End of an era for one of South Africa’s largest medical aids next week

 ·27 May 2026

Bonitas Medical Fund will implement new administration and managed care arrangements from 1 June, with Momentum Health taking over the administration of the fund.

Momentum will take over the administration from Medscheme, which will end a 43-year-long partnership.

“Being selected as the preferred healthcare administration partner for Bonitas Medical Fund affirms our leadership in the health administration market,” Momentum Group CEO Jeanette Marais previously said.

“It results in the biggest transfer of a medical scheme from one provider to another in the history of South Africa.”

The transaction will add over 750,000 beneficiaries to Momentum’s administration and shift its market share from 22% to 30%.

Private Health Administrators (PHA), which runs Bonitas’ lower-cost benefit option, Boncap, will continue to work with the scheme, having done so since 2020.

Bonitas has been under pressure from the Council of Medical Schemes (CMS), with an investigation over alleged governance failures.

Regarding the Momentum move, Bonitas said that the healthcare environment is evolving, shaped by growing financial pressure on consumers, complex healthcare needs and rising digital expectations.

In response, Bonitas will introduce new changes that form part of a broader strategy to strengthen the scheme’s long-term sustainability and responsiveness to members and stakeholders.

Bonitas is one of the nation’s largest medical schemes, and its latest operational transition is aimed at ensuring its operating model aligns with changing realities in the healthcare market.

“This is not change for the sake of change. Healthcare needs are evolving, consumer expectations are changing, and the pressures facing South Africans are intensifying,” said Principal Officer, Lee Callakoppen.

“To remain relevant and continue delivering value, healthcare organisations need to become more agile, responsive and better equipped to meet the demands of a rapidly evolving environment.”

Callakoppen added that healthcare funders, administrators and managed care organisations have traditionally moved at a measured pace.

However, the current environment requires faster innovation and a focus on creating value for members.

The transition followed an extensive process undertaken by the scheme to evaluate how its operating model could best support growth.

What the change means for members

Bonitas Principal Officer – Lee Callakoppen

“We have a responsibility to ensure we remain responsive to changing market realities while always acting in the best interests of our members,” said Callakoppen.

“That means partnering with organisations like Momentum and PHA that can strengthen capability, unlock innovation and support a more future-fit healthcare ecosystem.”

Bonitas said that the operational transition is expected to improve experiences for members, healthcare providers, brokers and employer groups.

This includes more streamlined digital processes, simplified communication and service touchpoints.

Bonitas also expects the transition to enhance broker functionality through integrated digital tools, consolidated contribution and reconciliation processes and strengthened servicing capability.

It also expects improved collaboration across administration and managed care functions. “The care remains the same; what we are strengthening is the system behind it,” added Callakoppen.

It believes it will be applicable to changes in the healthcare market, which is being shaped by affordability, evolving disease patterns, regulatory complexities, and changing consumer habits.

“We understand that while we take steps to ensure that our stakeholders have a positive experience, ultimately it is their input and buy-in which helps drive success.”

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