2026 NPPES data Specialist NPI 1851333587 M.D.
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MARC BERNSTEIN, M.D.

Specialist in SLIDELL, Louisiana. 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
17K
Medicare Part D claims · 1K beneficiaries · Specialist avg: 1K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$1.9K
115 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MARC BERNSTEIN, M.D. is a Specialist ([object Object]) practicing in SLIDELL, Louisiana with a Medicare Part D prescribing footprint of 17K claims across 1K beneficiaries — 18% brand-name prescribing . Their CMS MIPS Final Score of 75/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $1.9K across 115 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MARC BERNSTEIN, M.D. reported a CMS MIPS final score of 75 out of 100, below the 83.1 national average, and filed 16,773 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

MARC BERNSTEIN, M.D. at a glance

Below national average

NPI registry status

Active

Issued 06/10/2006

NPI 1851333587

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

16,773 1038% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Louisiana

How Specialist compares to other specialties among Louisiana providers

Louisiana providers

Specialist share within Louisiana

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Louisiana

Medicare quality performance — MIPS

MARC BERNSTEIN, M.D.'s 2023 MIPS final score plotted against the Specialist national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Specialist) — 75/100 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 BERNSTEIN, M.D. is a Specialist provider practicing in SLIDELL, Louisiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1851333587. 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 BERNSTEIN, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 901 GAUSE BLVD, SLIDELL, LA, 70458, with a listed phone of (985) 649-2700. NPI 1851333587 was issued on 06/10/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERNSTEIN 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 16,773 prescription claims written by this provider, covering 1,284 Medicare beneficiaries and totaling roughly $2.9 million in drug spend, split 18% brand-name and 82% generic by claim count, with an opioid prescribing rate of 0.2%. 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 75/100 for the 2023 performance year, compared with the national average of 83.1.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

901 GAUSE BLVD
SLIDELL, LA 70458

Provider Details

NPI 1851333587
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 06/10/2006

CMS Quality Score (MIPS)

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

75
Final Score
Avg: 83.1

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARC BERNSTEIN, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CARDIOVASCULAR SPECIALTY CARE CENTER OF COVINGTON, LLC
COVINGTON, LA
ITELD BERNSTEIN AND ASSOCIATES LLC
SLIDELL, LA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 BERNSTEIN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.9K

Largest payer

Novartis Pharmaceuticals 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.

Brand vs generic prescribing mix · Typical

MARC BERNSTEIN, M.D. — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 16,773 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

16,773
Total Claims
$2.9M
Total Drug Cost
1,284
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
37,671
Total Day Supply
1,121,819
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$2.6M
Generic Drug Cost
$305K
Opioid Claims
37 (0.2% rate)
Antibiotic Claims
50

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
1.52
Gender Split
48% female / 52% male
Age Distribution
<65: 142, 65-74: 613, 75-84: 413, 85+: 116

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Metoprolol Succinate
1,185
Atorvastatin Calcium
1,094
Rosuvastatin Calcium
754
Amlodipine Besylate
727
Eliquis
Apixaban
667
Lisinopril
663
Carvedilol
657
Clopidogrel
Clopidogrel Bisulfate
622
Losartan Potassium
597
Ezetimibe
510

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

Specialist Overview

How MARC BERNSTEIN, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

MARC BERNSTEIN, M.D.'s 16,773 claims are above the specialty average of 1,474.

Nearby Specialist Providers in Louisiana

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARC BERNSTEIN, M.D.'s specialty?
MARC BERNSTEIN, M.D. specializes in Specialist and practices in SLIDELL, Louisiana. Credentials: M.D..
How much does MARC BERNSTEIN, M.D. prescribe under Medicare Part D?
In 2023, MARC BERNSTEIN, M.D. wrote 16,773 Medicare Part D claims totaling $2.9M in drug costs for 1,284 beneficiaries.
What is MARC BERNSTEIN, M.D.'s Medicare quality score?
MARC BERNSTEIN, M.D. has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARC BERNSTEIN, M.D. located?
MARC BERNSTEIN, M.D. is located at 901 GAUSE BLVD, SLIDELL, LA, 70458. Phone: (985) 649-2700.
What is MARC BERNSTEIN, M.D.'s NPI number?
MARC BERNSTEIN, M.D.'s National Provider Identifier (NPI) is 1851333587, issued on 06/10/2006.
Does MARC BERNSTEIN, M.D. prescribe more brand-name or generic drugs?
MARC BERNSTEIN, M.D.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $2.6M in brand drug costs.
Does MARC BERNSTEIN, M.D. prescribe opioids?
Yes, MARC BERNSTEIN, M.D. had 37 opioid claims in 2023 with an opioid prescribing rate of 0.2%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does MARC BERNSTEIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARC BERNSTEIN, M.D.'s most frequently prescribed drugs include Metoprolol Succinate, Atorvastatin Calcium, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARC BERNSTEIN, M.D. accept Medicare?
MARC BERNSTEIN, M.D. appears in CMS Medicare data with 16,773 Part D claims and 1,284 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARC BERNSTEIN, M.D.'s credentials?
MARC BERNSTEIN, M.D.'s NPI is 1851333587 with credentials M.D.. 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