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MARC J GIRSKY MD INC
NPI 1528268133
Internal Medicine - Clinical Cardiac Electrophysiology in Los Angeles, CA

Active since July 21, 2007
1400 S GRAND AVE, #615, LOS ANGELES, CA 90015(213) 248-0110 Get Directions Write a Review

NPPES record last updated: May 21, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Marc J Girsky Md Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARC J GIRSKY MD INC (NPI 1528268133) is a healthcare organization registered as a clinical cardiac electrophysiology in Los Angeles, California and active in the NPI registry since July 2007. The organization lists Marc J Girsky, President, as its authorized official.

NPPES Registry Identity

NPI1528268133
Entity TypeOrganization
Primary Taxonomy207RC0001X
Legal Business NameMARC J GIRSKY MD INC
Location Address1400 S GRAND AVE, #615Los Angeles, CA 90015-3048
Mailing Address1111 S Grand Ave, #1213Los Angeles, CA 90015-2176 · (213) 747-1333
Phone(213) 248-0110
Organization SubpartNo
Authorized OfficialMarc J GirskyPresident · (213) 747-1333
Enumeration DateJuly 21, 2007
Last NPPES UpdateMay 21, 2008
✔ NPI 1528268133 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Clinical Cardiac ElectrophysiologyAllopathic & Osteopathic Physicians
Taxonomy Code207RC0001X
License✔ Licensed in CA · G83112
Definition
A field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.
1400 S GRAND AVE, Los Angeles, CA 90015
Open in Google Maps ↗

Other Identifiers 3

Medicaid00G831120CA
OtherP00464615CA · Medicare Railroad
Medicare PINW21104CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marc J Girsky Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by January 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20071012000364Non-DME Part B · Clinic/Group PracticeDue dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Marc J Girsky MD Inc, which bills Medicare for the services this clinician delivers.

Clinician (1)

Marc Girsky, MD INC
Cardiovascular Disease (Cardiology)
NPI 1215921044
1400 S GRAND AVE SUITE 615
Los Angeles, CA 90015
(213) 748-0110
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marc J Girsky MD Inc's NPI number?

The NPI number for Marc J Girsky MD Inc is 1528268133. It was assigned to this organization in the NPPES registry on July 21, 2007.

Where is Marc J Girsky MD Inc located?

Marc J Girsky MD Inc is located at 1400 S Grand Ave #615, Los Angeles, CA 90015. The listed phone number is (213) 248-0110.

What is Marc J Girsky MD Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.

Is Marc J Girsky MD Inc enrolled in Medicare?

Yes. Marc J Girsky MD Inc is registered in the Medicare PECOS enrollment system.

When is Marc J Girsky MD Inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Marc J Girsky MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Marc J Girsky MD Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Marc J Girsky MD Inc was last updated on May 21, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.