Robert Hemker has announced his retirement as president and CEO of Palomar Health.

In a statement Hemker said he’s stepping down to spend more time with family.

Palomar Health’s board appointed Diane Hansen as the interim president and chief executive officer, a role she started Nov. 7. Hansen has been the hospital system’s executive vice president of finance for the past three years and has more than 20 years of health care finance experience.

Hemker has been with Palomar Health for 16 years. In 2014 he was appointed to the top spot.

The board will conduct a national search to find his replacement.