Discover the “Why” Behind Your Symptoms

Functional medicine at Philadelphia Integrative goes deeper than diagnosis—uncovering hidden imbalances, interpreting advanced labs, and designing personalized plans that help you heal from the inside out.

Uncover the ‘Why’ Behind Your Symptoms

Functional medicine at Philadelphia Integrative is about understanding the story behind your health challenges—not just managing the label. We investigate the root cause and partner with you to co-create a healing strategy that works.
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What Is Functional Medicine?

Functional medicine is a systems-based approach to health. Instead of looking at isolated symptoms, we examine how your body systems interact—digestive, hormonal, immune, detox, nervous—and what imbalances may be contributing to illness.

We ask:

  • What’s causing the symptoms?

  • Why did this happen now?

  • What’s your body telling us?
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How It Works

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Common Areas of Focus

Meet Your Care Team

From your first consult to follow-up care, we guide you with clarity, compassion, and real support.

What to Expect at PIM

From your first consult to follow-up care, we guide you with clarity, compassion, and real support.
How We Stand Out

Why PIM is Different

Deep Credentials

All providers have functional medicine certification and integrative medicine training.

Collaborative Review

We meet to review complex cases as a team—so you benefit from our combined 100+ years of experience.

Expert Lab Interpretation

We don't just order labs—we explain them in detail and connect the dots.

Time to Think, Not Rush

60–90 minute visits allow space for insight, pattern recognition, and strategic planning.

The Integrative Medicine Team

Meet the Expert Providers Behind Your Care

At PIM, you don’t just see a single provider — you gain access to a team of integrative experts who work closely together on your care. We meet regularly to review cases, share insights, and ensure every patient benefits from the collective knowledge of our providers. This means more support, more clarity, and more meaningful healing — from people who truly care.

Ready to get started?

We’re here to listen, guide, and walk with you on your healing journey.
Patient Reviews

Five-Star Reviews for Philadelphia Integrated Medicine

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Jeff Crystal profile picture
Jeff Crystal
September 20, 2025
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In short, I found the group … terrific. Comfortable. Caring. And knowledgeable. Far exceeding any medical group I have dealt with in years.
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Miriam Duff profile picture
Miriam Duff
July 17, 2025
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Philadelphia Integrative Medicine has been a lifesaver for me. When I first went, a year ago,, I felt like I was 85 and aging fast. Now I feel, if anything, younger than my actual 64, and getting better all the time. Three people this week told me they thought I was 55! PIM's comprehensive, detailed approach is based in extensive testing, so there's a whole lot less guesswork and a whole lot more success. I have seen both Dr. Tetlow and Dr. Patterson and am a huge fan of both. Cannot recommend highly enough. Pricey, but worth every penny if you can swing it.
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Nita Lescher profile picture
Nita Lescher
June 5, 2025
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I am a relatively new but, so far, a very satisfied PIM customer. After 10 months of looking for a health care provider who would listen to, collaborate with and communicate with me to treat ongoing GI issues, I found Amy Nutter (NP) and Jennifer Patterson (DO). Both women are smart, thorough, compassionate, and very responsive to the follow-up questions I ask between appointments. To a person, everyone with whom I have interacted in the office is exceptionally professional and kind. Thank you for being there, PIM!
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Kaysi Krill profile picture
Kaysi Krill
May 23, 2025
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Incredibly personalized, thorough, thoughtful care. I can't say enough great things about this practice.
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Kerry Mallett profile picture
Kerry Mallett
April 5, 2025
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I have pursued many avenues to get a resolution to my health issues - which included at times debilitating fatigue, headaches, and GI issues - and through comprehensive labwork and a holistic approach I not only have answers to the underlying causes, but am feeling better in the first time in ~4 years of trying to find an answer to my health issues thanks to the team at Philadelphia Integrative Medicine.
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Toros Asadourian profile picture
Toros Asadourian
February 17, 2025
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PIM is life changing. My wife was treated about five years ago to resolve some long standing issues no regular primary care doc nor specialists she saw could get to the bottom of. Years later I signed up and am receiving the same exceptional care and attention you would want from your Doctor. If all medical care could be done this way, our world would just be better. All members of PIM from Dr. Tetlow to her scribe give me (and gave my wife) the utmost care, compassion and competence. We recommend this practice to EVERYONE, including other practitioners as the model of what healthcare should be.
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Jana de Leon profile picture
Jana de Leon
February 13, 2025
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I can't say enough good things about Dr. Jennifer Patterson. She is extremely knowledgable, caring, and resourceful! I always leave feeling better than when I came in.
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Roger Jeffery profile picture
Roger Jeffery
October 12, 2024
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My Dr. is Dr. Patterson. My experience is that she is smart, thoughtful, thorough and engages me in my own health journey. Exactly what I want in a doctor. I enjoy consulting with her and respect and appreciate her advice and opinion.
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