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

Individual provider Mental Health Counselor · NPI 1750232484

Irene Katherine Kostelos, LMHC is a Mental Health Counselor in Marlborough, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2026
What do these letters mean?
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

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Practice location Address checks out

12 Andrews Rd
Marlborough, MA 01752-1359
Phone: (508) 596-7975
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence LMH10003735 (MA)

Record details

NPI number1750232484
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMHC
Sole proprietorYes
NPI enumeratedFebruary 9, 2026
Last updated in NPPESFebruary 9, 2026
Certification dateFebruary 8, 2026

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