening.
On Retain, every expert publishes a transparent fee schedule (record review, deposition, trial, travel, retainer) before you engage, no negotiation surprises after disclosure deadlines.
What drives cost up, and down
Record volume is the biggest variable: a 200-page chart reviews in hours; a 20,000-page hospitalization does not. Rush timelines add premiums. Conversely, focused questions, organized records, and early engagement all reduce total spend. Budget the expert as a percentage of case value early, under-investing in the expert is the most expensive savings in litigation.
About the author

Sales and Marketing Leader, Retain
Michael has spent more than 25 years leading sales and marketing teams in pharmaceuticals, medical devices, and healthcare diagnostics, including 10 product launches and P&L responsibility up to $150M. He writes about how attorneys and physicians actually work together on expert engagements.
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