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

Dr. John J Gnap, MD

Individual provider Mental Health Counselor · NPI 1164572319

Dr. John J Gnap, MD is a Mental Health Counselor in Chicago Ridge, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

10436 SW Hwy Lowr Level Ste 4
Chicago Ridge, IL 60415
Phone: (708) 424-2266
Fax: (708) 424-9763
Show map & directions

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

Specialties & licences

Addiction Medicine (Family Medicine) Physician (primary) Taxonomy 207QA0401X · Licence 036040753 (IL)
Mental Health Counselor Taxonomy 101YM0800X · Licence 036040753 (IL)

Record details

NPI number1164572319
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 11, 2007
Last updated in NPPESMarch 30, 2010
Mailing address10436 Southwest Highway, Lower Level Suite 4, Chicago Ridge, IL 60415

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