Mr. David Allen Johnson, MSW, LCSW, LCAC,MAC
Mr. David Allen Johnson is a Clinical Social Worker provider (Social Worker) practicing in Matteson, IL, registered in the NPPES registry with NPI 1811223407 since 2009. The credential LCSW stands for Licensed Clinical Social Worker.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1811223407 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. David Allen Johnson |
| Credential | MSW, LCSW, LCAC,MAC |
| Sex | Male |
| Practice address | Matteson, IL, 60443 |
| Phone | 7087472655 |
| Fax | 7087472655 |
| Enumeration date | 2009-11-02 |
| Last updated in NPPES | 2025-08-14 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 101YA0400X | Addiction (Substance Use Disorder) Counselor | Secondary | 87000461A | IN |
| 104100000X | Social Worker | Secondary | 33007055A | IN |
| 1041C0700X | Clinical Social Worker | Primary | 149.028252 | IL |
LCSW — Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential
Copy-ready billing details
Provider: David Johnson, MSW, LCSW, LCAC,MAC NPI: 1811223407 Taxonomy: 1041C0700X (Clinical Social Worker) Address: Matteson, IL, 60443
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1346664372 | Edria Johnson | Individual | Clinical Social Worker | Matteson, IL |
| 1245722388 | Deslynne Roberts | Individual | Clinical Social Worker | Matteson, IL |
| 1265069603 | Lauren Cobb | Individual | Mental Health Counselor | Matteson, IL |
| 1043847486 | Omari Norman | Individual | Mental Health Counselor | Matteson, IL |
| 1275160673 | Katrina Mixson | Individual | Community Health Worker | Matteson, IL |
| 1063035145 | Terrence Williams | Individual | Mental Health Counselor | Matteson, IL |
| 1790399012 | Charlene Carter | Individual | Social Worker | Matteson, IL |
| 1801401658 | Kristina Zandi | Individual | Social Worker | Matteson, IL |
Verify this record
Cross-check NPI 1811223407 against the authoritative CMS record: view Mr. David Allen Johnson on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-08-14.