NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1407337611 PA-C
Verify on CMS → Sarah Marx, PA-C
Medical Physician Assistant in Covington, 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 40,694 in Medical Physician Assistant, 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
1K
Medicare Part D claims · 383 beneficiaries · Medical Physician Assistant avg: 1K
What the federal data shows
Sarah Marx, PA-C filed 1,197 Medicare Part D claims in 2024 as a Medical Physician Assistant in Covington, Louisiana.
- 1K
- Part D claims, 2024
- ≥77th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Sarah Marx, PA-C
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1407337611), first enumerated 08/25/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,197 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1407337611 · Medical Physician Assistant
NPI-10 · ENUM-RECENT · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1407337611
- ENUM-RECENT 2018
- TAX-MID 41K Medical Physician
- RX-MID 1,197
- BOOK-THIN 349 in Louisiana
- PHOTO-ENUM Karen Elmquist, PA-C · 2018
Sarah Marx, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,197 ≥ 77th percentile 77% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Sarah Marx, PA-C?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
1,197 5% vs specialty avg
Specialty distribution in Louisiana
How Medical Physician Assistant compares to other specialties among Louisiana providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Medical Physician Assistant. Verify directly:
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).
Practice Address
Provider Details
| NPI | 1407337611 |
|---|---|
| Specialty | Medical Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 08/25/2018 |
Hospital and facility affiliations
Facilities where Sarah Marx, PA-C 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.
Ochsner Clinic LLC
Covington, 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).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
1,197
Total Claims
$84K
Total Drug Cost
383
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,394.467
- Total Day Supply
- 65,466
- Generic Drug Cost
- $12K
- Antibiotic Claims
- 119
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.25
- Gender Split
- 69% female / 31% male
- Age Distribution
- <65: 41, 65-74: 179, 75-84: 136, 85+: 27
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Sarah Marx, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amlodipine Besylate
Amlodipine Besylate
63 claims
- Levothyroxine Sodium
Levothyroxine Sodium
36 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
35 claims
- Citalopram Hbr
Citalopram Hbr
35 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
34 claims
- Doxycycline Monohy…
Doxycycline Monohydrate
30 claims
- Lisinopril
Lisinopril
30 claims
- Pantoprazole Sodium
Pantoprazole Sodium
29 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 63 |
| Levothyroxine Sodium | 36 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 35 |
| Citalopram Hbr Citalopram Hydrobromide | 35 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 34 |
| Doxycycline Monohydrate | 30 |
| Lisinopril | 30 |
| Pantoprazole Sodium | 29 |
| Sertraline Hcl | 28 |
| Losartan Potassium | 27 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Physician Assistant Overview
How Sarah Marx, PA-C fits within the Medical Physician Assistant landscape nationally.
40,694
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,139
Avg Claims per Provider
Sarah Marx, PA-C's 1,197 claims are above the specialty average of 1,139.
Nationwide Medical Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Marx, both outside Louisiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Medical Physician Assistant Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Marx.
One of 349 Medical Physician Assistant providers enrolled in Louisiana, 5 are shown here.
Juanita Alexander-Sallier
P.A.
Gretna, LA
Katherine Alleyne
PA-C
New Orleans, LA
John Allgood
PA-C
Opelousas, LA
Hazel Alviar
PA
Pineville, LA
Jason Amadeo
PA-C
Jefferson, LA
Compare Medical Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sarah Marx, PA-C's specialty? ▼
Sarah Marx, PA-C specializes in Medical Physician Assistant and practices in Covington, Louisiana. Credentials: PA-C.
How much does Sarah Marx, PA-C prescribe under Medicare Part D? ▼
In 2024, Sarah Marx, PA-C wrote 1,197 Medicare Part D claims totaling $84K in drug costs for 383 beneficiaries.
Where is Sarah Marx, PA-C located? ▼
Sarah Marx, PA-C is located at 1000 OCHSNER BLVD, Covington, LA, 70433. Phone: (985) 875-2828.
What is Sarah Marx, PA-C's NPI number? ▼
Sarah Marx, PA-C's National Provider Identifier (NPI) is 1407337611, issued on 08/25/2018.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,694 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,139 Medicare Part D claims per year.
What drugs does Sarah Marx, PA-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Sarah Marx, PA-C's most frequently prescribed drugs include Amlodipine Besylate, Levothyroxine Sodium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sarah Marx, PA-C accept Medicare? ▼
Sarah Marx, PA-C appears in CMS Medicare data with 1,197 Part D claims and 383 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sarah Marx, PA-C's credentials? ▼
Sarah Marx, PA-C's NPI is 1407337611 with credentials PA-C. 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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 August 2026 (NPPES) / 2024 (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
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 August 2026.