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

Dr. Mary Ann Hartnett, PHD

Individual provider Clinical Social Worker · NPI 1568668515

Dr. Mary Ann Hartnett, PHD is a Clinical Social Worker in Oak Park, Illinois. Qualified in 1989, 37 years ago. Practices as a sole proprietor and works from 2 locations. Licensed in Illinois.

Years since qualifying
37
Licensed in
IL
In the registry since
2007
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1010 Lake St Ste 620
Oak Park, IL 60301-1136
Phone: (708) 359-5225
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 1140 Lake St, Oak Park, IL 60301-1049 — (708) 359-5225

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149.013125 (IL)

Record details

NPI number1568668515
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJune 26, 2007
Last updated in NPPESOctober 4, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Accepts Medicare assignment Not indicated

Other providers in Oak Park