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

Derek Libby, CADC, MHRTC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1912685975

Derek Libby, CADC, MHRTC is an Addiction (Substance Use Disorder) Counselor in Chelsea, Maine. Practices as a sole proprietor. Licensed in Maine.

Licensed in
ME
In the registry since
2023
What do these letters mean?
CADC — Certified Alcohol and Drug Counselor
A certified addiction counsellor.

See every abbreviation used in this directory →

Practice location Address checks out

21 Partridge Pl
Chelsea, ME 04330-1296
Phone: (603) 204-4919
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 · Licence CAC8536 (ME)

Record details

NPI number1912685975
Entity typeIndividual (Type 1)
GenderMale
Credentials CADC , MHRTC
Sole proprietorYes
NPI enumeratedJuly 10, 2023
Last updated in NPPESJuly 10, 2023
Certification dateJuly 10, 2023
Mailing address21 Partridge Pl, Chelsea, ME 04330-1296