John Calderon
John Calderon is a Addiction (Substance Use Disorder) Counselor provider (Counselor) practicing in Van Nuys, CA, registered in the NPPES registry with NPI 1912195199 since 2007. Practices at Western Pacific Med-Corp (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1912195199 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John Calderon |
| Sex | Male |
| Practice address | Van Nuys, CA, 91401 |
| Phone | 8189891996 |
| Fax | 8189898056 |
| Enumeration date | 2007-10-12 |
| Last updated in NPPES | 2026-05-31 |
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 | Primary | — | — |
Copy-ready billing details
Provider: John Calderon NPI: 1912195199 Taxonomy: 101YA0400X (Addiction (Substance Use Disorder) Counselor) Address: Van Nuys, CA, 91401
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1235272196 | Western Pacific Med-Corp | Organization | Methadone Clinic | Van Nuys, CA |
| 1376757880 | Arthur Poordawood | Individual | Addiction (Substance Use Disorder) Counselor | Van Nuys, CA |
| 1720390594 | Margarita Martirosyan | Individual | Addiction (Substance Use Disorder) Counselor | Van Nuys, CA |
| 1174905053 | John Miller | Individual | Addiction (Substance Use Disorder) Counselor | Van Nuys, CA |
| 1326696584 | Jennifer Zelaya | Individual | Licensed Vocational Nurse | Van Nuys, CA |
| 1578214664 | Dolores Finley | Individual | Licensed Vocational Nurse | Van Nuys, CA |
| 1891419388 | Sofia Lomeli | Individual | Licensed Vocational Nurse | Van Nuys, CA |
| 1922864172 | James Hall | Individual | Addiction (Substance Use Disorder) Counselor | Van Nuys, CA |
Verify this record
Cross-check NPI 1912195199 against the authoritative CMS record: view John Calderon 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 2026-05-31.