Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Bryan Cassim Doo, M.D., A Medical Corporation

Medical Specialty Clinic/Center in Whittier, CA · enumerated 2007 · authorized official Bryan Doo, President.

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

National Provider Identifier

1962617332

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Bryan Cassim Doo, M.D., A Medical Corporation

Practice address 9209 Colima Rd, Suite 4500, Whittier, CA, 90605

Phone (951) 278-5590

Fax (951) 272-9924

Enumeration date May 11, 2007

Last updated in NPPES Aug 4, 2011

Taxonomy & classification

261QM2500X Medical Specialty Clinic/Center Ambulatory Health Care Facilities · License A65648 (CA) Primary

Authorized official

Name Bryan Doo

Title President

Phone (951) 278-5590

Other identifiers

Identifier	Type	State	Issuer
00A656480	Medicaid	CA	-

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 Bryan Cassim Doo, M.D., A Medical Corporation located?

The practice location on file with NPPES is in Whittier, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-08-04. 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 2011-08-04.