Primary care is under structural strain. We help health systems do something about it.
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Tributary Advisory Group (TAG) helps health systems and physician groups design and implement membership-based care models that restore physician time, strengthen patient relationships, and stabilize primary care economics — without abandoning insurance-based care.
MEMBERSHIP
MEDICINE
SOLUTIONS

Jim Lawlor, DO, MBA
OSU Executive Health Medical Director · AMMP (Association of membership Medicine Professionals) - Founder & Board Chair
Creator of the Semi-Concierge Medicine® Model · Top Concierge Physician Leader 2025 · Annual Speaker - Concierge Medicine Forum
OSU Executive Health Medical Director · AMMP (Association of membership Medicine Professionals) - Founder & Board Chair
Creator of the Semi-Concierge Medicine® Model · Top Concierge Physician Leader 2025 · Annual Speaker - Concierge Medicine Forum
Jim Lawlor, DO, MBA
OSU Executive Health Medical Director · AMMP (Association of membership Medicine Professionals) - Founder & Board Chair
Creator of the Semi-Concierge Medicine® Model · Top Concierge Physician Leader 2025 · Annual Speaker - Concierge Medicine Forum
WHY THIS, WHY NOW...
The squeeze is structural
Panels of 1,800–2,500 leave no time for the relationship. Workflow tweaks won't fix it.
It's a portfolio problem
Not fee-for-service vs. concierge. A spectrum of models that can coexist within one system.
Built, not theorized
We operationalized a middle-ground model inside an academic medical center — and turned it around.
Lisbon, Portugal
“Working with TAG has been a game-changer for us.
Jim brings clarity, structure, and momentum to complex clinical and operational challenges. Our physicians are more engaged after his sessions, workflows are improving, and there is clear organizational buy-in. If we could hire him full-time to help scale our model globally, we would.”
What is membership medicine?
Understand the spectrum
Learn the model →
How we work
Our approach & services
See the process →
About Dr. Lawlor
The experience behind TAG
Meet the founder →
