Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc J. Girsky, MD INC

Clinical Cardiac Electrophysiology Physician in Los Angeles, CA · enumerated 2005.

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

National Provider Identifier

1215921044

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Marc J. Girsky

Credential MD INC

Sex Male

Practice address 1400 S Grand Ave, Suite 615, Los Angeles, CA, 90015

Phone (213) 748-0110

Fax (213) 748-0160

Enumeration date Sep 8, 2005

Last updated in NPPES Mar 12, 2012

Taxonomy & licenses

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License G83112 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
P00464615	Other	CA	MEDICARE RAILROAD
00G831120	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

What specialty is Marc Girsky?

Marc Girsky is registered in NPPES with the primary taxonomy of Clinical Cardiac Electrophysiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-12.