Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Joan Diaz

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1285041426

Joan Diaz is an Addiction (Substance Use Disorder) Counselor in Wilmington, Delaware. Registered with an NPI since 2014.

In the registry since
2014

Practice location Address checks out

2713 Lancaster Ave
Wilmington, DE 19805-5220
Phone: (302) 656-2348
Fax: (302) 656-0746
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1285041426
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJuly 21, 2014
Last updated in NPPESJuly 21, 2014
Mailing address2713 Lancaster Ave, Wilmington, DE 19805-5220

Other providers in Wilmington