NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Pacific Breast Institute Medical Group

Ambulatory Surgical Clinic/Center in Pomona, CA · enumerated 2014 · authorized official Ossama Ascha, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1619380896

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Pacific Breast Institute Medical Group
Other name <Unavail>
Parent organization O D Ascha,MD Apc
Practice address 350 Vinton Ave, Suite 202, Pomona, CA, 91767
Fax (909) 629-4755
Enumeration date Jun 5, 2014
Last updated in NPPES Jun 5, 2014

Taxonomy & classification

261QA1903X Ambulatory Surgical Clinic/Center Ambulatory Health Care Facilities · License A26396 (CA) Primary

Authorized official

Name Ossama Ascha
Title President

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 → Validate an NPI →

Frequently asked questions

Where is Pacific Breast Institute Medical Group located?
The practice location on file with NPPES is in Pomona, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-06-05. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-05.