Dr. Jeffrey Kleis DPM is a national speaker on laser treatment for nail fungus and has trained doctors worldwide on how to use laser technology in podiatry. He has spoken at medical conferences across the United States and Canada on laser treatment of nail fungus and was featured in a training video for European doctors. Full service Costa Mesa Podiatry office Jeffrey Kleis DPM, Inc., is the only location in Orange County, California to offer three types lasers for fungal nail treatment.