David Rowley, who left Huntsworth Health in 2009 after eight years with the firm, said the consultancy would be called Open Health and run by a senior level management team of four founding partners.
The other partners are: Sandy Royden, former head of Europe, Huntsworth Health; Marcus Perry, president of Nitrogen North America, also a Huntsworth Health firm; and Roger Selman, former chief finance director at Huntsworth Health Global.
Open Health is expected to add a further four partners during the next four months.
Rowley said the practice, which will be based in Buckinghamshire, will be the first of its kind, offering the only 'channel neutral' group in the healthcare arena.
He said: 'Our business model is based on what we are calling channel neutral and discipline neutral. We are bringing people in who are at MD level so that we will have a very strong team of experts across various disciplines.'
Chime Communications has funded the start-up of Open Health and will be backing acquisitions to expand the new firm in the future.
As part of the venture, life science and healthcare agency De Facto Communications, which is part of Chime, will join Open Health.
Rowley added: 'Chime has allowed us to finance this start-up with a really strong team ahead of a revenue curve from clients, and then agreeing to back core acquisitions to bring into our business in the future.'