NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1942256516 MD
Verify on CMS → Martin Webb, MD
Nephrology Physician in Beaufort, South Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,806 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
375
Medicare Part D claims · 126 beneficiaries · Nephrology Physician avg: 2K
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$600.31
31 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Martin Webb, MD filed 375 Medicare Part D claims in 2024 as a Nephrology Physician in Beaufort, South Carolina, prescribing 79% generic.
- 375
- Part D claims, 2024
- 79%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥56th
- 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 Martin Webb, MD
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 1942256516), first enumerated 05/25/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 375 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$600.31 in reported industry payments (31 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1942256516 · Nephrology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1942256516
- ENUM-LEGACY 2006
- TAX-MID 11K Nephrology Physician
- RX-LIGHT 375
- BOOK-THIN 160 in South Carolina
- PHOTO-ENUM Lois Katz, MD · 2006
Martin Webb, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
375 ≥ 56th percentile 56% 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
✓
Board certification likely (heuristic, not verified)
Martin Webb, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Martin Webb, MD?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
375 75% vs specialty avg
Specialty distribution in South Carolina
How Nephrology Physician compares to other specialties among South Carolina 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).
Practice Address
Provider Details
| NPI | 1942256516 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/25/2006 |
Hospital and facility affiliations
Facilities where Martin Webb, MD 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.
Nephrology And Hypertension Medical Associates PC
Beaufort, SC
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 Martin Webb, MD. Source: openpaymentsdata.cms.gov.
Total received
$600
Largest payer
Amgen Inc.
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
Martin Webb, MD - brand share 21.0%
Nephrology Physician average
21% brand-name claims vs 79% generic, on 375 2024 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 2024.
375
Total Claims
$136K
Total Drug Cost
126
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 636.267
- Total Day Supply
- 18,288
- Brand vs Generic
- 21% brand / 79% generic
- Brand Drug Cost
- $129K
- Generic Drug Cost
- $7K
- Antibiotic Claims
- 27
Patient Demographics
- Average Patient Age
- 71.2 years
- Avg HCC Risk Score
- 3.75
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 24, 65-74: 46, 75-84: 44, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Martin Webb, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Farxiga
Farxiga
25 claims
- Furosemide
Furosemide
23 claims
- Losartan Potassium
Losartan Potassium
23 claims
- Allopurinol
Allopurinol
22 claims
- Velphoro
Velphoro
20 claims
- Calcitriol
Calcitriol
17 claims
- Hydralazine Hcl
Hydralazine Hcl
15 claims
- Amlodipine Besylate
Amlodipine Besylate
12 claims
| Drug | Claims |
|---|---|
| Farxiga Dapagliflozin Propanediol | 25 |
| Furosemide | 23 |
| Losartan Potassium | 23 |
| Allopurinol | 22 |
| Velphoro Sucroferric Oxyhydroxide | 20 |
| Calcitriol | 17 |
| Hydralazine Hcl | 15 |
| Amlodipine Besylate | 12 |
| Bumetanide | 12 |
| Clonidine | 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 Martin Webb, MD fits within the Nephrology Physician landscape nationally.
10,806
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,511
Avg Claims per Provider
Martin Webb, MD's 375 claims are below the specialty average of 1,511.
Nationwide Nephrology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Webb, both outside South Carolina so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nephrology Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Webb.
One of 160 Nephrology Physician providers enrolled in South Carolina, 5 are shown here.
Dr. Ahmed Abdelkader
MD, PHD
Charleston, SC
Dr. George Acres
MD
Greenville, SC
Dr. Frederick Adams
MD
Spartanburg, SC
Chokri Alioua
Greenville, SC
Dr. Mhd Alsaka
MD
Florence, SC
Compare Nephrology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Martin Webb, MD's specialty? ▼
Martin Webb, MD specializes in Nephrology Physician and practices in Beaufort, South Carolina. Credentials: MD.
How much does Martin Webb, MD prescribe under Medicare Part D? ▼
In 2024, Martin Webb, MD wrote 375 Medicare Part D claims totaling $136K in drug costs for 126 beneficiaries.
Where is Martin Webb, MD located? ▼
Martin Webb, MD is located at 16 KEMMERLIN LN, Beaufort, SC, 29907. Phone: (843) 524-2002.
What is Martin Webb, MD's NPI number? ▼
Martin Webb, MD's National Provider Identifier (NPI) is 1942256516, issued on 05/25/2006.
Does Martin Webb, MD prescribe more brand-name or generic drugs? ▼
Martin Webb, MD's prescribing is 21% brand-name and 79% generic drugs by claim count, with $129K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,806 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,511 Medicare Part D claims per year.
What drugs does Martin Webb, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Martin Webb, MD's most frequently prescribed drugs include Farxiga, Furosemide, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Martin Webb, MD accept Medicare? ▼
Martin Webb, MD appears in CMS Medicare data with 375 Part D claims and 126 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Martin Webb, MD's credentials? ▼
Martin Webb, MD's NPI is 1942256516 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 (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.