A Physician-Led Longevity Practice

More good years.

Built on a plan that's truly yours.

Upstream Medicine takes the time to understand you, then builds a complete picture of how you're aging — past, present, and the road ahead. From there we structure a plan that keeps evolving: lifestyle as the permanent foundation, with carefully chosen medical interventions layered on top. Evidence-led, measured over time, delivered by a team that knows you.

How It Works Get in Touch
How We Measure You
A complete picture — not a single snapshot
past, present, and the road ahead
Present — how your body works today
DEXA · VO₂ · labs
Past — accumulated biological wear
imaging · clocks
Future — the pace you're aging now
trajectory
Most longevity testing tells you how things are right now. We also measure how much wear you've accumulated and how fast you're aging from here — then act on it.
Board-Certified Physician-Led
Lifestyle as the Foundation
Evidence-Weighted Interventions
Measured Over Time
Honest About What's a Bet
Care From a Team That Knows You
The Approach

Working upstream.

Most care waits for something to go wrong, then manages it. We work upstream of that — getting ahead of disease by understanding how you're aging now, then acting early. Lifestyle is the permanent foundation, never optional and never finished. On top of it we layer the interventions the evidence supports: nutrition and training, and where they're warranted, medications and other targeted tools — each chosen for a reason, each honest about how settled the evidence is.

Foundation
Lifestyle, Always
Nutrition, training, sleep, recovery, and connection — the permanent base everything else builds on. Never optional, and never declared finished at a normal number.
Present
How You Work Today
DEXA body composition, treadmill VO₂ max, and expanded lab panels — a high-resolution snapshot of current function, far beyond a basic physical.
Past
Accumulated Wear
Imaging and biological-age measures read the mileage you've put on — the wear that even pristine labs can miss.
Future
Your Pace of Aging
A forward read on how fast you're aging now — the rare metric you can act on and re-measure over time.
Layer
Medications, When Warranted
Where the evidence supports it, we layer pharmacologic tools onto the foundation — chosen for a specific reason, and started alongside lifestyle rather than only after it fails.
Layer
Supplements, With a Reason
Held to the same bar as a drug: a named indication, a plausible mechanism, and a way to know if it's working. No default stack.
Layer
Calculated Bets
Where the evidence is promising but not yet settled, we'll consider interventions ahead of consensus — clearly framed as calculated bets, with informed consent and a plan to re-check.
Team
People Who Know You
Care delivered by a team that takes the time to understand you, and adjusts the plan as your measurements — and the evidence — change.
We measure across past, present, and future, then layer evidence-weighted interventions on a lifestyle foundation. The approach is honest about what is well established and what is an emerging bet — and the specific tools we emphasize will evolve as the evidence does.
How It Works

How we work with you.

A relationship, not a one-time panel. We measure deeply, build a plan around you, and keep adjusting it over time.

01

Know You & Measure

We take the time to understand your history and goals, then build a complete picture of how you're aging — current function, accumulated wear, and the pace you're aging now.

DEXA, VO₂ max, expanded labs
Imaging & biological-age measures
Past, present, and forward view
02

Build the Plan

Lifestyle is the foundation, set first and never finished. On top of it we layer the interventions the evidence supports — each chosen for a reason, each honest about whether it's established or a calculated bet.

Lifestyle foundation, always
Medications & supplements, when warranted
Clear on what's settled vs. a bet
03

Measure & Adjust

Aging isn't linear and neither is the plan. We re-measure, see what's working, and adjust — refining the foundation and the interventions as your data, and the evidence, change.

Periodic re-measurement
Track changes over time
Adapt as your data evolves
The Practice

Built on a simple conviction.

The most valuable medicine happens before disease, not after it. Upstream Medicine is built around that idea: understand how you're aging early, hold lifestyle as the permanent foundation, and layer on the interventions the evidence supports — each chosen deliberately, each honest about how settled it is.

It's a relationship, not a one-time panel. We take the time to know you, measure deeply across past, present, and future, and keep adjusting the plan as your data — and the evidence — change.

Physician-Led Lifestyle Foundation Evidence-Weighted Measured Over Time Longevity Medicine
Common Questions

Good questions deserve honest answers.

A physician-led longevity practice focused on healthy years, not just years. We take the time to understand you, measure how you're aging across past, present, and future, and build an evolving plan — lifestyle as the foundation, with medical interventions layered on where the evidence supports them. [Confirm scope-of-practice and primary-care-relationship language with your attorney before publishing.]
Everything starts from the foundation of lifestyle, which is never optional and never finished — a normal lab value isn't the same as being optimized. On top of that we layer interventions chosen for a specific reason and weighed by the strength of the evidence behind them. We're explicit about what is well established versus what is a calculated bet ahead of consensus, so you always know which is which.
Some interventions have promising but not yet definitive evidence. Where the potential benefit and safety profile justify it, we'll consider acting before formal consensus catches up — but always transparently: framed as an informed, experimental choice, with your consent and a clear plan to measure whether it's working and when to stop. We don't dress up an emerging bet as settled science.
No. Lifestyle and medication aren't a sequence where you have to fail first — they run in parallel, each doing what it's actually good at. And the lifestyle work doesn't stop once a number normalizes: reaching a healthy weight or lab value is the start of optimizing nutrition, fitness, and resilience, not the finish line.
Upstream Medicine is led by a board-certified physician, and every tool — lifestyle change, medication, or supplement — is held to the same bar: a clear reason, evidence behind it, and a way to measure whether it's working. There's no default supplement stack and no hype. The discipline is what separates this from wellness branding.

Curious whether this is right for you?

Upstream Medicine is a physician-led longevity practice. If you're thinking seriously about how you age and want a measured, evidence-led plan built around you, reach out and we'll talk about whether we're a fit.

Physician-led
Lifestyle foundation, evidence-weighted interventions
Measured over time
ncohenx1@gmail.com