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

MS. Mary Ann Karstens, PHD

Individual provider Professional Counselor · NPI 1154508885

MS. Mary Ann Karstens, PHD is a Professional Counselor in Orland Park, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2008
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

15040 S Ravinia Ave Ste 49
Orland Park, IL 60462-3194
Phone: (708) 349-4455
Fax: (708) 349-6448
Show map & directions

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

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 149005827 (IL)

Record details

NPI number1154508885
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 24, 2008
Last updated in NPPESMarch 26, 2009

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