Nathan H. Oliver
Nathan H. Oliver is a Clinical Social Worker provider (Social Worker) practicing in Pasadena, CA, registered in the NPPES registry with NPI 1891944385 since 2008.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1891944385 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Nathan H. Oliver |
| Sex | Male |
| Practice address | Pasadena, CA, 91107 |
| Phone | 6262968900 |
| Enumeration date | 2008-09-09 |
| Last updated in NPPES | 2023-12-12 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 104100000X | Social Worker | Secondary | ACSW96740 | CA |
| 1041C0700X | Clinical Social Worker | Primary | ACSW96740 | CA |
Copy-ready billing details
Provider: Nathan Oliver NPI: 1891944385 Taxonomy: 1041C0700X (Clinical Social Worker) Address: Pasadena, CA, 91107
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1417082371 | Eugenia Rodriguez | Individual | Marriage & Family Therapist | Pasadena, CA |
| 1780706770 | Stephanie Bennett | Individual | Marriage & Family Therapist | Pasadena, CA |
| 1508065699 | Lydell Hill | Individual | Day Training/Habilitation Specialist | Pasadena, CA |
| 1982896007 | John Vangerov | Individual | Marriage & Family Therapist | Pasadena, CA |
| 1033304845 | Sheila Alfaro | Individual | Clinical Social Worker | Pasadena, CA |
| 1215106562 | Carlos Biel | Individual | Day Training/Habilitation Specialist | Pasadena, CA |
| 1154634491 | Diana Alvarado | Individual | Marriage & Family Therapist | Pasadena, CA |
| 1558670984 | Rita Elkaddoum | Individual | Marriage & Family Therapist | Pasadena, CA |
Verify this record
Cross-check NPI 1891944385 against the authoritative CMS record: view Nathan H. Oliver 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
Is NPI 1891944385 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-12-12.