The deposition: fact witness rules and the fee you may charge

Fact witness or expert witness — which are you?

When you are deposed about a client you treated, you are almost always a fact witness — sometimes called a percipient or treating witness — not a retained expert. The distinction defines the whole day. A fact witness testifies to what they personally observed, documented, and did: your assessments, your notes, the care you provided. An expert is separately hired to review a case and offer opinions, often for a negotiated fee.

These two witness roles carry different duties, different fees, and different exposure, so the first thing to determine from the notice is which one it is really seeking. A treating clinician did not sign up to render expert opinions, and being pulled toward opinion testimony is one of the day's real risks — one worth spotting before you walk into the room.

Before you disclose anything, confirm you are allowed to

Before you produce a record or answer a single question about protected health information, confirm you actually have the authority to disclose it. A subpoena is not automatically a court order: HIPAA lets you respond to a court order by disclosing only what the order authorizes, but a subpoena without a court order requires satisfactory assurances — notice to the client or a qualified protective order — before you disclose 1Ref 1HHS Office for Civil Rights (2026).Court Orders and Subpoenas.That HIPAA lets a covered entity disclose only what a court order authorizes, and requires satisfactory assurances (notice or a protective order) before disclosing under a subpoena without a court order — used for the confirm-your-authority sequencing before testifying.. Absent those, you generally need the client's valid authorization.

Even with authority, the privacy rule's minimum-necessary principle still governs what you reveal 2Ref 2HHS Office for Civil Rights (2026).Summary of the HIPAA Privacy Rule.That the Privacy Rule governs PHI disclosure and applies the minimum-necessary standard — used to limit what a deposed clinician reveals to what the legal basis actually reaches.. Do not volunteer the whole chart because a lawyer asked broadly. Confirm the legal basis first, then disclose only what that basis actually reaches — and when the basis is unclear, that is the moment to get guidance rather than guess your way through it.

Psychotherapy notes get separate treatment

Psychotherapy notes are a special category, and a deposition is not license to hand them over reflexively. Kept separate from the rest of the record, they are excluded from the ordinary HIPAA right of access and generally require specific authorization or a court order distinct from a routine records request 3Ref 3HHS Office for Civil Rights (2026).Individuals' Right under HIPAA to Access their Health Information.That psychotherapy notes are excluded from the ordinary HIPAA right of access — used to explain why process notes require separate authorization before disclosure in a deposition.. If you keep true psychotherapy notes, flag them the moment a subpoena or deposition notice arrives.

Treat them as a separate disclosure question with its own legal basis. Do not fold them into a general production of the chart, and do not assume a subpoena that reaches the medical record also reaches the process notes. When a request seems to sweep them in, that ambiguity is a reason to pause and confirm the authority before anything leaves your hands.

How to prepare: reread the record, not the case

Preparation for a fact-witness deposition means rereading your record, not relitigating the case. Go through the entire chart so your testimony matches what you documented, and note honestly where your memory and the record diverge or where you simply do not recall. Bring only what you are lawfully compelled and authorized to bring. Your job is to be accurate about your own care, not to reconstruct events you never charted.

• Reread the full record before the date; testify from it, not from memory alone.
• Do not create or 'clean up' notes now — the same rule against any post-hoc edit applies.
• Know the boundary of your role so you can decline to opine as if you were an expert.
• Coordinate in advance with the client's counsel or your own about logistics and scope.

Walking in prepared is what keeps a routine deposition routine.

How to answer: to the record, not beyond it

In the room, answer only the question asked, and answer it to the record. Short, accurate, non-volunteering answers serve you best: 'I don't recall' is a complete and honest answer when it is true, and there is no obligation to fill silence. Do not speculate, do not guess at another provider's reasoning, and do not drift into opinions you were not retained to give.

Stay inside your lane as the treating clinician. If questioning pushes you toward expert conclusions — prognosis for the litigation, standard-of-care judgments about others — you can note that those exceed your role as a fact witness. The transcript is sworn testimony that can be read back later, so precision and restraint matter far more than being helpful, agreeable, or persuasive to whoever is asking.

The fee you may — and may not — charge

Whether you can charge for your time depends on which witness you are, and clarifying it beforehand prevents a fight afterward. As a general convention, a treating clinician compelled purely as a fact witness may be entitled only to the ordinary statutory witness fee set by the court's civil-procedure rules — modest, and fixed by the jurisdiction rather than by you. The specifics live in your court's rules, not in a national rate card.

When questioning crosses into genuine expert opinion, a separately negotiated professional fee more commonly applies, because that is expert work you never agreed to provide for free. Sort this out in writing before the deposition: confirm your role, ask retaining counsel about the applicable fee rule, and put any agreed rate for opinion time in a short letter. Do not show up having assumed an expert rate you never actually confirmed.

When to bring in your own lawyer

Some depositions call for your own lawyer, separate from the parties' attorneys. Get counsel when you are a named defendant, when the notice clearly seeks opinion testimony, when a subpoena looks improper or over-broad, or when the disclosure questions around protected health information are genuinely unclear. A brief consultation can prevent an unauthorized disclosure or an accidental slide into expert testimony you were never retained to give.

Tell your malpractice carrier as well. Even a fact-witness deposition can touch on your own liability, and carriers track these matters on the carrier's longer clock for records and coverage. Keeping liability fear separate from liability fact — most treating-witness depositions are routine, not accusations — helps you prepare calmly. The subpoena that put you here is a procedural instrument, and answered carefully, it usually stays one.