NPPES file of Aug 9, 2026

Radiation Oncology Physician in Ohio

298 NPPES records list radiation oncology physician with a practice address in Ohio, 2.5 per 100,000 residents, the 11th highest rate of 51. Columbus and Cleveland have the most; each record links to the provider's NPI and the Ohio license search. Page 3 of 6.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085R0001X · method

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

Columbus has the most, 70

  1. Columbus70
  2. Cleveland60
  3. Cincinnati37
  4. Kettering13
  5. Canton7

Radiation Oncology Physician records in Ohio

  1. Patrizia Guerrieri, M.D.Boardman, OH 445121053696773
  2. Olga Gulinsky, MDCleveland, OH 441061376502930
  3. Kaiming Guo, MEDICAL PHYSICISTToledo, OH 436141801619176
  4. Shalini Gupta, M.D.Zanesville, OH 437011740446343
  5. Karl Haglund, MD, PHDColumbus, OH 432101518093996
  6. Marshall Harrell, MDColumbus, OH 432101851041115
  7. Shaakir Hasan, DOMansfield, OH 449031316367931
  8. Saleh Hatoum, MDDover, OH 446221396284717
  9. Peter Hendrickson, MD, PHDCincinnati, OH 452191265991038
  10. Aleck Hercbergs, M.D.Cleveland, OH 441951982667879
  11. Dwight Heron, MDYoungstown, OH 445041578536397
  12. Sandra Herrington, M.D.Lima, OH 458051104809904
  13. Kara Hertzfeld, MDMaumee, OH 435371174742472
  14. Eugene Hong, M.D.Newark, OH 430551811230600
  15. Susan Hong, MDAkron, OH 443041114918422
  16. David Howell, MDAthens, OH 457011154413557
  17. Kris Huang, MDCincinnati, OH 452191861641458
  18. Edward Hughes, MDKettering, OH 454201710938220
  19. Jalal Hyder, DOSylvania, OH 435601376923466
  20. John Hyland, M.D.Youngstown, OH 445041447221429
  21. Osagie Igiebor, MDCleveland, OH 441951205332376
  22. Wainwright Jaggernauth, MDMaumee, OH 435371689670580
  23. Foroogh Jazy, M.D.Batavia, OH 451031811974058
  24. Sachin Jhawar, M.D., M.S.Columbus, OH 432121356789853
  25. Xuemei JiColumbus, OH 432101730940529
  26. Angela Yuanyuan Jia, M.D., PH.D.Cleveland, OH 441061902338718
  27. Heather Kaiser, M.D.Dayton, OH 454151760492789
  28. Tasneem Kaleem, MDFairfield Township, OH 450111790197325
  29. Ahmad Karimi, MDCleveland, OH 441951730661711
  30. Jerald Katcher, MDCleveland, OH 441061154330744
  31. Kevin Kelley, M.D., PHDWarren, OH 444831558627539
  32. Samuel Keltner, MDKettering, OH 454291538797733
  33. Douglas Keyser, M.D.Canton, OH 447101902831688
  34. Jordan Kharofa, MDCincinnati, OH 452191699917088
  35. Subhash Khosla, MDGallipolis, OH 456311093768897
  36. Anton Khouri, MDCincinnati, OH 452471093958720
  37. Eric Kielhorn, M.D.Sylvania, OH 435601669631230
  38. Dong Kim, M.D.Cleveland, OH 441951245337666
  39. Matthew KnechtBeavercreek, OH 454311942569041
  40. Jenna Kocsis, MDCleveland, OH 441061275111387
  41. David Konieczkowski, M.D., PH.D.Columbus, OH 432101184005266
  42. Ronald Kossow, MDKettering, OH 454291710972849
  43. Katherine Kotinsley, MDCleveland, OH 441091356591580
  44. Shlomo Koyfman, M.D.Cleveland, OH 441951578732517
  45. Margaret Kranyak, M.D.Cleveland, OH 441951033214663
  46. Vijay Kudithipudi, MDColumbus, OH 432151457618548
  47. Aryavarta Kumar, M.D., PH.D.Springfield, OH 455041851533020
  48. Pavnesh Kumar, MDColumbus, OH 432101154992295
  49. Steven Kurtzman, MDGarfield Heights, OH 441251114918851
  50. Young Kwon, MDColumbus, OH 432101043548209

Source: CMS NPPES, primary taxonomy 2085R0001X: records by practice city and the list of records, file of Aug 9, 2026.

Ohio ranks 11 of 51 per resident

  1. Rhode Island2.6
  2. Wisconsin2.6
  3. Washington2.5
  4. Ohio2.5
  5. South Dakota2.4
  6. Michigan2.4
  7. 50 states and D.C.2.1

Source: CMS NPPES, primary taxonomy 2085R0001X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

83.2% of these records appear in a Medicare file, against 82.3% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Ohio83.2%
  2. United States82.3%

Radiation Oncology Physician records in Ohio, measured

  • In a Medicare file248 of 298 · 83.2% here, 82.3% nationally
  • In the CMS Doctors and Clinicians file226 · 75.8% here, 74.0% nationally
  • Not updated in five years or more150 · 50.3% here, 54.6% nationally
  • Median graduation year2008 · the 226 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085R0001X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

298 NPPES records list radiation oncology physician (2085R0001X) as their primary taxonomy with a practice address in Ohio: 2.5 per 100,000 residents against 2.1 nationally (50 states and D.C.). Columbus has 70 of them (23%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Illinois277
  2. Massachusetts241
  3. Michigan239
  4. North Carolina230

States with a similar rate per 100,000

  1. Washington2.5
  2. Wisconsin2.6
  3. Rhode Island2.6
  4. South Dakota2.4

The largest states

  1. California735
  2. Florida520
  3. New York449
  4. Texas449
  5. Pennsylvania383

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.