A West Coast hospital chain has agreed to acquire Portland-based Zoom Care, in a move that will likely bring stability to the chain of neighborhood clinics.

Executives would not discuss the financial terms of the merger announced Tuesday. The companies’ leadership would remain separate, they said. But it is unclear whether the charismatic CEO Dave Sanders will remain with Zoom after the deal is completed.

PeaceHealth, founded in Vancouver, operates clinics and laboratories in Oregon, Washington and Alaska. The health system generated revenue of $2.2 billion in 2016 and employs about 16,000. Besides its major hospital in Springfield, the company operates Sacred Heart University in Eugene and PeaceHealth Southwest Medical Center in Vancouver.

Leaders with the company said that Zoom’s “on-demand” medical care business model is a good fit for PeaceHealth, which delivers a more traditional hospital experience.

“The addition of Zoom to PeaceHealth’s networks accelerates our vision of ensuring greater health care accessibility and affordability in our communities while increasing our ability to meet the on-demand needs of today’s consumer,” said Liz Dunne, PeaceHealth president and chief executive officer.

Zoom Care, founded by two doctors in 2006, quickly expanded to 37 clinics in Oregon and Washington. The clinics are typically small storefront-style spaces with the feel of an Apple store. Patients usually book appointments online or on a mobile app for the same day or in the next few days.

Though officials touted the success of the neighborhood clinic model, an ill-fated foray into health insurance proved disastrous. Financial documents didn’t add up and led to the demise of the Zoom Health Plan, as well as state and federal investigations last year.

Zoom’s financial wellbeing again came into question in 2017, when a major investor filed a breach of contract lawsuit that claimed Zoom Care was insolvent and that a disagreement over replacing a board member had caused any action to stall.

But the two companies settled their differences and Zoom was given another round of capital investment.

PeaceHealth made its own headlines last year when it laid off 500 workers after a deal to sell its outreach laboratory services to a New Jersey company.

PeaceHealth has said it wants Zoom Care to continue to expand. Zoom’s Sanders said that includes more locations in Portland and Seattle. The existing clinics in 2017 saw about 20,000 patients a month, generating about $50 million in annual revenue.

“We haven’t really even touched the (other markets) in the I-5 corridor,” Sanders said.

Zoom will have a separate board of directors from PeaceHealth, which should be in place by early 2019.

Officials said Tuesday that existing customers shouldn’t be affected by the merger.

The deal is expected to close Dec. 31.