NPI registry status
Active
2026 NPPES data Radiation Oncology Physician NPI 1891964615 MD
Verify on CMS → John Nelson, MD
Radiation Oncology Physician in Raleigh, North 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
458
Medicare Part D claims · 106 beneficiaries · Radiation Oncology Physician avg: 186
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
John Nelson, MD filed 458 Medicare Part D claims in 2023 as a Radiation Oncology Physician in Raleigh, North Carolina.
- 458
- 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.
John Nelson, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
458 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 certification likely (heuristic, not verified)
John Nelson, 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 John Nelson, MD?
Quality data not reportedPrimary specialty
Radiation Oncology Physician
Medicare Part D claims
458 146% vs specialty avg
Specialty distribution in North Carolina
How Radiation Oncology Physician compares to other specialties among North 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 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).
John Nelson, MD appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding MD credentials at 5524 HAWTHORNE PARK, Raleigh, NC, 27613, with a listed phone of (919) 870-0057. NPI 1891964615 was issued on 02/26/2008.
Medicare Part D records for calendar year 2023 show 458 prescription claims written by this provider, covering 106 Medicare beneficiaries and totaling roughly $55K in drug spend, with an opioid prescribing rate of 3.5%.
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 | 1891964615 |
|---|---|
| Specialty | Radiation Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/26/2008 |
Hospital and facility affiliations
Facilities where John Nelson, 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.
Duke Health Integrated Practice Inc
Durham, NC
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 2023.
458
Total Claims
$55K
Total Drug Cost
106
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 699
- Total Day Supply
- 19,201
- Generic Drug Cost
- $7K
- Opioid Claims
- 16 (3.5% rate)
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 1.40
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Nelson, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Tamsulosin Hcl
Tamsulosin Hcl
175 claims
- Myrbetriq 42
Myrbetriq
42 claims
- Oxybutynin Chlorid… 31
Oxybutynin Chloride Er
31 claims
- Oxtellar Xr 29
Oxtellar Xr
29 claims
- Jardiance 25
Jardiance
25 claims
- Gabapentin 12
Gabapentin
12 claims
- Metformin Hcl 12
Metformin Hcl
12 claims
- Baclofen 11
Baclofen
11 claims
| Drug | Claims |
|---|---|
| Tamsulosin Hcl | 175 |
| Myrbetriq Mirabegron | 42 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 31 |
| Oxtellar Xr Oxcarbazepine | 29 |
| Jardiance Empagliflozin | 25 |
| Gabapentin | 12 |
| Metformin Hcl | 12 |
| Baclofen | 11 |
* 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 John Nelson, 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
John Nelson, MD's 458 claims are above the specialty average of 186.
Nearby Radiation Oncology Physician Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Nelson.
Dr. Mustafa Abugideiri
MD
Wilmington, NC
Dr. Jeffrey Acker
M.D.
Pinehurst, NC
Dr. Quentin Adams
M.D.
Winston Salem, NC
Dr. Mark Alden
MD
Greenville, NC
Dr. Karen Allen
NP
Durham, NC
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 North 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore North Carolina
Frequently Asked Questions
What is John Nelson, MD's specialty? ▼
John Nelson, MD specializes in Radiation Oncology Physician and practices in Raleigh, North Carolina. Credentials: MD.
How much does John Nelson, MD prescribe under Medicare Part D? ▼
In 2023, John Nelson, MD wrote 458 Medicare Part D claims totaling $55K in drug costs for 106 beneficiaries.
Where is John Nelson, MD located? ▼
John Nelson, MD is located at 5524 HAWTHORNE PARK, Raleigh, NC, 27613. Phone: (919) 870-0057.
What is John Nelson, MD's NPI number? ▼
John Nelson, MD's National Provider Identifier (NPI) is 1891964615, issued on 02/26/2008.
Does John Nelson, MD prescribe opioids? ▼
Yes, John Nelson, MD had 16 opioid claims in 2023 with an opioid prescribing rate of 3.5%.
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 John Nelson, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Nelson, MD's most frequently prescribed drugs include Tamsulosin Hcl, Myrbetriq, Oxybutynin Chloride Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Nelson, MD accept Medicare? ▼
John Nelson, MD appears in CMS Medicare data with 458 Part D claims and 106 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Nelson, MD's credentials? ▼
John Nelson, MD's NPI is 1891964615 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.