2026 NPPES data Clinical Cardiac Electrophysiology Physician NPI 1215921044 MD INC
Verify on CMS →

MARC GIRSKY, MD INC

Clinical Cardiac Electrophysiology Physician in LOS ANGELES, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
944
Medicare Part D claims · 172 beneficiaries · Clinical Cardiac Electrophysiology Physician avg: 2K
MIPS score
0/100
▼ 83 pts below national avg 83.1 · [object Object]
Industry payments
$4.8K
74 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARC GIRSKY, MD INC is a Clinical Cardiac Electrophysiology Physician ([object Object]) practicing in LOS ANGELES, California with a Medicare Part D prescribing footprint of 944 claims across 172 beneficiaries . Their CMS MIPS Final Score of 0/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $4.8K across 74 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARC GIRSKY, MD INC reported a CMS MIPS final score of 0 out of 100, below the 83.1 national average, and filed 944 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARC GIRSKY, MD INC practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

MARC GIRSKY, MD INC at a glance

Below national average

NPI registry status

Active

Issued 09/08/2005

NPI 1215921044

Primary specialty

Clinical Cardiac Electrophysiology Physician

Niche

1,570 US NPIs in this specialty

Medicare Part D claims

944 41% vs specialty avg

2023 prescription claims

Specialty avg: 1,596

MIPS final score

0/100 83.1% pts

Penalty band band

vs 83.1 national avg

Specialty distribution in California

How Clinical Cardiac Electrophysiology Physician compares to other specialties among California providers

California providers

Clinical Cardiac Electrophysiology Physician share within California

1. Clinical Cardiac Electrophysiology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Clinical Cardiac Electrophysiology Physician share within California

Medicare quality performance — MIPS

MARC GIRSKY, MD INC's 2023 MIPS final score plotted against the Clinical Cardiac Electrophysiology Physician national average

Below national average
MIPS Final Score
0/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Clinical Cardiac Electrophysiology Physician) — 0/100 vs national avg 83.1

0%100%National avg83%0%
MIPS final score (Clinical Cardiac Electrophysiology Physician) — 0/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MARC GIRSKY, MD INC is a Clinical Cardiac Electrophysiology Physician provider practicing in LOS ANGELES, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD INC. NPI: 1215921044. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MARC GIRSKY, MD INC appears in the CMS NPPES registry as a Clinical Cardiac Electrophysiology Physician provider holding MD INC credentials at 1400 S GRAND AVE, LOS ANGELES, CA, 90015, with a listed phone of (213) 748-0110. NPI 1215921044 was issued on 09/08/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GIRSKY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 944 prescription claims written by this provider, covering 172 Medicare beneficiaries and totaling roughly $154K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.

Clinical Cardiac Electrophysiology Physician is a narrow specialty nationwide, with 1,570 enrolled providers across 52 states and an average of 1,596 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1400 S GRAND AVE
LOS ANGELES, CA 90015

Provider Details

NPI 1215921044
Specialty Clinical Cardiac Electrophysiology Physician
Credentials MD INC
Gender Male
NPI Issued 09/08/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

0
Final Score
Avg: 83.1
0
Quality

Reporting: Individual

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MARC GIRSKY, MD INC. Source: openpaymentsdata.cms.gov.

Total received

$4.8K

Largest payer

Boston Scientific Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to MARC GIRSKY, MD INC. To verify MARC GIRSKY, MD INC's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

944
Total Claims
$154K
Total Drug Cost
172
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,780
Total Day Supply
52,638
Generic Drug Cost
$23K
Antibiotic Claims
18

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
2.25
Gender Split
44% female / 56% male
Age Distribution
<65: 13, 65-74: 81, 75-84: 55, 85+: 23

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Carvedilol
89
Eliquis
Apixaban
89
Digoxin
71
Metoprolol Tartrate
68
Metoprolol Succinate
67
Flecainide Acetate
49
Amiodarone Hcl
42
Furosemide
40
Amlodipine Besylate
31
Losartan Potassium
31

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Clinical Cardiac Electrophysiology Physician Overview

How MARC GIRSKY, MD INC fits within the Clinical Cardiac Electrophysiology Physician landscape nationally.

1,570
Clinical Cardiac Electrophysiology Physician Providers in US
52
States with Clinical Cardiac Electrophysiology Physician
1,596
Avg Claims per Provider

MARC GIRSKY, MD INC's 944 claims are below the specialty average of 1,596.

Nearby Clinical Cardiac Electrophysiology Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as GIRSKY.

Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARC GIRSKY, MD INC's specialty?
MARC GIRSKY, MD INC specializes in Clinical Cardiac Electrophysiology Physician and practices in LOS ANGELES, California. Credentials: MD INC.
How much does MARC GIRSKY, MD INC prescribe under Medicare Part D?
In 2023, MARC GIRSKY, MD INC wrote 944 Medicare Part D claims totaling $154K in drug costs for 172 beneficiaries.
What is MARC GIRSKY, MD INC's Medicare quality score?
MARC GIRSKY, MD INC has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARC GIRSKY, MD INC located?
MARC GIRSKY, MD INC is located at 1400 S GRAND AVE, LOS ANGELES, CA, 90015. Phone: (213) 748-0110.
What is MARC GIRSKY, MD INC's NPI number?
MARC GIRSKY, MD INC's National Provider Identifier (NPI) is 1215921044, issued on 09/08/2005.
How many Clinical Cardiac Electrophysiology Physician providers are there in the US?
There are 1,570 Clinical Cardiac Electrophysiology Physician providers across 52 states in the US. The average Clinical Cardiac Electrophysiology Physician provider writes 1,596 Medicare Part D claims per year.
What drugs does MARC GIRSKY, MD INC prescribe most often?
Based on 2023 Medicare Part D data, MARC GIRSKY, MD INC's most frequently prescribed drugs include Carvedilol, Eliquis, Digoxin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARC GIRSKY, MD INC accept Medicare?
MARC GIRSKY, MD INC appears in CMS Medicare data with 944 Part D claims and 172 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARC GIRSKY, MD INC's credentials?
MARC GIRSKY, MD INC's NPI is 1215921044 with credentials MD INC. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology