Cheryl L Jern specializes in clinical social worker in Petaluma area. Cheryl L Jern, CSW has a medical practice at # 7 Fourth St, Suite 13, Petaluma CA, and has over 43 years of experience in the field of medicine. She graduated from her medical school with her medical degree in 1974. Jern is accepting new patients at her medical office and practice location in Petaluma, California.