Dr. Christina Paul, MD, board-certified physician at Extend Medical

Board-Certified Physician · Precision & Longevity Medicine

Meet Dr. Christina Paul

Dr. Christina Paul is a board-certified physician who spent over a decade practicing medicine before building Extend Medical. Her practice combines the clinical rigor of her medical training with a deep commitment to understanding why patients feel the way they do, not just whether their labs fall within a standard reference range.

She founded Extend Medical because she wanted to practice medicine differently. Longer appointments. Deeper testing. A small patient panel where every person gets her full attention. And a focus on finding the root cause of symptoms, not just managing them.

The path to precision medicine

Dr. Paul's journey to this work followed the traditional path: four years of undergraduate study, four years of medical school, and years of clinical residency training. She earned her medical degree, completed her residency, and became a board-certified physician.

Board certification is a rigorous credential. It requires passing comprehensive examinations administered by the American Board of Medical Specialties, demonstrating mastery of clinical knowledge and patient care. It also requires ongoing continuing education to maintain. It represents the highest standard of competency recognized in American medicine.

But certification was a starting point, not the destination. During her years in practice, Dr. Paul noticed a pattern that shaped everything that followed. Patients would come in with persistent fatigue, unexplained weight changes, hormonal symptoms, brain fog, digestive issues. Their standard lab work would come back within reference ranges. And they would leave still feeling unwell, without a real plan.

"The question that kept coming back to me was simple: if the patient doesn't feel well, why are we stopping at 'normal'?"

She turned toward the deeper work. Metabolic and hormonal systems. Inflammatory pathways. Nutrient and micronutrient health. The patterns that emerge with careful follow-up over time. The root causes that come into focus when you study a complete picture.

That's what led her to build Extend Medical. A practice designed around the kind of medicine she believed patients deserved: thorough, personalized, and built on a physician's clinical expertise.

Philosophy

How she thinks about your health

Dr. Paul believes that health exists on a spectrum. Most of medicine is built to identify disease and manage it. That's essential work. But there's an enormous space between "you have a diagnosis" and "you feel your best" that rarely gets attention.

Her practice operates in that space. For patients with active symptoms, the goal is to find the underlying cause and resolve it. For patients who feel good but want to get ahead, the goal is proactive screening, optimization, and long-term strategy.

Why a small practice

Dr. Paul intentionally keeps her patient panel small. Understanding a patient's full health picture takes time. Reading through medical histories, cross-referencing lab results across systems, coordinating with other providers, building a plan that accounts for medications, lifestyle, goals, and budget. That depth just isn't possible for a provider in a high-volume practice.

Why virtual

All consultations happen virtually, by design. Dr. Paul's patients are busy professionals, parents, and executives. Virtual care removes the friction of commuting, waiting rooms, and scheduling around an office location. It also means her patients aren't limited by geography. The appointments are long, unhurried, and substantive. The setting is wherever the patient is most comfortable.

Your physician, not your only physician

Dr. Paul supplements your existing care team. She doesn't replace your primary care physician, your OB/GYN, or your specialists. She fills the space between them: the deep investigation, the root-cause analysis, the ongoing optimization that most practices don't have the time or tools to provide. She coordinates with your other providers so everyone stays informed and aligned.

About Board Certification

What does it mean to be a board-certified physician?

Board certification represents the highest standard of clinical competency recognized in American medicine. Here's what that means and why it matters when choosing a provider for your health.

What training is required to become a board-certified physician?

14+ years of education and clinical training

The path to becoming a board-certified physician requires a four-year undergraduate degree, four years of medical school to earn a medical doctor degree, followed by three to seven years of supervised residency training in a clinical specialty. After completing residency, the physician must pass comprehensive board examinations administered by the American Board of Medical Specialties (ABMS) to earn certification.

Board certification also requires ongoing continuing medical education and periodic recertification to maintain, ensuring that certified physicians stay current with advances in medical science and practice standards.

What can a board-certified physician do?

A board-certified physician has the full scope of medical training and licensure. This includes the ability to independently diagnose medical conditions, prescribe medications, order and interpret advanced diagnostic testing (including imaging, bloodwork, and specialty panels), perform clinical procedures, manage complex medical histories involving multiple conditions and medications, and coordinate care across other physicians and specialists.

This scope of practice is particularly relevant when a patient's health concerns span multiple body systems, when medications may interact with one another, or when symptoms have resisted explanation through standard evaluation.

Who provides care in the root-cause and functional health space?

The field of root-cause, functional, and integrative health includes practitioners with a wide range of backgrounds and training levels. Care may be provided by physicians (MDs and DOs), nurse practitioners (NPs), naturopathic doctors (NDs), chiropractors (DCs), registered dietitians, certified health coaches, and other allied health professionals. Each brings different training, different scopes of practice, and different levels of clinical authority.

Understanding the background and qualifications of your provider can help you make an informed decision about who is best suited to manage your specific health needs.

Why would a physician choose to practice root-cause medicine?

Physicians who move into root-cause or precision medicine typically do so because they want to go beyond disease management. They've seen patients whose symptoms don't resolve through standard evaluation, and they want the time and tools to investigate more deeply. They bring their full medical training, including the ability to prescribe, manage medications, interpret complex diagnostics, and coordinate across specialists, to an approach that prioritizes understanding why a patient feels the way they do.

This combination of clinical training and investigative depth is what distinguishes a physician-led root-cause practice from other models of care in this space.

Education & Training

Three countries. Four institutions. Fourteen years.

Toronto, Canada

University of Toronto

Pre-medical training at one of the top 10 universities in the world for medicine.

Coventry, United Kingdom

University of Warwick

Medical training at a Russell Group university, the UK's elite research consortium.

London, United Kingdom

King's College Hospital

Hospital training at one of London's busiest teaching hospitals, treating over one million patients each year.

London, Canada

Western University

Internal medicine residency and fellowship at one of Canada's top research-intensive medical schools.

Beyond the Practice

Outside of medicine

Dr. Paul lives in Atlanta with her husband, their two young children, and their goldendoodle Rocco. She's happiest outdoors and near water. The ocean is her favorite, and she travels whenever she can, often making time on those trips for a picturesque sunset. She serves on the board of the Georgia Alliance to End Homelessness.

She grew up between countries and has carried that with her. An appreciation for different cuisines. A curiosity about how people live. An instinct toward community in all its forms: family, friends, church, the people she sees every week. She has a soft spot for a good coffee in a good coffee shop.

The way she practices medicine reflects how she lives. Considered, attentive, and built around the people in her care. Extend Medical is the practice she would want for her own family. She holds it to that standard for every member.

Dr. Paul with family and dog in a park, relaxed and smiling