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

Dr. Mark J Johns, PSYD, CADC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1437120680

Dr. Mark J Johns, PSYD, CADC is a Mental Health Counselor in Park Ridge, Illinois. Qualified in 2006, 20 years ago. Works from 2 locations. Licensed in Illinois.

Years since qualifying
20
Licensed in
IL
In the registry since
2006
Specialties on file
3
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.
CADC — Certified Alcohol and Drug Counselor
A certified addiction counsellor.

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Practice location Address checks out

350 S Northwest Hwy Ste 300
Park Ridge, IL 60068-4262
Phone: (773) 502-8252
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3948 N Sheridan Rd, Chicago, IL 60613-2935 — (773) 502-8252

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 180.001399 (IL)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 1683 (IL)
Mental Health Counselor Taxonomy 101YM0800X · Licence 180.001399 (IL)

Record details

NPI number1437120680
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD , CADC
Sole proprietorNo
NPI enumeratedJanuary 27, 2006
Last updated in NPPESJuly 10, 2024
Certification dateJuly 10, 2024

Medicare enrollment

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

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Accepts Medicare assignment Not indicated

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