James Haim I. Bicher (born May 12, 1937) is an American radiation oncologist.

He was born in San Cristóbal, Santa Fe, Argentina and is a researcher in the clinical use of hyperthermia combined with low dose (protracted) radiation therapy (thermoradiotherapy).

Bicher was a student of Bernardo Alberto Houssay, and one of the contributors to the basic principles that allowed later development of Plavix.

In 2006, in response to a new accusation, Bicher admitted no wrongdoing but agreed to have his probationary period extended by two years.

In 2009, an Administrative Law judge granted Bicher's requested to have his probationary period terminated early.