Individual provider · Type 1 NPI

John Diehl, MS

Mental Health Counselor · West Sayville, NY

NPI number 1619187101 Active

About NPI 1619187101

John Diehl, MS's National Provider Identifier is 1619187101, issued on May 23, 2007. The primary taxonomy on file is Mental Health Counselor (101YM0800X), and the practice location is in West Sayville, NY. The record was last updated on Jul 8, 2007.