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Choosing Care

How to tell a longevity doctor from a longevity clinic.

The category has filled with clinics that sell a protocol and call it longevity medicine. Four questions separate a physician reading your biology from a storefront selling a package, and all four are answerable before you pay anything.

Daniel Tagge, MD5 min read

Longevity medicine has become a category, which means it has filled with businesses. Some of them are excellent. Some are a med spa with better typography. The difference is not visible from the website, and it is not visible from the price, because the expensive ones are frequently the emptiest.

Four questions separate a physician reading your biology from a storefront selling a package. All four are answerable before you spend anything, usually on a free call.

Question one: who reads your results?

Not who draws the blood. Not who hands you the binder. Who sits with your panel and decides what it means.

In a large share of longevity clinics the answer is a nurse practitioner, a health coach, or a software-generated report with a physician's name at the bottom. That is not a slight against nurse practitioners, who I work alongside and respect. It is a statement about what the work requires. Reading a metabolomics panel against a hormone panel against a gut panel against a lipid panel, and finding the one thread that explains four symptoms, is a synthesis problem. It takes training and it takes hours.

Ask directly: will a physician read my results, and will I speak with that physician about them. Then ask how long the appointment is. If the answer is thirty minutes, no synthesis is happening in it.

Question two: does the practice make money on what it sells you?

This is the question that reorganizes everything else.

If a clinic profits on the panel, the IV, the supplement, and the scan, then every recommendation it makes is simultaneously a clinical judgment and a revenue line. Sometimes those point the same direction. Sometimes they do not, and you have no way to tell which case you are in.

The tell is markup. Ask what the lab actually costs the practice and what you are being charged. A practice that bills at cost will answer immediately, because there is nothing to hide. A practice with margin in it will explain that the price reflects the interpretation, the technology, and the experience. That may even be true. It is still margin.

In my practice every test is billed at my actual cost with the invoice visible, supplements go through Fullscript at the maximum physician discount with no margin built in, and my fee for the interpretation is stated plainly before anything is ordered. The fee for my time is the whole business model.

Question three: is it a protocol or a read?

Here is a test you can run in about four minutes on any clinic's website.

Look for whether the offering is described as a package with a fixed contents list, identical for everyone, or as a process that starts by looking at you. Packages are easier to sell and easier to deliver, and there is a reason the industry converged on them.

The problem is that a protocol assumes it already knows the answer. If your fatigue is a ferritin of 35 and a fasting insulin of 12, then peptides, an IV, and a whole-body scan are all beside the point. You needed iron and you needed to fix the insulin, and no amount of packaged intervention substitutes for having read the panel first.

Question four: what happens after the baseline?

The single most common failure in this category is a spectacular baseline followed by nothing.

You pay a large number. You get an extraordinary volume of data. You get a beautiful document. Then you are alone with it. Six months later nothing has changed, because the document was the product and the treatment was never really the point.

The question to ask is what the cadence is. What gets re-tested, when, and who is watching the trend. In my practice metabolomics gets re-run on a cadence so we can see whether an intervention actually moved anything, and the plan gets revised as your biology shifts. A baseline you never repeat is a photograph. What you want is the film.

Side by side

Longevity clinic (typical)Physician-led longevity care
Who reads your panelOften an NP, a coach, or a generated reportA physician, and you speak with them
What you are buyingA package with fixed contentsA read of your specific biology
Testing revenueMarked up, often significantlyBilled at cost, invoice visible
SupplementsA retail line with marginWritten when measured, no margin
ImagingFrequently bundled, five figuresOrdered when your risk warrants it, at cost
After the baselineOften nothingRe-tested on a cadence, plan revised
Standard of comparisonThe lab's normal rangeOptimal ranges from healthy 21 to 30-year-olds

The thing the category gets backwards

Most longevity marketing is built on the promise of more. More markers, more scans, more intervention, an ever-larger number as proof of seriousness.

More data is not the hard part. Anyone with a lab account can generate a hundred pages. The hard part is knowing which four numbers on those hundred pages explain why you feel the way you do, and what to do about them in what order. That is a physician problem, and it does not get easier by adding a full-body MRI to it.

I do not bundle five-figure scans you may not need. When your actual risk warrants imaging, I order it, at cost, like everything else.

If you are comparing options in Charlotte

Ask the four questions of every practice on your list, including mine. Who reads it. Who profits from it. Protocol or read. What happens after.

A practice that answers all four cleanly is worth your money whether or not it is this one. A practice that gets evasive on the second question has told you what you needed to know.

More on how I work is on the longevity doctor page, and the honest map of the different kinds of practice competing for the same search is on the Charlotte hub.

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Dr. Daniel Tagge, MD

Written by

Daniel Tagge, MD

Board-certified family physician. North Carolina’s only physician certified in Health Optimization Medicine. Third-generation physician. NPI 1225562218.

About Dr. Tagge

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