Jonathan Polak

Board-certified internal medicine physician providing comprehensive, patient centered care in a direct primary care model Special focus on evidence-based obesity/weight loss medicine Actively pursuing continuing education in artificial intelligence in medicine, with a focus on leveraging AI tools to enhance clinical decision-making and improve workflow efficiency.

Primary Care, Obesity Medicine - Winding Brook Direct Primary Care

(2025-09)

• Board-certified internal medicine physician providing comprehensive, patient centered care in a direct primary care model
• Special focus on evidence-based obesity/weight loss medicine
• Actively pursuing continuing education in artificial intelligence in medicine, with a focus on leveraging AI tools to enhance clinical decision-making and improve workflow efficiency.

Medical Director - Wolfeboro Bay Center

(2025-09)

• Provide medical oversight for a skilled nursing facility for a complex geriatric population
• Lead and collaborate with interdisciplinary teams (nursing, therapy, social work, administration)
• Develop, implement, and monitor clinical protocols and quality improvement initiatives to enhance patient safety and regulatory compliance
• Participate in and lead quality assurance and performance improvement (QAPI) programs

AI prompt engineer, data annotation - Mercor

(2025-07)

• Designed & optimized prompt engineering strategies for AI language models
• Developed, tested, and refined prompts to guide LLMs in reasoning, summarization, classification, and multi-step decision-making.
• Collaborated with cross-functional teams to align prompts with client goals, improve model outputs, and ensure responsible AI usage.
• Conducted qualitative and quantitative evaluations to improve prompt performance, accuracy, and alignment.

AI prompt engineer, data annotation - Medcase

(2025-08)

• Designed & optimized prompt engineering strategies for AI language models
• Tested / troubleshooting new AI technologies.

AI prompt engineer, data annotation - Handshake AI

(2025-08)

• Designed & optimized prompt engineering strategies for AI language models.
• Promoted to a supervisory role evaluating the prompts created by other physicians & professionals.

AI prompt engineer, data annotation - Micro1

(2026-03)

• Designed & optimized prompt engineering strategies for AI language models.

Primary Care, Obesity Medicine - Optum - Santa Clarita, CA

(2024-04 - 2025-08)

• Primary care / internal medicine physician
• CME talks on Obesity Medicine
• Preparing CME talk on artificial intelligence in medicine

Primary care, Obesity Medicine - Huggins Hospital - Wolfeboro, NH

(2021-01 - 2024-03)

• In addition to primary care & obesity medicine, was on committee to develop policy for use of AI in clinical practice.
• CME talk on Obesity Medicine

Physician - Signify Health - NH

(2020-10 - 2021-01)

• Performed health risk & chronic disease assessments at patient's homes, per diem

Primary care - Lakes Region General Hospital - Laconia, NH

(2019-03 - 2020-04)

• Primary care
• Meredith Bay Colony Club, an assisted living facility
• The Hospital/clinic went bankrupt during COVID and closed (later to be eventually bought out, reopened).

Masters - Engineering in Artificial Intelligence - Johns Hopkins University (2023-08)

Fellowship - Infectious Diseases - East Carolina University (2018-07 - 2018-12)

Residency - Internal Medicine - East Carolina University (2015-07 - 2018-06)

MD - Medicine - St. George's University School of Medicine (2011-01 - 2015-05)