Arnold Ostrow MD Inc.
Arnold Ostrow MD Inc. is a healthcare organization registered as Pulmonary Disease Physician in Los Alamitos, CA, holding Type 2 (organization) NPI 1336408657 since 2012. The authorized official on file is Arnold Ostrow, Owner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1336408657 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Arnold Ostrow MD Inc. |
| Practice address | 3771 KATELLA AVE, 300, Los Alamitos, CA, 90720 |
| Phone | 5624307533 |
| Fax | 5624313479 |
| Enumeration date | 2012-05-07 |
| Last updated in NPPES | 2012-05-07 |
Authorized official
| Name | Arnold Ostrow |
|---|---|
| Title | Owner |
| Phone | 5624307533 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RP1001X | Pulmonary Disease Physician | Primary | G16243 | CA |
Copy-ready billing details
Provider: Arnold Ostrow MD Inc. NPI: 1336408657 Taxonomy: 207RP1001X (Pulmonary Disease Physician) Address: 3771 KATELLA AVE, 300, Los Alamitos, CA, 90720
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1396713814 | Cecilia Chu | Individual | Specialist | Los Alamitos, CA |
| 1821066077 | Kathleen Macleod | Individual | Infectious Disease Physician | Los Alamitos, CA |
| 1932147824 | Arnold Ostrow | Individual | Specialist | Los Alamitos, CA |
| 1518902329 | Los Alamitos Imaging Center LLC | Organization | Magnetic Resonance Imaging (MRI) Clinic/Center | Los Alamitos, CA |
| 1942316898 | Leslie M Gonzalez MD Inc | Organization | Obstetrics & Gynecology Physician | Los Alamitos, CA |
| 1881702504 | Stuart Green | Individual | Specialist | Los Alamitos, CA |
| 1295829083 | Raymond Klug | Individual | Orthopaedic Surgery Physician | Los Alamitos, CA |
| 1053468298 | Arnie Bergula | Individual | Adult Reconstructive Orthopaedic Surgery Physician | Los Alamitos, CA |
Verify this record
Cross-check NPI 1336408657 against the authoritative CMS record: view Arnold Ostrow MD Inc. 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
Who is the authorized official for Arnold Ostrow MD Inc.?
What is the NPI number for Arnold Ostrow MD Inc.?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-05-07.