Family Medicine​/Primary Care Physician; San Francisco

Mercor is hiring
Family Medicine / Primary Care Physicians (PCPs)on behalf of a healthcare AI partner building advanced clinical decision‑support tools. In this role, you will leverage your clinical expertise to
review, annotate, and validate medical data
, contributing directly to the development of
safe, accurate, and explainable medical AI systems
. This is an in person position based in San Francisco

This position combines your knowledge of
primary care, diagnosis, and treatment
with the emerging field of
clinical data curation and AI model training
— helping bridge the gap between frontline medicine and artificial intelligence.

• Clinical Data Annotation: Review and label clinical text, EHR data, and case notes for use in AI model training. Identify and validate medical entities, diagnoses, treatment pathways, and outcomes relevant to family medicine.
• Quality Review & Validation: Audit annotated datasets for clinical accuracy and consistency. Cross‑check outputs generated by AI models to ensure medical soundness.
• Knowledge Contribution: Provide expert input on guidelines for annotation, taxonomy development, and edge case definitions. Collaborate with data scientists and engineers to improve AI understanding of medical context.
• Model Evaluation & Feedback: Evaluate AI‑generated recommendations or clinical summaries, flag inaccuracies, and provide structured feedback for iterative model refinement.
• Documentation & Training Support: Contribute to the creation of clinical documentation standards and assist in developing onboarding materials for new annotators.

• MD or DO degree with specialization in
  Family Medicine
  or
  Internal Medicine
  .
• Board-certified or board‑eligible
  in Family Medicine or Internal Medicine.
• Active
  medical license
  in good standing.
• Academic hospital experience preferred.
• 2+ years of clinical experience
  in outpatient or primary care settings.
• Strong understanding of
  preventive, acute, and chronic disease management.
• Familiarity with
  EHR systems, clinical documentation
  , and standard terminologies (ICD-10, CPT, SNOMED).
• Excellent attention to detail and ability to interpret nuanced medical language.
• Interest or prior exposure to
  medical AI, data annotation, or health informatics
  preferred.

• In person (SF), part‑time role (up to
  10 hours per week
  ).
• Flexible schedule — ideal for practicing clinicians seeking to contribute to next‑generation healthcare technology.
• Ongoing opportunities for
  professional growth
  in applied medical AI and data science collaboration.

• Shape the future of
  AI‑assisted primary care
  by ensuring that medical models reflect real‑world clinical expertise.
• Collaborate with cross‑functional teams dedicated to
  accuracy, ethics, and patient safety
  .
• Gain exposure to
  AI‑driven healthcare innovation
  while maintaining flexibility and clinical involvement.
• Be part of a mission to make
  accessible, evidence‑based, and intelligent healthcare
  a global reality.

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.