NPPES file of Aug 9, 2026

Karen Jean Allen, NP

Radiation Oncology Physician · Durham, NC

Karen Jean Allen, NP is a radiation oncology physician with a practice address in Durham, North Carolina, and NPI 1861724627, issued on Feb 4, 2010. Check the license (North Carolina 5004523, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861724627
Name
Karen Jean Allen
Credential
NP
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
5004523 NC
Self-reported in NPPES; status is on the state search
Practice location
2100 Erwin RD, Durham, NC 27705
Phone
(919) 684-8111
Enumerated
Feb 4, 2010
Record last updated
Feb 4, 2010 (not updated in 16 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2100 Erwin RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Abbott, M.D.Diagnostic Radiology Physician1487818696
  2. Obinna Adibe, M.D.Pediatric Surgery Physician1942476692
  3. Deanna Adkins, M.D.Pediatrics Physician1942359955
  4. Nicolas Aeschlimann, M.D.Anesthesiology Physician1003063116
  5. Mary AffrontiNurse Practitioner1437318300
  6. Adnan Ali, M.D.Diagnostic Radiology Physician1922264373

Verify Karen Jean Allen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 5004523    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the North Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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87% fewer Medicare Part D claims than the average radiation oncology physician in 2024

18 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Karen Allen18
  2. Specialty average134

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.

Radiation Oncology Physician providers in North Carolina

There are 230 radiation oncology physician records in North Carolina.

All 230 in North Carolina → Every provider in Durham →

Other radiation oncology physician records in North Carolina

  1. Mustafa Abugideiri, MDWilmington, NC1730576455
  2. Jeffrey Acker, M.D.Pinehurst, NC1013916543
  3. Quentin Adams, M.D.Winston Salem, NC1679923270
  4. Mark Alden, MDGreenville, NC1508827247
  5. Laura Allen, M.D,Lexington, NC1164477394
  6. Ron Allison, MDGreenville, NC1497750756
  7. Roger Anderson, MDRaleigh, NC1528096591
  8. Mitchell Anscher, M.D.Chapel Hill, NC1366472102
  9. Hyder Arastu, M.D.Greenville, NC1659377372
  10. Cynthia Ballenger, MDSmithfield, NC1811095771

Common questions

What is Karen Jean Allen, NP's NPI number?

Karen Jean Allen, NP's National Provider Identifier (NPI) is 1861724627, issued on Feb 4, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Karen Jean Allen, NP located?

The NPPES record lists a practice address at 2100 Erwin RD, Durham, NC, 27705. Phone: (919) 684-8111. Providers update this record themselves, so call before visiting.

How can I verify Karen Jean Allen, NP's license?

NPPES lists North Carolina license number 5004523, 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 Karen Jean Allen, NP prescribe under Medicare Part D?

In 2024, Karen Jean Allen, NP had 18 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.