NPI registry status
Active
2026 NPPES data Radiation Oncology Physician NPI 1730508599 MD
Verify on CMS → Clayton Alonso, MD
Radiation Oncology Physician in Tampa, Florida.
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
171
Medicare Part D claims · 66 beneficiaries · Radiation Oncology Physician avg: 186
Industry payments
$170.5
5 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Clayton Alonso, MD filed 171 Medicare Part D claims in 2023 as a Radiation Oncology Physician in Tampa, Florida.
- 171
- 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.
Clayton Alonso, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
171 35th percentile higher than 35% 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 certification likely (heuristic, not verified)
Clayton Alonso, 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 Clayton Alonso, MD?
Quality data not reportedPrimary specialty
Radiation Oncology Physician
Medicare Part D claims
171 8% vs specialty avg
Specialty distribution in Florida
How Radiation Oncology Physician compares to other specialties among Florida 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 Radiation Oncology 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).
Clayton Alonso, MD appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding MD credentials at 2 TAMPA GENERAL CIR FL 3, Tampa, FL, 33606, with a listed phone of (813) 844-7585. NPI 1730508599 was issued on 04/09/2014.
Medicare Part D records for calendar year 2023 show 171 prescription claims written by this provider, covering 66 Medicare beneficiaries and totaling roughly $3K in drug spend.
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 | 1730508599 |
|---|---|
| Specialty | Radiation Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/09/2014 |
Hospital and facility affiliations
Facilities where Clayton Alonso, 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.
Tampa General Medical Group Inc
Tampa, FL
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 Clayton Alonso, MD. Source: openpaymentsdata.cms.gov.
Total received
$171
Largest payer
Aadi Bioscience, 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.
License & disciplinary context - Florida FLDOH 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 - they are NOT specific to Clayton Alonso, MD. To verify Clayton Alonso, MD's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases
FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
171
Total Claims
$3K
Total Drug Cost
66
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 223
- Total Day Supply
- 5,612
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 72.1 years
- Avg HCC Risk Score
- 2.42
- Gender Split
- 33% female / 67% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Clayton Alonso, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Tamsulosin Hcl
Tamsulosin Hcl
66 claims
- Dexamethasone 13
Dexamethasone
13 claims
- Lidocaine Hcl Visc… 13
Lidocaine Hcl Viscous
13 claims
- Memantine Hcl 12
Memantine Hcl
12 claims
| Drug | Claims |
|---|---|
| Tamsulosin Hcl | 66 |
| Dexamethasone | 13 |
| Lidocaine Hcl Viscous Lidocaine Hcl | 13 |
| Memantine Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Radiation Oncology Physician Overview
How Clayton Alonso, MD 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
Clayton Alonso, MD's 171 claims are below the specialty average of 186.
Nearby Radiation Oncology Physician Providers in Florida
Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Alonso.
Dr. Andre Abitbol
M.D.
Miami, FL
Dr. Matthew Abramowitz
MD
Miami, FL
Dr. Scot Ackerman
MD
Jacksonville, FL
Dr. James Adams
MD
Pensacola, FL
Dr. Paul Adams
MD
Oxford, FL
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 Florida 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 Clayton Alonso, MD's specialty? ▼
Clayton Alonso, MD specializes in Radiation Oncology Physician and practices in Tampa, Florida. Credentials: MD.
How much does Clayton Alonso, MD prescribe under Medicare Part D? ▼
In 2023, Clayton Alonso, MD wrote 171 Medicare Part D claims totaling $3K in drug costs for 66 beneficiaries.
Where is Clayton Alonso, MD located? ▼
Clayton Alonso, MD is located at 2 TAMPA GENERAL CIR FL 3, Tampa, FL, 33606. Phone: (813) 844-7585.
What is Clayton Alonso, MD's NPI number? ▼
Clayton Alonso, MD's National Provider Identifier (NPI) is 1730508599, issued on 04/09/2014.
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.
What drugs does Clayton Alonso, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Clayton Alonso, MD's most frequently prescribed drugs include Tamsulosin Hcl, Dexamethasone, Lidocaine Hcl Viscous. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Clayton Alonso, MD accept Medicare? ▼
Clayton Alonso, MD appears in CMS Medicare data with 171 Part D claims and 66 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Clayton Alonso, MD's credentials? ▼
Clayton Alonso, MD's NPI is 1730508599 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.
- 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.