NPPES file of Aug 9, 2026

Lamark Johnson, CADC

Addiction (Substance Use Disorder) Counselor · Chicago, IL

Lamark Johnson, CADC is an addiction (substance use disorder) counselor with a practice address in Chicago, Illinois, and NPI 1023514189, issued on Apr 5, 2018. Check the license (Illinois 23765, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023514189
Name
Lamark Johnson
Credential
CADC
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
23765 IL
Self-reported in NPPES; status is on the state search
Practice location
8000 S Racine Ave, Chicago, IL 60620
Phone
(773) 966-0255
Enumerated
Apr 5, 2018
Record last updated
Apr 5, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(773) 994-6024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest addiction (substance use disorder) counselor records → All 1,195 in Illinois → Look up another NPI →

Also registered at 8000 S Racine Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Darla Davis, CADCAddiction (Substance Use Disorder) Counselor1023515111
  2. Marilyn Starks, CADCAddiction (Substance Use Disorder) Counselor1376049452

Verify Lamark Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 23765    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Lamark Johnson among 1,195 addiction (substance use disorder) counselor records in Illinois

Lamark Johnson, CADC is one of 1,195 addiction (substance use disorder) counselor records with a practice address in Illinois. 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2018, is newer than 53% of them.

  • NPI issued2018 · 53% of these records are older, 39% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 3% of these records are
  • Record last updated2018 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction (Substance Use Disorder) Counselor providers in Illinois

There are 1,195 addiction (substance use disorder) counselor records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,195 in Illinois → Every provider in Chicago → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Darla Davis, CADCChicago, IL 606201023515111
  2. Faith JeffersonChicago, IL 606201871995217
  3. Marilyn Starks, CADCChicago, IL 606201376049452
  4. Joseph Winford, MS. CADCChicago, IL 606201811660640
  5. Carlton Ferguson, CADC #31124Chicago, IL 606211407677941
  6. Delores Highley-Lane, CADC, BAChicago, IL 606191710754247
  7. Nita MarchantChicago, IL 606211235689662
  8. Shannon Woods, CADCChicago, IL 606191548101777

Common questions

What is Lamark Johnson, CADC's NPI number?

Lamark Johnson, CADC's National Provider Identifier (NPI) is 1023514189, issued on Apr 5, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Lamark Johnson, CADC located?

The NPPES record lists a practice address at 8000 S Racine Ave, Chicago, IL, 60620. Phone: (773) 966-0255. Providers update this record themselves, so call before visiting.

How can I verify Lamark Johnson, CADC's license?

NPPES lists Illinois license number 23765, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.