Tahsin Khan

This page is a running record of how I spend my time outside of clinical work. Much of what I work on doesn’t turn into a product, post, or announcement. It looks like conversations, reading, sketching, experimenting and writing things that get cut, and ideas that are deliberately abandoned.
I keep this list for two reasons:

BillBuddy (Hospital Billing Platform)

Nov 2025 → Present · Ongoing
Time investment: 20-30 h/week, sustained, multi-month focus

What it is

Why I'm doing it

What it took

Status

Constraint

Using the app must be faster than doing it manually, even on a bad day.

What matters

Adoption without training. Accuracy that earns trust. Stickiness through time saved. Growth with low churn.

On-call escalation workflows in hospital settings

Mid 2025 → present · exploratory

Explored whether on-call noise and mis-escalation could be reduced with a structured intake layer for nurses before physician escalation. This involved mapping recurring failure patterns, clarifying what information is missing versus unused, and stress-testing whether the problem is tooling, training, or incentives.

Work included documenting escalation patterns, pressure-testing summaries that would be physician-usable, and identifying where responsibility actually breaks down.

Current state
Conceptually clear. Operational complexity remains high. No build decision.

What it clarified
Most escalation problems are not information deficits. They’re ownership and incentive failures.


Vital Shift direction reset

Late 2025 → present

Narrowed the newsletter away from broad longevity education toward helping readers interpret signals and make decisions. This involved writing pieces that never shipped, cutting sections that felt informative but hollow, and tightening the scope around what earns attention.

Current state
Direction locked. Fewer topics, more depth.

What it clarified
Subtraction creates more signal than expansion.


Longevity clinic model, revisited

Late 2025 · paused

Re-examined a clinic concept I had previously rejected, this time separating business quality from strategic optionality. The work was less about spreadsheets and more about understanding patient flow, physician time leverage, delegation limits, and whether the clinic functions as a profit center or a launchpad.

Current state
No build decision.

What it clarified
Some things are poor standalone businesses but useful strategic footholds.