John Michael Maddock, LCSW
John Michael Maddock is a Clinical Social Worker provider (Social Worker) practicing in Seaside, CA, registered in the NPPES registry with NPI 1053351072 since 2006. The credential LCSW stands for Licensed Clinical Social Worker.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1053351072 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John Michael Maddock |
| Credential | LCSW |
| Sex | Male |
| Practice address | 3401 ENGINEER LN, Seaside, CA, 93955 |
| Phone | 8318833805 |
| Fax | 8318833860 |
| Enumeration date | 2006-06-07 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1041C0700X | Clinical Social Worker | Primary | LCS 17055 | CA |
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: John Maddock, LCSW NPI: 1053351072 Taxonomy: 1041C0700X (Clinical Social Worker) Address: 3401 ENGINEER LN, Seaside, CA, 93955
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1801849955 | Dean Germer | Individual | Psychiatry Physician | Seaside, CA |
| 1144276932 | Michael Kang | Individual | Internal Medicine Physician | Seaside, CA |
| 1306892021 | Eric Allen | Individual | Family Medicine Physician | Seaside, CA |
| 1558318154 | Darcie Henning | Individual | Clinical Social Worker | Seaside, CA |
| 1124065685 | Norman Gross | Individual | Internal Medicine Physician | Seaside, CA |
| 1265474027 | Nina Yi | Individual | Psychiatry Physician | Seaside, CA |
| 1699700344 | David Ang | Individual | Internal Medicine Physician | Seaside, CA |
| 1801812177 | Kristin Collins | Individual | Physical Therapist | Seaside, CA |
Verify this record
Cross-check NPI 1053351072 against the authoritative CMS record: view John Michael Maddock 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
What is the NPI number for John Maddock?
Where does John Maddock practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.