Med-GRADE: Medical Grading and Rubric-based Assessment of Doctor-Patient Encounters

Yidong Jiang, Chao Ding, Renjie lu, Rongzhao Zhang, Yankai Jiang, Tianbin Li, Junzhi Ning, Chengze Li, Haoyu Zhang, Jinru Ding, Pengcheng Chen


Abstract
Large language model (LLM)-based judges are increasingly used to scale the evaluation and optimization of open-ended medical dialogue systems, making their reliability critical in this high-stakes setting. However, existing medical benchmarks mainly assess their medical knowledge, while general judge benchmarks lack clinically grounded consultation criteria. To address this gap, we introduce Med-GRADE, a benchmark for evaluating LLMs as medical dialogue judges. It contains 2,076 real-world patient–LLM dialogues annotated by 56 physicians with a 23-item rubric adapted from Mini-CEX, covering Medical Interviewing (MI), Humanistic Care (HC), and Diagnosis and Treatment Management (DTM). Experiments on 17 LLMs show that current LLM judges achieve only moderate agreement, with the best model reaching 64.89% Macro-F1 and 68.28% Hamming Accuracy. Besides, more complex prompts may even harm performance: CoT disrupts parsing, while few-shot and self-refine introduce item-level instability. Data and code are available at https://github.com/jyd777/Med-GRADE for reproducibility.
Anthology ID:
2026.emnlp-industry.220
Volume:
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing: Industry Track
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Pepa Atanasova, Gholamreza Haffari, Minghan Wang
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
3673–3694
Language:
URL:
https://aclanthology.org/2026.emnlp-industry.220/
DOI:
Bibkey:
Cite (ACL):
Yidong Jiang, Chao Ding, Renjie lu, Rongzhao Zhang, Yankai Jiang, Tianbin Li, Junzhi Ning, Chengze Li, Haoyu Zhang, Jinru Ding, and Pengcheng Chen. 2026. Med-GRADE: Medical Grading and Rubric-based Assessment of Doctor-Patient Encounters. In Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing: Industry Track, pages 3673–3694, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
Med-GRADE: Medical Grading and Rubric-based Assessment of Doctor-Patient Encounters (Jiang et al., EMNLP 2026)
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PDF:
https://aclanthology.org/2026.emnlp-industry.220.pdf