Functional and Integrative Medicine

InSpero Medical offers a unique approach to functional medicine. We combine the wisdom of western allopathic medicine and traditional chinese medicine with lifestyle medicine and innovative regenerative medicine techniques.

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Our Services

Functional Medicine

Functional Medicine utilizes a holistic and evidence informed approach to identify and address the underlying causes of disease and imbalance across all systems of your body.

Regenerative Aesthetics

Antiaging therapies, such as hair restoration and microneedling, are aimed at recapturing youthful structure and function using your body's own systems.

Peptide Therapy

Medically-managed peptide therapy can be customized to your unique needs and goals and may benefit things like longevity.

IV Therapy

Medical-grade & personalized IV therapy bypasses the gut & is recommended for the replacement of essential nutrients.

Nutrition Counseling

Confused about nutrition advice? We hear you and are here to help you learn the ins & outs of healthy eating and what your body needs.


Whether you are at home, work, or on vacation, telehealth appointments allow you to meet with our doctors using a secure video platform when and where it’s convenient for you.

Pre-consult with our Executive Director

Are we a match? We want to make sure our doctors are the best fit for you.

This complimentary phone meeting with our Executive Director provides the opportunity to discuss your health goals and ask questions about our office and services.

This is also a chance for us to make sure that our offerings are going to best support you on your journey to optimal health.

If we believe another office or service is a better fit, we are happy to share that information with you too.

Build your Health Profile

Share your entire health history. The more we know, the better we can serve you.

Once you have scheduled your initial consultation, we collect your detailed health story and will coordinate getting any pertinent medical records (like laboratory results and imaging studies) from the last year or so.

The doctors will then review all of this information before you sit down with them for your first visit.

Meet your Doctors

We take the time to get to know you and explain the details.

Your initial consultation is roughly 90 minutes, but let’s just say no one is counting down the minutes.

We want to get to know what makes you, you and believe the best way to do that is to spend time listening to your story and asking detailed questions.

Your doctor will also complete a physical examination which includes everything from listening to your heart to a full neurological workup if necessary.

Dr. Susan Lan
Sarah Pfeiffer

Personalized Plan

From what to eat to supplements and IV infusions we’ve got you covered with a detailed protocol tailored just to you.

At the end of each visit, you will receive a personalized protocol that outlines all of the recommendations discussed in your visit and includes resources to continue learning at home.

Our patient care coordinator and health coaches will review it with you step by step to make sure you have access to everything you need.

Functional Integrative Medicine

Functional Medicine


Dr. Lan has been helping me with my thyroid issues for three years now and I couldn’t be more grateful for her compassionate care and insightful medical advice. Her inclusive testing has helped me understand what my body needs and how best to provide it through dietary changes and supplements. Despite previously having half my thyroid removed, I’ve been able to get off medication and today am living the active lifestyle I love. I recommend Dr. Lan and her supportive team to everyone I know. Thank you!

Dr. Lan's approach — finding and eliminating the cause of my illness, rather than just treating its symptoms — made sense to me when she explained it at our first appointment. She really took time to get to know me, and to understand what I wanted from my medical care. After completing a series of tests and following Dr. Lan’s recommendations, I’ve seen a dramatic reduction in my symptoms and I am far less dependent on prescription medication. It’s an approach I would recommend to anyone facing a serious disease like my colitis.​​