NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1861993982 FNP
Verify on CMS → Sara Chapman, FNP
Nephrology Physician in West Monroe, 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 10,569 in Nephrology 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
406
Medicare Part D claims · 83 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
48%
generic claims · 52% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$50.88
2 payments · CMS Open Payments (Sunshine Act)
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
Sara Chapman, FNP filed 406 Medicare Part D claims in 2023 as a Nephrology Physician in West Monroe, Louisiana, prescribing 48% generic.
- 406
- Part D claims, 2023
- 48%
- generic prescribing
- $50.88
- industry payments (Sunshine Act)
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.
Sara Chapman, FNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
406 Top 38% higher than 62% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Sara Chapman, FNP practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Sara Chapman, FNP?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
406 72% vs specialty avg
Specialty distribution in Louisiana
How Nephrology Physician 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 Nephrology Physician. 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).
Sara Chapman, FNP appears in the CMS NPPES registry as a Nephrology Physician provider holding FNP credentials at 401 THOMAS RD STE 1, West Monroe, LA, 71292, with a listed phone of (318) 325-5435. NPI 1861993982 was issued on 02/23/2018.
Medicare Part D records for calendar year 2023 show 406 prescription claims written by this provider, covering 83 Medicare beneficiaries and totaling roughly $374K in drug spend, split 52% brand-name and 48% generic by claim count.
Nephrology Physician is a mid-sized specialty nationwide, with 10,569 enrolled providers across 55 states and an average of 1,454 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 | 1861993982 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | FNP |
| Gender | Female |
| NPI Issued | 02/23/2018 |
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 Sara Chapman, FNP. Source: openpaymentsdata.cms.gov.
Total received
$51
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 · Brand-heavy
Sara Chapman, FNP - brand share 52.0%
Nephrology Physician average
52% brand-name claims vs 48% generic, on 406 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.
406
Total Claims
$374K
Total Drug Cost
83
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 508
- Total Day Supply
- 15,121
- Brand vs Generic
- 52% brand / 48% generic
- Brand Drug Cost
- $343K
- Generic Drug Cost
- $31K
Patient Demographics
- Average Patient Age
- 66.8 years
- Avg HCC Risk Score
- 7.84
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 30, 65-74: 28, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sara Chapman, FNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sevelamer Carbonate
Sevelamer Carbonate
107 claims
- Auryxia
Auryxia
105 claims
- Velphoro
Velphoro
69 claims
- Losartan Potassium 20
Losartan Potassium
20 claims
- Doxazosin Mesylate 12
Doxazosin Mesylate
12 claims
- Lanthanum Carbonate 12
Lanthanum Carbonate
12 claims
| Drug | Claims |
|---|---|
| Sevelamer Carbonate | 107 |
| Auryxia Ferric Citrate | 105 |
| Velphoro Sucroferric Oxyhydroxide | 69 |
| Losartan Potassium | 20 |
| Doxazosin Mesylate | 12 |
| Lanthanum Carbonate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Sara Chapman, FNP fits within the Nephrology Physician landscape nationally.
10,569
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Sara Chapman, FNP's 406 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Louisiana
Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as Chapman.
Ahmed Abdallah
New Orleans, LA
Dr. Zulqarnain Abro
MD
Shreveport, LA
Dr. Saeed Ahmed
M.D.
Kenner, LA
Dr. Alfred Ajise
MD
Natchitoches, LA
Tareq Alhor
New Orleans, LA
Compare Nephrology 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 Nephrology 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 Sara Chapman, FNP's specialty? ▼
Sara Chapman, FNP specializes in Nephrology Physician and practices in West Monroe, Louisiana. Credentials: FNP.
How much does Sara Chapman, FNP prescribe under Medicare Part D? ▼
In 2023, Sara Chapman, FNP wrote 406 Medicare Part D claims totaling $374K in drug costs for 83 beneficiaries.
Where is Sara Chapman, FNP located? ▼
Sara Chapman, FNP is located at 401 THOMAS RD STE 1, West Monroe, LA, 71292. Phone: (318) 325-5435.
What is Sara Chapman, FNP's NPI number? ▼
Sara Chapman, FNP's National Provider Identifier (NPI) is 1861993982, issued on 02/23/2018.
Does Sara Chapman, FNP prescribe more brand-name or generic drugs? ▼
Sara Chapman, FNP's prescribing is 52% brand-name and 48% generic drugs by claim count, with $343K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,569 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Sara Chapman, FNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Sara Chapman, FNP's most frequently prescribed drugs include Sevelamer Carbonate, Auryxia, Velphoro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sara Chapman, FNP accept Medicare? ▼
Sara Chapman, FNP appears in CMS Medicare data with 406 Part D claims and 83 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sara Chapman, FNP's credentials? ▼
Sara Chapman, FNP's NPI is 1861993982 with credentials FNP. 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.
- 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.