Start up concept shown on a tablet held by a doctor

Starting a medical practice is one of the most demanding financial undertakings in healthcare. Between licensing fees, staffing costs, equipment, electronic health record systems, and clinical supplies, the expenses add up quickly—often before a single patient walks through the door. For physicians, pharmacists, and medical office managers in the early stages of building a practice, finding legitimate, proven ways to reduce recurring operational costs is not just helpful; it is essential for long-term viability.

One of the most underutilized cost-reduction strategies available to new independent practices is participation in a Group Purchasing Organization (GPO). If your practice administers vaccines—and almost every primary care, family medicine, internal medicine, pediatric, or pharmacy setting does—joining the right GPO can translate into immediate, measurable savings from day one.

This guide walks you through what group purchasing is, why it matters for new practices, and how the US Physicians’ Purchasing Group (USPPG) vaccine purchasing program gives independent practices access to the same pricing power as large health systems completely free of charge.

  Key Takeaways:

  • Group Purchasing Organizations (GPOs) pool the buying power of many practices to negotiate discounted pricing that individual practices cannot access alone.
  • USPPG’s vaccine group purchasing program is 100% free to join—no membership fees, no volume minimums, no long-term contracts.
  • USPPG has active contracts with GSK, Pfizer, Moderna, CSL Seqirus, Dynavax, and RabAvert, covering flu, COVID-19, shingles, pneumococcal, RSV, hepatitis, meningococcal, and more.
  • Discounts are applied on-invoice, meaning you see the savings at the time of purchase—no rebate waiting periods.
  • New practices with zero purchase history are welcome; there is no minimum history or volume threshold to qualify.
  • Joining early—before you open—lets you lock in contract pricing before you place your very first vaccine order.

1. What Is a Group Purchasing Organization?

A Group Purchasing Organization (GPO) is an entity that negotiates contracts with manufacturers and distributors on behalf of its member organizations. By aggregating the purchasing volume of many independent buyers into a single collective, GPOs achieve pricing and terms that no individual practice could secure on its own.

In healthcare, GPOs have long been standard operating procedure for hospital systems. Large hospital networks have dedicated supply chain departments and purchasing leverage that commands low pricing from pharmaceutical manufacturers, device companies, and distributors. Independent practices—solo physicians, small group practices, independent pharmacies—historically had no equivalent mechanism. They were forced to pay full catalog prices or rely on the limited discounts offered through local distributors.

GPOs changed that. By giving independent practices a seat at the same negotiating table as large institutions, GPOs democratize purchasing power. Today, a family medicine physician opening a solo practice in a small market can access the same vaccine pricing as a regional health system simply by enrolling in the right GPO.

Important for New Practices: GPO membership is not just for established practices with high purchasing volume. Most GPOs, including USPPG, welcome new practices at any stage—including before you have placed your first vaccine order. The time to join is before you open, not after.

2. Why GPOs Matter for New Medical Practices

When you are building a practice from scratch, every line item in your operating budget matters. The tendency is to focus on the large, obvious costs—space, staff, technology, and to accept smaller recurring costs as fixed. Vaccines are a perfect example of a cost that many new practice owners treat as non-negotiable, simply because they do not know an alternative exists.

The Startup Cost Landscape

Opening an independent medical practice typically involves significant capital outlay across several categories: office build-out or leasehold improvements, furniture and medical equipment, EHR and practice management software licenses, malpractice insurance premiums, DEA and state licensing fees, staff hiring and onboarding, and initial clinical supply inventory, which includes vaccines.

Vaccines are unique among these startup costs for two reasons. First, they represent a significant upfront purchase before you have a patient base to generate revenue. Second, they are a recurring cost. You will purchase vaccines every year for the life of your practice. A cost reduction you secure in year one compounds over every subsequent year of operation.

The Independent Practice Disadvantage

Without GPO membership, a new independent practice pays the same list price as any other low-volume buyer. Manufacturers and distributors offer volume-based pricing tiers. However, a practice seeing 20 to 30 patients per week in its first year will not hit the thresholds that unlock meaningful discounts on its own. This is exactly the gap that a GPO fills.

Collective Leverage

Your practice’s volume is pooled with hundreds of other independent practices, giving you the pricing power of a large system.

On-Invoice Pricing

Savings show up immediately when you place your order—no rebate programs, no waiting for quarterly checks.

No Commitment Required

GPO contracts with manufacturers do not require minimum purchases. You order what you need, when you need it.

Free to Join

Quality GPOs like USPPG charge no membership fees. The savings are immediate and the cost to participate is zero.

3. The Real Cost of Vaccines for an Independent Practice

To understand why GPO vaccine purchasing should be a priority for any new practice, it helps to look at vaccine costs in concrete terms.

Vaccines are among the most expensive clinical supplies a practice purchases, particularly in specialties with active immunization schedules.

High-Cost, High-Volume Vaccines

Certain vaccines account for a disproportionate share of a typical practice’s annual vaccine budget. Shingrix (recombinant zoster vaccine) is a two-dose series commonly administered in primary care, internal medicine, and pharmacy settings. Prevnar (pneumococcal conjugate vaccine) is a standard recommendation for older adults and pediatric patients. Annual influenza vaccines are ordered in large quantities every fall. COVID-19 vaccines, RSV vaccines, and hepatitis vaccines round out the high-volume, high-cost category for most practices.

Without contract pricing, the cumulative annual spend on these vaccines alone can represent a significant portion of a small practice’s clinical supply budget. Even modest percentage reductions—secured through GPO membership—can translate to thousands of dollars in annual savings.

Read more about how vaccine pricing trends are evolving and why proactive purchasing strategies matter now more than ever.

The Importance of Timing

Vaccine purchasing is not simply transactional. Flu vaccines, for example, are typically pre-booked months before the season begins.

Practices that join a GPO late—or that fail to pre-book—may miss contracted pricing windows and pay significantly more for the same products. A vaccine purchasing calendar built around GPO contract timelines is one of the most valuable planning tools a new practice can develop.

Pro Tip for New Practices: Flu vaccine pre-booking windows typically open in late winter or early spring for the following fall season. If you are opening a practice in the first half of the year, enroll in USPPG now so you do not miss the pre-booking window for your first flu season.

Learn more about pre-booking CSL Seqirus flu vaccines through USPPG.

4. USPPG’s Vaccine Group Purchasing Program Explained

The US Physicians’ Purchasing Group (USPPG) is a Group Purchasing Organization specifically built to serve independent medical practices. Unlike enterprise GPOs that are designed for large hospital systems, USPPG focuses exclusively on the needs of independent physicians, independent pharmacies, and the office managers who run them.

How USPPG Works

USPPG acts as the intermediary between independent practices and vaccine manufacturers. By aggregating the collective purchasing volume of its member base, USPPG negotiates discounted contract pricing directly with major vaccine manufacturers. Those contracts are then made available to all USPPG members—at no cost to the member.

When you enroll as a USPPG member and sign the GPO agreement for a given manufacturer, you gain access to that manufacturer’s contracted pricing.

You then order directly from the manufacturer or through an authorized distributor, with the discounted price applied on-invoice at the time of purchase.

There is no rebate system, no delay in savings, and no intermediary markup.

What Makes USPPG Different from Other Purchasing Options

Several purchasing options are technically available to new practices, but most come with significant limitations that make them impractical for smaller or newer operations:

  • Direct manufacturer purchasing (without a GPO): Available to any practice, but pricing reflects individual buying volume—which is low for a new practice. No contract discounts apply.
  • Distributor purchasing (without a GPO): Distributors like McKesson or AmerisourceBergen offer convenience, but their pricing is typically set above manufacturer list price, and discount tiers require substantial volume commitments.
  • State immunization programs (VFC and similar): The Vaccines for Children (VFC) program provides federally-purchased vaccines for eligible patients at no cost to the provider, but coverage is limited to specific patient populations (uninsured, Medicaid-eligible, underinsured, or Native American/Alaska Native children). Privately insured and adult patients are not covered.
  • Hospital system affiliation: Some independent physicians affiliate with hospital systems to access their GPO contracts, but this often comes with administrative overhead, credentialing requirements, and constraints on practice autonomy.
  • USPPG membership: Free, open to any independent practice, no volume requirements, no purchase minimums, on-invoice discounts from leading manufacturers, and simple enrollment.

For independent practices—especially new ones—USPPG’s model is straightforwardly the most accessible and cost-effective option available.

Read more about what to expect when joining a physicians’ purchasing group.

5. Manufacturer Contracts: Who USPPG Works With

One of the most important questions a new practice should ask about any GPO is: which manufacturers are covered? A GPO with a limited manufacturer network may save you money on some vaccines while leaving you exposed on others.

USPPG has built a broad portfolio of manufacturer contracts that covers the vaccines most commonly needed by primary care, family medicine, internal medicine, pediatric, and pharmacy settings.

Here is a breakdown of USPPG’s current manufacturer partners and the vaccines covered under each contract:

Manufacturer Key Vaccines Available at Contract Pricing Learn More
GSK (GlaxoSmithKline) Shingrix (Zoster), Boostrix (Tdap), FluLaval & Fluarix (Influenza), Engerix-B (HepB), Havrix (Hep A) Twinrix (HepA/HepA-HepB), Pediarix (DTaP-HepB-IPV), Kinrix (DTaP-IPV), Infanrix (DTaP) Hiberix (Hib), Rotarix (RV1), Priorix (MMR), Penmnvy (Men ABCWY) Menveo (MenACYW), Bexsero (MenB), Arexvy (RSV) GSK Vaccines
Pfizer Comirnaty (COVID-19), Prevnar 20 (Pneumococcal), ABRYSVO (RSV), Penbraya & Trumenba (Meningococcal) Pfizer Vaccines
Moderna Spikevax (COVID-19) and mRESVIA (RSV) Moderna Vaccines
CSL Seqirus FLUCELVAX (cell-based flu), FLUAD (adjuvanted flu for 65+), and additional seasonal influenza vaccines CSL Seqirus Vaccines
Dynavax Heplisav-B (Adult Hepatitis B, 2-dose series) Dynavax Vaccines
RabAvert RabAvert (Rabies Vaccine) RabAvert

This manufacturer roster covers the vast majority of vaccines on the CDC adult and childhood immunization schedules.

Whether your new practice plans to offer a comprehensive immunization service or simply stock the most commonly requested vaccines, USPPG’s contract portfolio gives you meaningful coverage from day one.

A Closer Look at Key Vaccine Categories

Influenza Vaccines

Flu vaccine purchasing is one of the highest-priority areas for any new practice. Annual volumes are predictable, pre-booking deadlines are firm, and the cost variance between contracted and non-contracted pricing can be meaningful at scale.

USPPG has contracts with both GSK (FluLaval, Fluarix) and CSL Seqirus (FLUCELVAX, FLUAD), giving members flexibility to choose the flu products that best match their patient population.

For new practices approaching their first flu season, understanding the pre-booking process for CSL Seqirus flu vaccines is essential reading.

Shingles Vaccines

Shingrix has become one of the most commonly administered vaccines in adult primary care and pharmacy settings. Because it is a two-dose series and carries a relatively high list price, even modest per-dose savings through USPPG’s GSK contract can add up significantly over a year. See also: USPPG’s Shingrix billing and coding guide for guidance on maximizing reimbursement.

COVID-19 Vaccines

USPPG has contracts with both Pfizer (Comirnaty) and Moderna (Spikevax) for COVID-19 vaccines. As the COVID-19 vaccine landscape continues to evolve with annual updated formulations, having GPO contracts in place with both major mRNA manufacturers ensures your practice is positioned to purchase at contracted pricing regardless of which product is recommended in a given season.

RSV Vaccines

RSV vaccines for older adults represent one of the fastest-growing segments of adult immunization practice. USPPG has contracts with both GSK (Arexvy) and Pfizer (ABRYSVO), covering both approved RSV vaccine options currently on the market.

For practices that see older adult populations, this is a growing revenue and patient care opportunity. Learn more about vaccine-preventable diseases in adults and why immunization rates in this population remain a priority.

Hepatitis B Vaccines

USPPG’s contracts cover both the traditional Engerix-B (GSK) and the newer Heplisav-B (Dynavax) two-dose adult hepatitis B vaccine. Practices serving newborns and pediatric patients will also find GSK’s pediatric Engerix-B formulation in the contract portfolio.

Read more about hepatitis B vaccination in newborn care on the USPPG blog.

6. How to Join USPPG and Start Saving

Enrolling in USPPG is designed to be as simple as possible, with no barriers for new practices. Here is exactly what the process looks like:

  • Complete the USPPG Membership Registration

    Visit members.usppg.org and submit the online enrollment form. This takes only a few minutes. You will receive a confirmation email granting immediate access to member benefits.

  • Review the Vaccine Manufacturer Partners

    Browse the USPPG vaccine purchasing program page to see all current manufacturer contracts. Identify which manufacturers align with your practice’s planned vaccine formulary.

  • Complete the Affiliation Form and GPO Agreement for Each Manufacturer

    Each manufacturer requires a separate GPO agreement. These are straightforward forms that establish your practice’s eligibility for contract pricing. The USPPG team guides you through each one.

  • Begin Ordering at Contract Pricing

    Once your agreements are in place, order directly from the manufacturer or through an authorized distributor such as Medico-Mart, USPPG’s preferred distribution partner. Your contracted discount is applied on-invoice at the time of purchase.

  • Stay Informed and Plan Ahead

    USPPG communicates pre-booking windows, new manufacturer contracts, and program updates to members. Check the USPPG blog regularly and follow USPPG’s yearly vaccine purchasing calendar to stay ahead of ordering deadlines.

Ready to Start Saving on Vaccines?

USPPG membership is completely free. No fees, no volume minimums, no long-term commitments. Join today and start ordering vaccines at negotiated contract pricing from GSK, Pfizer, Moderna, CSL Seqirus, Dynavax, and more.

Become a Member

7. Other Group Purchasing Options to Consider

While USPPG’s vaccine GPO program should be your first enrollment for vaccine cost reduction, a comprehensive purchasing strategy for a new practice may also benefit from awareness of adjacent options.

None of these replace or replicate what a GPO offers for vaccines, but they are worth understanding as you build out your practice’s procurement approach.

State Vaccines for Children (VFC) Program

The VFC program provides federally-funded vaccines at no cost for eligible pediatric patients (uninsured, Medicaid, underinsured, and Native American/Alaska Native children under 19). If you plan to see pediatric patients, enrolling as a VFC provider is a separate, essential step.

VFC does not cover privately insured pediatric patients or any adult patients, so it is complementary to—not a substitute for—GPO purchasing.

317 Immunization Grants

Section 317 of the Public Health Service Act funds state immunization programs, which can sometimes provide vaccines to providers serving underinsured adult populations at reduced cost. Availability varies significantly by state and year. Contact your state health department’s immunization program for current availability.

Medical Supply and Equipment GPOs

Beyond vaccines, GPOs exist for general medical supplies, office equipment, and other practice needs. Some large national healthcare GPOs serve the full spectrum of practice procurement needs. However, many require significant volume commitments or administrative overhead that can be burdensome for new practices. USPPG’s narrower, vaccine-focused model offers a cleaner, lower-friction entry point.

Payment Processing Savings

USPPG has also partnered with USPay to offer members discounted rates on payment processing—another recurring operational cost that adds up over time. For new practices setting up their billing infrastructure, this is worth exploring in combination with the vaccine purchasing program.

8. Building a Smart Vaccine Buying Strategy for Year One

For a practice in its first year, vaccine purchasing strategy should be built around three principles: enroll early, plan by season, and leverage every contract available to you.

Enroll Before You Open

There is no reason to wait until your practice is seeing patients to join USPPG. Enrollment is free and instant, and having your manufacturer GPO agreements in place before you open means you will not miss pre-booking windows or pay list price for your initial vaccine inventory.

Prioritize by Volume and Cost

Not every vaccine in your formulary will carry the same cost-reduction opportunity. Focus your early energy on completing GPO agreements for the manufacturers whose vaccines you will purchase at the highest volume and highest cost.

For most primary care and family medicine practices, this typically means GSK (Shingrix, flu, pediatric vaccines), Pfizer (Prevnar, RSV), and CSL Seqirus (flu).

For pharmacies, Shingrix, flu, COVID-19, and Prevnar are likely the highest-priority contracts.

Use the USPPG Blog as a Purchasing Resource

The USPPG blog publishes timely updates on pre-booking windows, new vaccine approvals, billing and coding guidance, and immunization schedule changes.

For new practices without a dedicated procurement team, this resource is invaluable for staying ahead of purchasing decisions that could otherwise catch you off-guard.

Think About Patient Populations From the Start

The vaccines your practice will administer at the highest volume are directly determined by your patient population. A practice with a significant proportion of patients over 60 will have high demand for Shingrix, Prevnar 20, RSV vaccines, and high-dose flu.

A pediatric practice will prioritize the GSK pediatric portfolio. A pharmacy serving a general adult population will want contracts in place across the full adult immunization schedule. Match your GPO enrollment to your anticipated patient mix from day one. Understanding vaccine-preventable diseases in adults can help you anticipate demand for your specific setting.

  For Medical Office Managers: If you are managing procurement for a physician practice, establishing GPO agreements during the practice setup phase—not after the practice is already operational—is one of the highest-impact administrative actions you can take. The USPPG FAQ page is a helpful resource for understanding the enrollment and ordering process in detail.

9. Frequently Asked Questions

The following questions are commonly asked by physicians, pharmacists, and office managers who are evaluating USPPG and GPO vaccine purchasing for the first time.

What is a Group Purchasing Organization (GPO)?

A Group Purchasing Organization (GPO) is an entity that aggregates the purchasing volume of multiple healthcare providers to negotiate discounted pricing with manufacturers and suppliers. By pooling demand, GPOs give independent practices the same buying leverage as large hospital systems—without requiring high-volume commitments or long-term contracts.

Is there a cost to join USPPG?

No. USPPG membership is completely free. There are no enrollment fees, no monthly dues, no volume commitments, and no long-term contracts. You simply register, sign the GPO agreement with the manufacturers you want to purchase from, and start ordering at discounted prices.

Which vaccine manufacturers does USPPG have contracts with?

USPPG has negotiated group purchasing contracts with GSK, Pfizer, Moderna, CSL Seqirus, Dynavax, and the manufacturer of RabAvert (rabies vaccine). Together, these partnerships cover flu vaccines, COVID-19, pneumococcal, shingles, meningococcal, hepatitis A & B, RSV, Tdap, MMR, DTaP, and more. Visit the USPPG vaccine purchasing program page for the full list.

Can a brand-new practice with no purchase history join USPPG?

Yes. USPPG welcomes practices at every stage, including those that have not yet seen a single patient. There are no minimum purchase requirements, no historical volume thresholds, and no waiting periods. New practices are encouraged to enroll before they open so they can begin ordering at contracted rates from day one.

How do I actually order vaccines after joining USPPG?

After joining USPPG and completing the relevant manufacturer GPO agreements, you order directly from the manufacturer or through an authorized distributor—such as USPPG’s preferred distribution partner, Medico-Mart. Your discounted contract pricing is applied on-invoice, meaning you see the savings immediately at the time of purchase.

How much can a new practice realistically save on vaccines through USPPG?

Savings vary by vaccine, volume, and manufacturer contract terms. Because USPPG negotiates at the GPO level—aggregating demand across hundreds of independent practices—members routinely access pricing that independent practices could not secure on their own.

For high-turnover vaccines like flu, Shingrix, or Prevnar, the cumulative savings over a year can be substantial. For a deeper look at how vaccine costs are trending, read The Future of Vaccine Costs: Trends Medical Practices Should Watch.

Does joining USPPG obligate me to buy a certain quantity?

No. USPPG does not impose purchase minimums, quotas, or commitments. You order what your practice needs, when you need it, at the negotiated contract price.

Can pharmacies and medical office managers join USPPG—or is it only for physicians?

USPPG serves independent medical practices broadly, including physician-owned practices, independent pharmacies, and the office managers who oversee procurement for those settings. If your practice administers vaccines to patients, you are eligible to join. Contact USPPG if you have questions about eligibility for your specific practice type.

What if I have questions during the enrollment process?

The USPPG team is available to guide new members through the enrollment and GPO agreement process. You can reach them by phone at 1-877-MY-USPPG (698-7774), by email at usppg@usppg.org, or through the USPPG contact page. You can also review the USPPG FAQ page for answers to common program questions.

Start Saving on Vaccines Before You See Your First Patient

USPPG membership is free, fast to set up, and available to any independent practice. Join hundreds of independent physicians, pharmacists, and practice managers who are already purchasing vaccines at group contract pricing through USPPG.

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This article is intended for informational purposes for healthcare providers and practice administrators. Vaccine pricing, program availability, and manufacturer contracts are subject to change. Contact USPPG directly for the most current program details.