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

John Lewandowski III, PSYD

Individual provider Psychologist · NPI 1104307917

John Lewandowski III, PSYD is a Clinical Psychologist in Crystal Lake, Illinois. Qualified in 2018, 8 years ago. Practices with Pra Behavioral LLC, a 24-clinician group, works from 2 locations and accepts Medicare assignment.

Years since qualifying
8
In the registry since
2018
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

See every abbreviation used in this directory →

Practice location Address checks out

350 E Congress Pkwy Ste C
Crystal Lake, IL 60014-6284
Phone: (815) 356-5050
Fax: (815) 356-5094
Show map & directions

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

Additional practice locations (1)

  • 1701 E Woodfield Rd Ste 1000, Schaumburg, IL 60173-5113 — (847) 240-2211

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X

Record details

NPI number1104307917
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedAugust 29, 2018
Last updated in NPPESAugust 29, 2018

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Pra Behavioral Llc — 24 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Crystal Lake