Board-Certified Physician · Precision & Longevity Medicine
I'm Dr. Christina Paul, a board-certified physician practicing precision and longevity medicine. I help high-performing professionals get to optimal and stay there.
Meet Dr. Paul
Early in my career, I noticed a pattern: people with real symptoms whose appointments ended before their stories did. I wanted to practice differently. To take the time to understand what was actually happening at the metabolic and cellular level, think carefully across systems, and build plans that addressed the full picture.
My approach starts with you, not your numbers. I want to know your full story, what you've already tried, and what feeling well looks like for you specifically. The right testing matters, but it's there to clarify thinking, not replace it.
That's why I built Extend Medical. A practice where I have the time to listen, the tools to investigate, and the expertise to connect the dots across your entire health picture.
"I don't run protocols at scale. I build a plan around your biology, your history, and your life."
This work requires depth. Every patient gets my full attention. Unhurried consultations, thorough follow-up, and direct access to me between appointments.
Learn more about my background and training →Our Approach
A precision medicine program with one goal: take you from where you are to a state of true health, energy, and resilience. Three phases. Built with intention.
First, we find what's actually driving how you feel and address it at the source. The foundation everything else builds on.
Then, we fine-tune performance. Energy, cognition, body composition, sleep, stress. Where you stop accepting baseline and start raising it.
Finally, we apply longevity science. Advanced biomarkers, proactive screening, evidence-based interventions. The years you live well.
A doctor who knows your chart, your habits, and what's been changing. Not someone meeting you fresh each time.
Real answers about what's driving how you feel, and a plan to address it. Not just whether you're "in range."
Care designed for your biology, your goals, and your budget. Not a one-size protocol or a supplement stack.
One physician coordinating across your PCP and specialists. So nothing falls through the cracks of your care.
Long, substantive virtual visits from wherever you are. No waiting rooms, no commutes, no rushed conversations.
Ongoing access and consultations as your body and goals evolve. A partnership built around your Cellular VitalityTM.
Who I Help
You're successful, driven, and disciplined. But something is off. You've been to doctors. You've heard "your labs are normal." And you're still not feeling like yourself.
Fatigue & Energy
You're getting rest, eating well, doing everything right. But the energy isn't there. The afternoon crashes are constant. Something deeper is going on.
Learn about root causesWeight Loss
Diets, exercise programs, discipline. You've been consistent, but the results aren't matching the effort. The answer is often found in your hormones, inflammation, or how your body processes fuel.
Learn about root causesHormones
Sleep disruption, mood shifts, brain fog, hair changes. You've had bloodwork done. Results came back in range. But you know there's more to the story.
Learn about root causesBrain & Cognition
Now you're re-reading emails twice. Your recall isn't what it was. You're concerned about what's behind it and want someone who will actually investigate.
Learn about root causesGut Health
You've been told to "eat more fiber" or "manage stress." But your gut is connected to everything. Energy, immunity, hormones, mood. When digestion breaks down, the whole system follows.
Learn about root causesLongevity & Prevention
You're proactive about everything else in life. Your annual physical checks for disease. You want someone who screens for the early warning signs before they become problems.
Learn about root causes1/6
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Is This Right for You?
The Experience
A deep, ongoing physician relationship built around your health. With the time and depth the work requires.
A comprehensive review of your medical history, current symptoms, medications, lifestyle factors, and goals. I take the time to understand the whole picture before ordering a single test.
Based on your history and goals, we choose the right diagnostic approach. The testing serves the thinking, not the other way around. We factor in your budget and what insurance may cover.
I don't just read lab values. I interpret how your body's systems interact, consider your medications and history, and build a picture that explains what's actually happening.
A personalized care plan. Targeted interventions, lifestyle changes, supplementation, and follow-up testing. Not a generic protocol. Not a stack of supplements and good luck. A plan designed around your biology, your goals, and your reality.
Direct access to me for questions and guidance. Follow-up consultations as we track your progress. Adjustments as your body responds. This is an ongoing relationship, not a one-and-done visit.
Extend Medical is designed for deep, ongoing health investigation and optimization. We work alongside your existing care team. We do not provide emergency or urgent care.
Education & Training
The University of Toronto, the University of Warwick, King's College Hospital, London, and Western University.
Professional memberships
Patient Outcomes
"I wasn't sick when I came to Dr. Paul. I wanted a real plan built around my data, not a template. Six months in, my biomarkers are objectively better and I finally understand what's driving them."
Patient, age 46 · Longevity and metabolic optimization
"The depth of the first consultation was unlike anything I'd experienced before. She listened to my full story, asked questions I'd never been asked, and ordered testing that revealed things I didn't know to look for."
Patient, age 51 · Perimenopause symptoms and brain fog
"Dr. Paul is the rare physician who holds longevity science and conventional medicine in the same hand. She weighs in on my supplements as confidently as my prescriptions, and the whole picture finally connects."
Patient, age 49 · Comprehensive health optimization
"The virtual format was actually better than in-person. No rushing, no waiting room, and Dr. Paul was incredibly thorough. She coordinated with my cardiologist and my PCP so everyone was aligned."
Patient, age 55 · Proactive cardiovascular and longevity screening
If you're tired of being told "everything looks normal" when it doesn't feel normal, let's talk. I review every inquiry personally.