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

MS. Gabrielle Libby Diener, LGPC, NCC

Individual provider Mental Health Counselor · NPI 1235785767

MS. Gabrielle Libby Diener, LGPC, NCC is a Mental Health Counselor in Columbia, Maryland. Practices as a sole proprietor. Registered with an NPI since 2019.

In the registry since
2019
What do these letters mean?
NCC — National Certified Counselor
A counsellor certified by the NBCC.

See every abbreviation used in this directory →

Practice location Address checks out

5560 Sterrett Pl Ste 201
Columbia, MD 21044-2627
Phone: (443) 546-4000
Fax: (443) 546-4005
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1235785767
Entity typeIndividual (Type 1)
GenderFemale
Credentials LGPC , NCC
Sole proprietorYes
NPI enumeratedAugust 12, 2019
Last updated in NPPESAugust 12, 2019

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