For Adults Who Are Well — and Want More
Optimal performance
You're healthy — and you intend to stay that way. This is medicine for people who refuse to coast: measure what matters, optimize what's possible, and add good years to your life.
Chesterfield, MO · Ankeny, IA · Chariton, IA · Virtual visits available
The Approach
Healthy is the baseline.
Optimal is the goal.
Know your numbers. All of them.
VO2 max, body composition, vascular health, continuous glucose, cardiac function, hormones — the data that actually predicts how you’ll age.
Tune the engine.
Hormones, mitochondria, metabolism, recovery, and sleep — optimized with precision protocols, not generic wellness advice.
Defend the gains.
Ongoing physician oversight that catches small drifts before they become diagnoses — proactive medicine, years ahead of the problem.
Advanced Diagnostics
If you don't measure it,
you're guessing.
A diagnostic suite most physicians have never had access to — under one roof, interpreted by physicians who know you.
VO2 Max Testing
The single strongest predictor of longevity — measured precisely, trained deliberately.
InBody 270® Composition
What the scale can’t tell you: where your weight actually lives, and how it’s trending.
Defend the gains.
See exactly how your body handles food, stress, sleep, and training — in real time.
GlycoCheck® Vascular Assessment
The health of your smallest blood vessels — where cardiovascular aging shows up first.
Multi-Function Cardiogram
A deeper look at heart performance than a standard EKG was ever designed to give.
FibroScan® Liver Assessment
Quantified liver health in minutes — no needles, no guesswork, no waiting for symptoms.
Brain Gauge® Neuro Assessment
Objective brain-performance tracking — focus, processing, and recovery, measured over time.
Precision Lab Panels
Hormones, inflammation, nutrients, metabolic markers — far beyond the annual-physical basics.
Hormone Optimization
Bioidentical optimization dosed to your labs and goals — energy, recovery, body composition, drive.
The Long Game
Your trajectory matters more than any single number.
Anyone can run labs once. The power is in the trendline: a physician who knows your baseline, watches your data year over year, and intervenes the moment something drifts — a decade before it would have become a diagnosis.
- Annual deep-dive assessment against your personal baseline
- Quarterly tracking of the markers that matter most for you
- Direct physician access when life throws a curveball
- A plan that evolves with your training, your work, and your age
Ongoing Care
Optimization isn't an appointment.
It's a relationship.
Proactive, not reactive
Scheduled assessments and check-ins designed to stay ahead of problems — not respond to them.
Direct physician access
Questions answered by the doctor who knows your data — not a portal, not a stranger, not a two-week wait.
A team that knows your name
The same physicians, year after year, invested in your long-term trajectory — medicine the way it used to feel.
Membership built around your goals
From annual deep-dives to full ongoing optimization — we'll match the level of care to where you are and where you're headed.
HOW IT WORKS
Three steps. Zero runaround.
1. Book a free discovery call
Tell us your goals — performance, longevity, energy, all of the above. We'll map the right starting point.
2. Establish your baseline
Advanced diagnostics and precision labs build the most complete picture of your health you've ever seen.
3. Optimize and track
A precision protocol tuned to your data — measured, adjusted, and defended year over year.
Good enough isn't your style.
One free, unhurried conversation about your goals — and exactly how we’d help you get there.
Chesterfield, MO · Ankeny, IA · Chariton, IA · Telehealth
EXCELLENT
Based on 63 reviews
Posted on Google![]()
Dave GreeneTrustindex verifies that the original source of the review is Google.
The entire staff is very friendly and sincerely interested your health. I have had blood tests done that my insurance primary has never heard of and that revealed issues that he was unaware of. James clinic diagnosed the cause and cured tge problem. They are the best!Posted on Google![]()
steven marchantTrustindex verifies that the original source of the review is Google.
The James Clinic is like stepping into a different world,they care about their patients! I've been with them several years, it's a five hour drive for me. They seem more like family That's hard to find! I would suggest the James Clinic 100 percent.Posted on Google![]()
Deanna MartinTrustindex verifies that the original source of the review is Google.
I love the James Clinic and everyone there! I have learned so much about how to improve my health and not just how to treat my symptoms. They are so real there. They talk to you. They engage on a personal level and really care about my health and wellness. I feel very in control of my healthcare rather than being controlled by the provider or insurance company. I highly recommend this clinic and its providers!!Posted on Google![]()
Maria CTrustindex verifies that the original source of the review is Google.
Exceptional from the staff at the front door, throughout the clinic, the advance practice HCPs and Dr. James herself! Do yourself a favor and make the investment in your OPTIMAL state of health. Come educated. Come curious. They love having discussions. The testing and health optimization tools they offer are exceptional.Posted on Google![]()
Brad SmythTrustindex verifies that the original source of the review is Google.
I cannot say enough positive things about Dr James and her entire staff. We work primarily with Sara Taylor, NP, and she has been nothing short of amazing. Our whole family, including my two teenage boys, have been with them for over a year now and we are thankful every day that we found them. One of my teenage sons has ASD, on top of numerous health issues and the attention Sara and the team has given to help him has been life changing!Posted on Google![]()
Brett & Connie RobertsTrustindex verifies that the original source of the review is Google.
Sara Taylor is awesome! She has taken care of all my outpatient needs for more than 18 months! 10/10 all the timePosted on Google![]()
Jennifer LymanTrustindex verifies that the original source of the review is Google.
In addition to being incredibly knowledgable, I really appreciate the care Kate takes with her patients. It's very valuable to me that they are functional medicine physicians/NPs at this practice vs those who wear the doctor title without having medical training.Posted on Google![]()
Joanne CurranTrustindex verifies that the original source of the review is Google.
NPs Justina Timms and Sarah Taylor are always incredibly well prepared, knowledgeable and take all the time needed to explain labs and test results to me in ways that I can understand. Their professionalism and expertise continue to astound me. They also check in after procedures or explanations with well documented follow up. In addition, every nurse at the clinic is warm, friendly, personable, knowledgeable and professional to the Nth degree! Theresa, Michelle, Whitney, Lauren, Brenda, Mary and Chelsea all work hard and are extremely timely when completing procedures such as HBOT and MDI treatments. I have nothing but the highest regard for the James Clinic and all who work there including their lead Dr. Mollie James. My gratitude runs deep for their services.