Voice-based simulated patient encounters

The first time you present a patient should not be in front of an attending.

MedListo is a simulated patient encounter, by voice, in real time. You present out loud. The attending interrupts and probes. Afterwards you get structured written feedback on exactly what you said. At 2am. In private. As many times as you need.

One free encounter. No account required.

You are being graded on a skill nobody teaches.

Oral presentation is one of the most assessed activities in medical school and one of the least explicitly taught. Students learn it by trial and error, mostly in public, mostly in front of the people writing their evaluations. The feedback that would fix it, frequent and specific narrative feedback, is the one thing nobody has time to give.

So practice where it is safe to be bad.

An attending in your pocket.

It interrupts.

Real attendings do not wait politely. Neither does this one. Present and get probed, the way rounds actually feel.

Feedback you can check.

Every score links to the exact words you said that produced it. Nothing is a black box.

It remembers what you are bad at.

Spaced repetition picks your next case from your weakest areas, not a random deck.

Rounds, boards, and interviews.

Bedside presentations, surgery rounds in ninety seconds, USMLE-style vignettes, and residency and fellowship interview prep.

English or Spanish.

Switch languages before the encounter starts.

It keeps your receipts.

Every encounter is scored and saved, so you can watch your trajectory instead of guessing at it.

Built on a method with receipts.

We did not invent virtual patient practice. We made it available on demand. Here is what the published literature says about the method:

Virtual patient tools improved clinical reasoning in 11 of 19 experimental studies.[7]

Plackett R, et al.. BMC Med Educ 2022.

Generative-AI virtual patients beat control conditions in every controlled comparison in a 2026 review of 15 studies.[8]

Jiang J, et al.. J Med Internet Res 2026.

In a 2026 pilot, AI-generated feedback covered the case's key learning points in 20 of 20 instances on history and physical, against 39 of 60 for faculty feedback. Four students, five cases, so treat it as a signal, not proof.[9]

Fruitman H, et al.. Neurol Educ 2026.

When a Korean medical school built a voice-based AI patient for licensure prep, 97.7 percent of eligible students used it voluntarily. Nobody made them.[11]

Song JW, et al.. NPJ Digit Med 2026.

None of these studies is about MedListo. Ours has not been run yet, and we say so below. That is the difference between evidence and marketing.

For clerkship directors and simulation programs.

Every rating carries the verbatim transcript segment that produced it, so a judgment can be checked against its source. MedListo rates observed readiness against the AAMC Core EPAs and produces the structured evidence an entrustment decision draws on. The decision itself belongs to a supervising physician. It stays there.[4][5] On the R2C2 model, the platform automates the content phase of feedback; the relationship and coaching phases stay with faculty.[6]

The closest published system, CPX-MATE at Yonsei, established that a voice-based virtual patient with automated evaluation can agree with expert raters at a Gwet’s AC1 of 0.916, at 12 to 78 cents a session.[10] What it did not examine is whether the instrument functions equivalently across learners. That question, measurement invariance with a pre-registered subgroup analysis, is the study we are looking for an academic partner to run.

If you run a clerkship or a simulation program, we would rather agree on what to measure before a pilot starts than report usage numbers afterwards.

Start the conversation

EPA 6: Provide an Oral Presentation of a Clinical Encounter

  • Present personally gathered and verified information, acknowledging areas of uncertainty
  • Provide an accurate, concise, well-organized oral presentation
  • Adjust the oral presentation to meet the needs of the receiver
  • Demonstrate respect for patient's privacy and autonomy

AAMC, Core Entrustable Professional Activities for Entering Residency

What we do not claim

Stated plainly, because you would find these limits anyway and they bear on how the tool should be used.

  • That this tool has been shown superior to question-bank study. No head-to-head trial exists.
  • That a single AI-generated competency score is a validated psychometric instrument.
  • That the platform makes entrustment decisions. It rates observed readiness and produces structured evidence; the decision belongs to a supervising physician.
  • That the instrument has been shown to function equivalently across learner groups. That study has not been run. Running it is the point of the partnership we are seeking.
  • That this replaces standardized patients, direct observation, or faculty assessment.

Scores are formative. Single encounters should inform coaching conversations, not grades. Aggregated across a rotation, the same data is more defensible than any one encounter.

References

  1. Cooper D, Holmboe ES. Competency-Based Medical Education at the Front Lines of Patient Care. N Engl J Med 2025;393(4):376-388. PMID 40700689. doi:10.1056/NEJMra2411880.
  2. Gonzalez F, et al.. Differences in language used to describe racial groups in emergency medicine standardized letter of evaluation. AEM Educ Train 2025;9(3):e70054. PMID 40395228.
  3. Omar M, et al.. Evaluating and addressing demographic disparities in medical large language models: a systematic review. Int J Equity Health 2025;24(1):57. PMID 40011901.
  4. Violato C, Englander R, Dale E, et al.. Implementing Core Entrustable Professional Activities in Undergraduate Medical Education: A Psychometric Study. Acad Med 2025;100(5):585-591. PMID 39485120.
  5. ten Cate O, Chen HC. The ingredients of a rich entrustment decision. Med Teach 2020;42(12):1413-1420. PMID 33016803.
  6. Lockyer J, et al.. Application of the R2C2 Model to In-the-Moment Feedback and Coaching. Acad Med 2023;98(9):1062-1068. PMID 37797303.
  7. Plackett R, et al.. The effectiveness of using virtual patient educational tools to improve medical students' clinical reasoning skills: a systematic review. BMC Med Educ 2022;22(1):365. PMID 35550085.
  8. Jiang J, et al.. GenAI-Supported Virtual Patients in Health Care Education: Systematic Review. J Med Internet Res 2026;28:e82756. PMID 42098926. doi:10.2196/82756.
  9. Fruitman H, et al.. Education Research: Quality of Narrative Feedback Generated by a Large Language Model Compared With Expert Faculty for Case-Based Learning in Neurology Education. Neurol Educ 2026;5(2):e200320. PMID 42222237.
  10. Song JW, et al.. Development and Validation of CPX-MATE: An End-to-End Medical Education Platform Integrating Voice-Based Virtual Patient Simulation and Automated Real-time Evaluation. medRxiv preprint (not peer reviewed) 2026;2026.02.21.26346803. doi:10.64898/2026.02.21.26346803.
  11. Song JW, et al.. Naturalistic adoption and deliberate practice use of an AI-based OSCE platform during national licensure preparation. NPJ Digit Med 2026;in press. PMID 42458025. doi:10.1038/s41746-026-03024-3.
  12. Vicente L, Matute H. Humans inherit artificial intelligence biases. Sci Rep 2023;13(1):15737. PMID 37789032.