Pharmaceutical Group Purchasing Organizations

Secure discounts and wholesale prices from drug manufacturers, vendors and suppliers for your pharmacy and specialty medical practice through our pharmaceutical GPOs.

Our pharmaceutical group purchasing organization options

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To help your organization succeed, our pharmaceutical GPO models offer your pharmacy and specialty medical practice a broad range of proven, flexible and scalable group purchasing service options. The GPOs leverage the collective strength of pharmacy or specialty medical practice members, ranging from oncology to ophthalmology to urology and more.

As a pharmacy and specialty medical practice customer, you have access to a variety of McKesson-owned and affiliated pharmaceutical GPOs, depending on your unique drug, medical-surgical and laboratory equipment and supply needs.

McKesson-owned pharmaceutical GPOs

GPO Services

Connect your specialty medical practice with leading drug and medical-surgical equipment manufacturers through our GPO Services program. GPO Services offers your practice numerous benefits, including:

  • Access to specialty medications under more than 100 different drug contracts
  • Performance- and non-performance-based rebate and discount opportunities
  • Performance tracking tools for select products
  • Clinical resources that provide practice support

Take advantage of those benefits and improve your profitability by driving cost-reducing operational efficiencies and revenue-generating clinical services.


PACT serves hospitals and health systems and features drug cost control strategies and therapeutic pharmaceutical initiatives. PACT boasts compliant provider members, allowing PACT to negotiate wholesale prices for pharmaceutical products.


Onmark is a pharmaceutical GPO serving the medication needs of community-based medical practices specializing in:

  • Oncology
  • Rheumatology
  • Gastroenterology
  • Ophthalmology
  • Dialysis/nephrology
  • Urology


PlasmaRx, our plasma GPO, leverages the collective purchasing power of our hospital and health systems customers to procure high-quality intravenous immunoglobulin (IVIG), albumin and blood factor products at competitive prices.

Pathway Purchasing Network

As the leading specialty product purchasing organization dedicated to Ig and factor products, Pathway helps specialty and home infusion pharmacies get patients on therapy quickly, control costs and optimize reimbursement. Pathway also supports pharmaceutical manufacturers in driving value and differentiation for the brand and volume that impacts their bottom line.