Humana is doubling down on senior primary care — with a new financial heavyweight in its corner. The insurer announced a $2.8 billion joint venture with BlackRock, one of the world's largest investment firms, which will acquire a majority stake in nearly 150 CenterWell Senior Primary Care clinics. The move replaces an existing arrangement with private equity firm Welsh, Carson, Anderson & Stowe (WCAS), which had backed the clinics since 2020.

For Humana, the switch isn't just about swapping partners — it's a strategic financial reset. The new deal eliminates a costly "put option" that previously obligated Humana to buy back WCAS's equity stake at a set price. Instead, CenterWell gains the option (not the obligation) to purchase clinics from the joint venture starting in 2028, giving the company far more flexibility. Humana says the deal will not impact its 2026 earnings forecast.

By the Numbers:

• $2.8B — valuation of BlackRock's stake in the CenterWell clinics
• ~150 — CenterWell clinics covered under the new joint venture
• 350+ — total senior primary care locations Humana operates across CenterWell and Conviva brands
• 2028 — earliest CenterWell can begin buying back clinics from the joint venture
• 2033 — deadline by which BlackRock can exit if clinics remain unsold

Why it matters: This deal signals growing Wall Street appetite for senior-focused primary care as a long-term investment. For patients, Humana says there will be no changes to care. For the broader healthcare system, it reflects a continuing trend of insurers partnering with financial institutions to scale value-based care models for aging populations.