Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Catherine M Yim, MD

Diagnostic Radiology Physician in Sylmar, CA · enumerated 2006.

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

National Provider Identifier

1821190927

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Registry record

Entity type Individual (Type 1)

Name Dr. Catherine M Yim

Credential MD

Sex Female

Practice address 14445 Olive View Drive, 2d 115 Olive View Medical Center, Sylmar, CA, 91342

Phone (818) 364-4078

Fax (818) 364-4071

Enumeration date Sep 1, 2006

Last updated in NPPES Nov 5, 2008

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License A74155 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00A741550	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 does Catherine Yim practice?

The practice location on file with NPPES is in Sylmar, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Catherine Yim?

The National Provider Identifier (NPI) for Catherine Yim is 1821190927, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Alan Knopf Orthopaedic Surgery Physician · Sylmar, CA NPI 1558355404 Primal Kaur Rheumatology Physician · Sylmar, CA NPI 1851380786 Fredrick Melik-Abrahamian Emergency Medicine Physician · Sylmar, CA NPI 1134159890 Scott Lundberg Emergency Medicine Physician · Sylmar, CA NPI 1770518789 Paul Buzad Obstetrics & Gynecology Physician · Sylmar, CA NPI 1134153331 John Sacoolidge Anatomic Pathology & Clinical Pathology Physician · Sylmar, CA NPI 1447285820 Robert Nishimura Neurology Physician · Sylmar, CA NPI 1265467500 Charles Rosenbaum Specialist · Sylmar,, CA NPI 1134141518

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-05.