NPI registry status
Active
2026 NPPES data Clinical Genetics (M.D.) Physician NPI 1699798603 MD
Verify on CMS → Michael Marble, MD
Clinical Genetics (M.D.) Physician in New Orleans, Louisiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 823 in Clinical Genetics (M.D.) Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
72
Medicare Part D claims · Clinical Genetics (M.D.) Physician avg: 261
Generic prescribing
29%
generic claims · 71% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.2/100
▲ 2 pts above national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Michael Marble, MD reported a CMS MIPS final score of 85.2/100 - above the 83.1 national average - and filed 72 Medicare Part D claims in 2023.
- 85.2/100
- MIPS score · +2 vs avg
- 72
- Part D claims, 2023
- 29%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Michael Marble, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
85 49th percentile higher than 49% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Michael Marble, MD sits
This provider among clinical genetics (m.d.) physician peers
Across the 47 clinical genetics (m.d.) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Michael Marble, MD writes more Part D claims than 66% of them and scores higher on MIPS quality than 53% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one clinical genetics (m.d.) physician peer from a representative sample of 46; the gold marker is Michael Marble, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Michael Marble, MD 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).
What does the federal data show about Michael Marble, MD?
High performer (top quartile)Primary specialty
Clinical Genetics (M.D.) Physician
Medicare Part D claims
72 72% vs specialty avg
MIPS final score
85.2/100 2.1 pts vs avg
Specialty distribution in Louisiana
How Clinical Genetics (M.D.) Physician compares to other specialties among Louisiana providers
Medicare quality performance, MIPS
Michael Marble, MD's 2023 MIPS final score plotted against the Clinical Genetics (M.D.) Physician national average
- MIPS Final Score
- 85.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Clinical Genetics (M.D.) Physician) - 85.2/100 vs national avg 83.1
How MIPS and board certification work
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).
Michael Marble, MD appears in the CMS NPPES registry as a Clinical Genetics (M.D.) Physician provider holding MD credentials at CHILDREN'S HOSPITAL - GENETICS, New Orleans, LA, 70118, with a listed phone of (504) 896-9254. NPI 1699798603 was issued on 07/25/2006.
Medicare Part D records for calendar year 2023 show 72 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $821K in drug spend, split 71% brand-name and 29% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.2/100 for the 2023 performance year (Quality 81, Cost 57.1), compared with the national average of 83.1.
Clinical Genetics (M.D.) Physician is a narrow specialty nationwide, with 823 enrolled providers across 50 states and an average of 261 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
Provider Details
| NPI | 1699798603 |
|---|---|
| Specialty | Clinical Genetics (M.D.) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/25/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
85.1802
Final Score
Avg: 83.1
81.0056
Quality
57.0846
Cost
100
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Brand-heavy
Michael Marble, MD - brand share 71.0%
Clinical Genetics (M.D.) Physician average
71% brand-name claims vs 29% generic, on 72 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.
72
Total Claims
$821K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 72
- Total Day Supply
- 1,263
- Brand vs Generic
- 71% brand / 29% generic
- Brand Drug Cost
- $728K
- Generic Drug Cost
- $93K
Patient Demographics
- Average Patient Age
- 50.7 years
- Avg HCC Risk Score
- 1.80
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Michael Marble, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fabrazyme
Fabrazyme
25 claims
- Sapropterin Dihydr…
Sapropterin Dihydrochloride
20 claims
- Sodium Chloride
Sodium Chloride
18 claims
| Drug | Claims |
|---|---|
| Fabrazyme Agalsidase Beta | 25 |
| Sapropterin Dihydrochloride | 20 |
| Sodium Chloride 0.9 % Sodium Chloride | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Clinical Genetics (M.D.) Physician Overview
How Michael Marble, MD fits within the Clinical Genetics (M.D.) Physician landscape nationally.
823
Clinical Genetics (M.D.) Physician Providers in US
50
States with Clinical Genetics (M.D.) Physician
261
Avg Claims per Provider
Michael Marble, MD's 72 claims are below the specialty average of 261.
Nearby Clinical Genetics (M.D.) Physician Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Marble.
Dr. Meredith Allain
MD
New Orleans, LA
Dr. Hans Andersson
MD
New Orleans, LA
Seda Balkaya
Jefferson, LA
Dr. Jariya Upadia
MD
New Orleans, LA
Dr. Susonne Ursin
M.D.
Shreveport, LA
Compare Clinical Genetics (M.D.) Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Louisiana medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Clinical Genetics (M.D.) Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Michael Marble, MD's specialty? ▼
Michael Marble, MD specializes in Clinical Genetics (M.D.) Physician and practices in New Orleans, Louisiana. Credentials: MD.
How much does Michael Marble, MD prescribe under Medicare Part D? ▼
In 2023, Michael Marble, MD wrote 72 Medicare Part D claims totaling $821K in drug costs for N/A beneficiaries.
What is Michael Marble, MD's Medicare quality score? ▼
Michael Marble, MD has a CMS MIPS Final Score of 85.2/100 (Quality: 81, Cost: 57.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Michael Marble, MD located? ▼
Michael Marble, MD is located at CHILDREN'S HOSPITAL - GENETICS, New Orleans, LA, 70118. Phone: (504) 896-9254.
What is Michael Marble, MD's NPI number? ▼
Michael Marble, MD's National Provider Identifier (NPI) is 1699798603, issued on 07/25/2006.
Does Michael Marble, MD prescribe more brand-name or generic drugs? ▼
Michael Marble, MD's prescribing is 71% brand-name and 29% generic drugs by claim count, with $728K in brand drug costs.
How many Clinical Genetics (M.D.) Physician providers are there in the US? ▼
There are 823 Clinical Genetics (M.D.) Physician providers across 50 states in the US. The average Clinical Genetics (M.D.) Physician provider writes 261 Medicare Part D claims per year.
What drugs does Michael Marble, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Michael Marble, MD's most frequently prescribed drugs include Fabrazyme, Sapropterin Dihydrochloride, Sodium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Michael Marble, MD accept Medicare? ▼
Michael Marble, MD appears in CMS Medicare data with 72 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Michael Marble, MD's credentials? ▼
Michael Marble, MD's NPI is 1699798603 with credentials MD. 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.