Apollo Medical Holdings Inc. announced Thursday the resignation of Chief Financial Officer Mitch Creem as well as changes in its board.

Creem will leave the Glendale-based integrated health care management firm to become chief executive at Integrity Healthcare, a management firm created by New-York-based investment company BlueMountain Capital Management to oversee operations for the Daughters of Charity Health System, a regional system of six California hospitals. ApolloMed’s current Controller William Abbott will serve as interim chief financial officer while the company searches for a permanent CFO.

The company has hired executive search firm Spencer Stuart to assist in the search.

Also, attorney Lance Jon Kimmel resigned from Apollo’s board to become the company’s outside general counsel. Moving forward, the board will be reduced to five members with most continuing to be independent directors. The Nasdaq Capital Market conditionally approved ApolloMed to list its common stock on the electronic exchange in May with this stipulation.

Apollo shares closed unchanged at $6.05 with no shares trading hands on the Nasdaq.