Dr. Hartman became my periodontist over a year ago when my former periodontist retired. I have been to him numerous times for perio treatment, surgery and maintenance. Dr. Hartman is extremely personable and works well with adults and children. He is extremely knowledgeable and makes me feel very relaxed when I visit his office. Dr. Hartman maintains an ongoing relationship with my dentist and endodontist in coordinating a multi-faceted treatment plan for my teeth and gums. His office files my insurance claims which are nearly all paid at 100%. I especially like that Dr. Hartman has a solo practice, so I only have to see one dentist when I go. I recommend Dr. Hartman without reservation! NK