Advanced Testing, Expertly Interpreted.

Our Specialty Testing process uncovers hidden imbalances across gut, hormones, toxins, and more. We connect the dots with expert insight to reveal the reasons for your symptoms.

Access to Best of Specialty Tests

We provide access to the best specialty testing, provide expert interpretation, and negotiate cost reduction whenever we can. We expertly order and interpret conventional blood work – and our lab ranges are more evidence-based.
Functional Medicine Doctor Taking Notes for Personal Health Report

What Is Specialty Testing?

Specialty testing looks deeper than standard blood work. These labs assess function—not just disease—and often include:
  • Gut microbiome analysis (e.g. GI-MAP, Genova Diagnostics)

 

  • Hormone and adrenal testing (e.g. DUTCH, saliva, urine)

     

  • Mold, mycotoxin, or heavy metal exposure

     

  • Food sensitivity & immune response (e.g. IgG/IgA panels)

     

  • Nutrient absorption, mitochondrial function, oxidative stress

     

  • Autoimmune, Lyme, and stealth infections

     

  • Genetic panels (MTHFR, detox pathways)

     

  • These are powerful tools—but only when interpreted correctly.
Orange Check
Why Patients Prefer Us
Blue Check
Why Most Practices Miss the Mark

Testing Process Overview

We prepare for and collaborate in advance of your appointment. Please complete blood work at least 2 full weeks before your appointment.
Orange Check
What to Know
Blue Check
Testing Costs & Value
People working in the laboratory

Commonly Used Laboratories

We collaborate with a variety of reputable laboratories to provide comprehensive testing options:
How We Stand Out

Why PIM is Different

Collaborative Team Care

We meet as clinicians to review and refine treatment strategies.

Extensively Trained Providers

All team members are board-certified and integrative/functional medicine trained.

Expert Interpretation of Labs

Many order labs. Few know how to interpret them. We do it right.

Time to Listen

Sessions range from 60–90 minutes because real care takes time.

How We Use Lab Testing

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.

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

Posted on Google Google
Jeff Crystal profile picture
Jeff Crystal
September 20, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
In short, I found the group … terrific. Comfortable. Caring. And knowledgeable. Far exceeding any medical group I have dealt with in years.
Posted on Google Google
Miriam Duff profile picture
Miriam Duff
July 17, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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.
Posted on Google Google
Nita Lescher profile picture
Nita Lescher
June 5, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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!
Posted on Google Google
Kaysi Krill profile picture
Kaysi Krill
May 23, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Incredibly personalized, thorough, thoughtful care. I can't say enough great things about this practice.
Posted on Google Google
Kerry Mallett profile picture
Kerry Mallett
April 5, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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.
Posted on Google Google
Toros Asadourian profile picture
Toros Asadourian
February 17, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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.
Posted on Google Google
Jana de Leon profile picture
Jana de Leon
February 13, 2025
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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.
Posted on Google Google
Roger Jeffery profile picture
Roger Jeffery
October 12, 2024
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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.
Verified by Trustindex
Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more