John Preston Claiborne, MD
Medical Oncology Physician · Durham, NC
John Preston Claiborne, MD is a medical oncology physician with a practice address in Durham, North Carolina, and NPI 1437787074, issued on Mar 30, 2020. Check the license (North Carolina 2026-01525, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Preston Claiborne
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 2026-01525 NC
Self-reported in NPPES; status is on the state search - Practice location
- 2400 Pratt St, Durham, NC 27705
- Phone
- (919) 684-3495
- Enumerated
- Mar 30, 2020
- Record last updated
- Jul 31, 2026
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 191 in North Carolina → Look up another NPI →
Also registered at 2400 Pratt St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Taylor Addis, NPNurse Practitioner1982179800
- Arun Ajmera, MDPediatric Gastroenterology Physician1336645431
- Karen Alexander, MDSpecialist1265490494
- Brittney Arnold, PTPhysical Therapist1396190260
- Alicia Blue, FNP-BCNurse Practitioner1245967728
- Sara Calvert, PHARM.D.Pharmacotherapy Pharmacist1457387136
Verify John Preston Claiborne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNorth Carolina Medical Board
Search for license 2026-01525Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average medical oncology physician in 2024
98 Medicare Part D claims for 32 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $123.12
1 payment: food and beverage; the largest payer was Jazz Pharmaceuticals Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John Preston Claiborne among 191 medical oncology physician records in North Carolina
John Preston Claiborne, MD is one of 191 medical oncology physician records with a practice address in North Carolina. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 98% of them.
- NPI issued2020 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 73% of these records are
- Record last updated2026 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in North Carolina
There are 191 medical oncology physician records in North Carolina.
All 191 in North Carolina → Every provider in Durham → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Radhika Khwaja, M.D.Durham, NC 277051639270739
- Christina Lynch, PA-CDurham, NC 277051770734188
- Hannah McManus, MDDurham, NC 277051821451485
- Nathan Nussbaum, M.D.Durham, NC 277051760620082
- Pradeep Poonnen, MDDurham, NC 277051184035297
- Ryne RamakerDurham, NC 277051174151500
- Sundhar Ramalingam, M.D.Durham, NC 277051366768632
- Sendhilnathan Ramalingam, M.D.Durham, NC 277051164818126
Common questions
What is John Preston Claiborne, MD's NPI number?
John Preston Claiborne, MD's National Provider Identifier (NPI) is 1437787074, issued on Mar 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is John Preston Claiborne, MD located?
The NPPES record lists a practice address at 2400 Pratt St, Durham, NC, 27705. Phone: (919) 684-3495. Providers update this record themselves, so call before visiting.
How can I verify John Preston Claiborne, MD's license?
NPPES lists North Carolina license number 2026-01525, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Preston Claiborne, MD prescribe under Medicare Part D?
In 2024, John Preston Claiborne, MD had 98 Medicare Part D claims for 32 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.