Thc - Orange County, LLC
Thc - Orange County, LLC is a healthcare organization registered as General Practice Physician in Ontario, CA, holding Type 2 (organization) NPI 1578795738 since 2009. The authorized official on file is Mostafa Darvish, Executive Director.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1578795738 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Thc - Orange County, LLC |
| Practice address | 550 N MONTEREY AVE, Ontario, CA, 91764 |
| Phone | 9093910333 |
| Fax | 9093912892 |
| Enumeration date | 2009-08-20 |
| Last updated in NPPES | 2018-07-19 |
Authorized official
| Name | Mostafa Darvish |
|---|---|
| Title | Executive Director |
| Phone | 7148934541 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | Primary | — | — |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| HSP30041K | Medicaid | CA | — |
| ZZZ94036Z | Other | CA | BLUE CROSS |
Copy-ready billing details
Provider: Thc - Orange County, LLC NPI: 1578795738 Taxonomy: 208D00000X (General Practice Physician) Address: 550 N MONTEREY AVE, Ontario, CA, 91764
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1043395742 | Thc - Orange County, LLC | Organization | Long Term Care Hospital | Ontario, CA |
| 1932227626 | Brian Lee | Individual | General Practice Physician | Ontario, CA |
| 1508085465 | Usha Sachdev | Individual | Psychiatry Physician | Ontario, CA |
| 1437303419 | Helton Anesthesia A Medical Corporation | Organization | Surgery Physician | Ontario, CA |
| 1497084792 | Knd Development 59, LLC | Organization | Hospitalist Physician | Ontario, CA |
| 1992010284 | Christina Williams | Individual | Speech-Language Pathologist | Ontario, CA |
| 1689918930 | Tiffany Richardson | Individual | Occupational Therapist | Ontario, CA |
| 1184176703 | Jessica Cheng | Individual | Student in an Organized Health Care Education/Training Program | Ontario, CA |
Verify this record
Cross-check NPI 1578795738 against the authoritative CMS record: view Thc - Orange County, LLC 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 Thc - Orange County, LLC?
Who is the authorized official for Thc - Orange County, LLC?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-07-19.