In this episode of The Hat Rack, host Dr. Bill McCauley is joined by Dr. Kris Lehnhardt, emergency physician, educator, and Director of Space Medicine at UTHealth Houston. Continuing the series exploring physicians who have built careers that extend beyond traditional clinical practice, Dr. Lehnhardt shares his remarkable journey from emergency medicine residency at Western University to becoming a leader in one of medicine's most unique and rapidly evolving fields.

Dr. Lehnhardt reflects on a lifelong fascination with space that began in childhood and ultimately led him through aerospace medicine, extreme environmental medicine, academic leadership, and seven years working with NASA. Along the way, he discusses the challenges of pursuing a career path that had no clear roadmap, the importance of mentorship, and the role that curiosity, persistence, and calculated risk-taking played in shaping his professional journey.

The discussion highlights the value of following a direction rather than a predetermined destination, emphasizing how meaningful opportunities often emerge through networking, adaptability, and a willingness to embrace uncertainty. Dr. Lenhart also offers candid insights into building expertise in a highly specialized field, overcoming skepticism, maintaining a clinical emergency medicine practice, and helping prepare the future of human spaceflight through research, education, and innovation.

UTHealth Houston Space Medicine Program
A multidisciplinary program focused on education, research, and innovation in space medicine, preparing healthcare professionals and researchers to support the future of human space exploration.

Website: https://med.uth.edu/emergencymedicine/divisions/space-medicine/

NASA Human Research Program
NASA's research enterprise dedicated to understanding and mitigating the risks associated with human spaceflight, supporting missions ranging from low Earth orbit to future exploration of the Moon and Mars.

Website: https://www.nasa.gov/hrp/

International Space University (ISU)
An international educational institution that brings together students and professionals from around the world to study all aspects of space exploration, science, engineering, policy, and human spaceflight.

Website: https://www.isunet.edu/

Aerospace Medical Association (AsMA)
The world's leading professional organization dedicated to aerospace medicine and human performance in aviation and space environments.

Website: https://www.asma.org/

Canadian Space Agency Astronaut Program
Information about Canadian astronauts, astronaut recruitment, training, and Canada's role in human spaceflight.

Website: https://www.asc-csa.gc.ca/eng/astronauts/

Listen to The Hat Rack podcast, where physicians gain access to the strategies and insights that CPD experts use to plan, deliver, and measure meaningful continuing education. Guests draw from extensive local, national, and international experience, providing practical takeaways for physicians and educators alike.

Hosted by Dr. Bill McCauley, CPD Associate Dean at the Schulich School of Medicine & Dentistry, Western University in London, Ontario, Canada.

📧 Questions, Comments, & Suggestions: thehatrack@uwo.ca

Season 03 - Episode 05

In this episode of The Hat Rack, host Dr. Bill McCauley is joined by Dr. Andrew Park, emergency physician, healthcare executive, and past president of the Ontario Medical Association. This conversation marks the first in a new series exploring physicians who have built careers that extend beyond traditional clinical practice.

Dr. Park shares his unconventional journey—from early clinical work in a high-acuity emergency department in British Columbia to stepping into leadership roles he never initially sought. Along the way, he reflects on pivotal moments that shaped his path, including mentorship, failure, burnout, and the challenges of transitioning between clinical and administrative roles.

The discussion highlights what leadership really means in medicine, emphasizing that it is not defined by titles but by a skill set that must be developed over time. Dr. Park also offers candid insights into the realities of leading at scale, including his experience representing thousands of physicians across Ontario and navigating the complexity of advocacy, competing priorities, and system-level change.

Referenced Resources:

Ontario Medical Association (OMA)
The professional association representing physicians across Ontario, responsible for advocacy, negotiation, and policy work on behalf of its members.

Ivey Business School Executive MBA Program
A leadership-focused MBA designed for working professionals, allowing participants to continue clinical or professional work while developing management and organizational leadership skills.

UBC Master of Education in Adult Learning and Global Change
A fully online Master of Education program focused on adult learning, leadership, and global change, delivered in partnership with international universities.

OMA Physician Leadership Program
A leadership development program that supports physicians in building skills in communication, advocacy, and system-level leadership.

Find Something to Hang Your Hat On!

Listen to The Hat Rack podcast, where physicians gain access to the strategies and insights that CPD experts use to plan, deliver, and measure meaningful continuing education. Guests draw from extensive local, national, and international experience, providing practical takeaways for physicians and educators alike.

Hosted by Dr. Bill McCauley, CPD Associate Dean at the Schulich School of Medicine & Dentistry, Western University in London, Ontario, Canada.

📧 Questions, Comments, & Suggestions: thehatrack@uwo.ca

Season 03 - Episode 04

In this episode of The Hat Rack, host Dr. Bill McCauley is joined by Dr. Amrit Kripalani, pediatric nephrologist at London Health Sciences Centre and medical education researcher, and Dr. Frank Myslik, Senior Medical Information Officer at London Health Sciences Centre. Together they speak on the rapidly evolving role of artificial intelligence in medicine and discuss what it means for physicians, learners, and patients.

The conversation explores how tools such as ChatGPT, Gemini, and emerging clinical AI platforms are already shaping clinical practice and education. From AI-powered clinical scribes that reduce documentation burden to decision-support tools that help clinicians quickly access evidence, the guests discuss how AI may allow physicians to spend less time at the keyboard and more time connecting with patients.

At the same time, the discussion highlights important challenges—including privacy concerns, bias in training data, and the growing number of patients using AI to look up health information. Dr. Kripalani and Dr. Myslik reflect on how medical education and clinical practice must adapt, emphasizing critical appraisal skills, open conversations with patients about AI-generated information, and the evolving role of physicians as trusted interpreters in an AI-enabled healthcare environment.

Referenced Resources:

HEAL 2.0 - Healthcare Enhanced by Artificial Intelligence & Learning

An upcoming conference exploring the role of artificial intelligence in healthcare education and practice.

AI Clinical Scribes

Technology that captures physician–patient dialogue and generates clinical notes, improving presence and connection.

OpenEvidence – AI Clinical Decision Support Tool

A clinical AI search and decision-support tool designed to provide evidence-based answers to physician questions.

ConnectMyHealth (Ontario)

A provincial portal allowing patients to access their own laboratory and diagnostic results online.

Find Something to Hang Your Hat On!

Listen to The Hat Rack podcast, where physicians gain access to the strategies and insights that CPD experts use to plan, deliver, and measure meaningful continuing education. Guests draw from extensive local, national, and international experience, providing practical takeaways for physicians and educators alike.

Hosted by Dr. Bill McCauley, CPD Associate Dean at the Schulich School of Medicine & Dentistry, Western University in London, Ontario, Canada.

📧 Questions, Comments, & Suggestions: thehatrack@uwo.ca