NPI registry status
Active
2026 NPPES data Radiation Oncology Physician NPI 1952363384 M.D.
Verify on CMS → Louise Clay, M.D.
Radiation Oncology Physician in Charleston, 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 6,018 in Radiation Oncology 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
43
Medicare Part D claims · 23 beneficiaries · Radiation Oncology Physician avg: 186
MIPS score
83.3/100
▲ 0 pts above national avg 83.1 · Above neutral
Industry payments
$31.64
1 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
Louise Clay, M.D. reported a CMS MIPS final score of 83.3/100 - above the 83.1 national average - and filed 43 Medicare Part D claims in 2023.
- 83.3/100
- MIPS score · +0 vs avg
- 43
- Part D claims, 2023
- 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.
Louise Clay, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
83 42nd percentile higher than 42% 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 Louise Clay, M.D. sits
This provider among radiation oncology physician peers
Across the 1,988 radiation oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Louise Clay, M.D. writes more Part D claims than 23% of them and scores higher on MIPS quality than 44% - placing this provider in the lower-volume, lower-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 radiation oncology physician peer from a representative sample of 60; the gold marker is Louise Clay, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Louise Clay, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Louise Clay, M.D.?
Near national averagePrimary specialty
Radiation Oncology Physician
Medicare Part D claims
43 77% vs specialty avg
MIPS final score
83.3/100 0.2 pts vs avg
Specialty distribution in South Carolina
How Radiation Oncology Physician compares to other specialties among South Carolina providers
Medicare quality performance, MIPS
Louise Clay, M.D.'s 2023 MIPS final score plotted against the Radiation Oncology Physician national average
- MIPS Final Score
- 83.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Radiation Oncology Physician) - 83.3/100 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).
Louise Clay, M.D. appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding M.D. credentials at 2085 HENRY TECKLENBURG DR STE 106, Charleston, SC, 29414, with a listed phone of (843) 958-2550. NPI 1952363384 was issued on 04/03/2006.
Medicare Part D records for calendar year 2023 show 43 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $687 in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.3/100 for the 2023 performance year (Quality 66.7), compared with the national average of 83.1.
Radiation Oncology Physician is a mid-sized specialty nationwide, with 6,018 enrolled providers across 52 states and an average of 186 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 | 1952363384 |
|---|---|
| Specialty | Radiation Oncology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/03/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
83.3334
Final Score
Avg: 83.1
66.6667
Quality
Reporting: Individual
Hospital and facility affiliations
Facilities where Louise Clay, 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.
Roper Saint Francis Physicians Network
Charleston, 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 Louise Clay, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$32
Largest payer
Teleflex LLC
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
43
Total Claims
$687
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 47
- Total Day Supply
- 700
- Brand Drug Cost
- $0
- Generic Drug Cost
- $687
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 1.57
Radiation Oncology Physician Overview
How Louise Clay, M.D. fits within the Radiation Oncology Physician landscape nationally.
6,018
Radiation Oncology Physician Providers in US
52
States with Radiation Oncology Physician
186
Avg Claims per Provider
Louise Clay, M.D.'s 43 claims are below the specialty average of 186.
Nearby Radiation Oncology Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Clay.
Dr. Eric Aguero
MD
Charleston, SC
Dr. Heather Allen
MD
Spartanburg, SC
Dr. Samuel Andersen
MD
Myrtle Beach, SC
Dr. Stephen Andrews
DO
Myrtle Beach, SC
Dr. Harvey Balfour
MD
Sumter, SC
Compare Radiation Oncology 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 South Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Radiation Oncology 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 Louise Clay, M.D.'s specialty? ▼
Louise Clay, M.D. specializes in Radiation Oncology Physician and practices in Charleston, South Carolina. Credentials: M.D..
How much does Louise Clay, M.D. prescribe under Medicare Part D? ▼
In 2023, Louise Clay, M.D. wrote 43 Medicare Part D claims totaling $687 in drug costs for 23 beneficiaries.
What is Louise Clay, M.D.'s Medicare quality score? ▼
Louise Clay, M.D. has a CMS MIPS Final Score of 83.3/100 (Quality: 66.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Louise Clay, M.D. located? ▼
Louise Clay, M.D. is located at 2085 HENRY TECKLENBURG DR STE 106, Charleston, SC, 29414. Phone: (843) 958-2550.
What is Louise Clay, M.D.'s NPI number? ▼
Louise Clay, M.D.'s National Provider Identifier (NPI) is 1952363384, issued on 04/03/2006.
How many Radiation Oncology Physician providers are there in the US? ▼
There are 6,018 Radiation Oncology Physician providers across 52 states in the US. The average Radiation Oncology Physician provider writes 186 Medicare Part D claims per year.
Does Louise Clay, M.D. accept Medicare? ▼
Louise Clay, M.D. appears in CMS Medicare data with 43 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Louise Clay, M.D.'s credentials? ▼
Louise Clay, M.D.'s NPI is 1952363384 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
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.