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

Dr. Holly Marie Costar, PHD

Individual provider Counseling Psychologist · NPI 1245476738

Dr. Holly Marie Costar, PHD is a Counseling Psychologist in Bangor, Maine. Practices as a sole proprietor. Licensed in Maine.

Licensed in
ME
In the registry since
2009
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

6 State St Ste 307A
Bangor, ME 04401-5133
Phone: (207) 517-0017
Show map & directions

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

Specialties & licences

Counseling Psychologist (primary) Taxonomy 103TC1900X · Licence PS1281 (ME)

Record details

NPI number1245476738
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 5, 2009
Last updated in NPPESOctober 24, 2017

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