Mark Glenn Willoughby is an addiction (substance use disorder) counselor in El Monte, CA. Mark Glenn Willoughby NPI is 1174038756. The provider is registered as an individual entity type.
The NPPES NPI record indicates the provider is a male.
The provider's business location address is:
3430 COGSWELL RD
EL MONTE, CA
ZIP 91732-785
Phone: (626) 453-3400
The enumeration date for this NPI number is 12/5/2017 and was last updated on 12/5/2017.