TDA Adds GSK

TDA Now Has Contracts with Every Major Vaccine Manufacturer

We have exciting news for your practice: TDA has negotiated contracts with GSK, Merck, Sanofi, Pfizer, and Seqirus — meaning we now have relationships across all major vaccine manufacturers. That translates to more flexibility for you to find the contract that fits your practice, your patient volume, and your purchasing patterns.

What Changes for Your Practice

With this expanded portfolio, our team can now help you evaluate whether your current contract is still the best fit — or whether shifting to a different one could better serve your needs. Whether you're trying to optimize savings or simply want to make sure your arrangement still makes sense, we have more options to work with on your behalf.

A Quick Primer on Market Share Requirements

If you have a vaccine contract, it likely includes a market share requirement — the percentage of your total vaccine purchases that must come from the contracted manufacturer. These typically fall somewhere between 70% and 90%.

Here's a simple example: Say your practice purchases 1,000 vaccine doses per year, and your contract requires 70% market share with Manufacturer A. That means at least 700 doses need to come from Manufacturer A, with up to 300 coming from others.

These volume commitments are the mechanism behind the deep discounts TDA negotiates — group leverage that individual practices simply can't access on their own.

We'll Help You Find the Right Fit

If your practice needs have shifted or you have questions about your current contract, reach out. Our clinical lead, Melissa Riggs, or you can schedule a call directly. We're happy to review your situation one-on-one and make sure you're on the arrangement that maximizes your savings.