NPPES file of Aug 9, 2026

Hematology & Oncology Physician in Maine

77 NPPES records list hematology & oncology physician with a practice address in Maine, 5.5 per 100,000 residents, the 7th highest rate of 51. Brewer and South Portland have the most; each record links to the provider's NPI and the Maine license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RH0003X · method

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

Brewer has the most, 15

  1. Brewer15
  2. South Portland12
  3. Westbrook10
  4. Augusta8
  5. Brunswick5

Hematology & Oncology Physician records in Maine

  1. Thomas Openshaw, MDBrewer, ME 044121588695811
  2. Edgardo Ortiz Flores, M.D.Brunswick, ME 040111184933996
  3. Sheila Karina Pascual, MDBrewer, ME 044121841510864
  4. Yelena Patsiornik, MDBrewer, ME 044121639364243
  5. Owen Pickus, D.O.Westbrook, ME 040921174565667
  6. Diana Porter, FNPBrewer, ME 044121376563197
  7. Daniel Rausch, MDWestbrook, ME 040921649478827
  8. Ronald Rohe, MDPresque Isle, ME 047691043202682
  9. Jens Rueter, MDBrewer, ME 044121891995189
  10. Helen Ryan, MDKennebunk, ME 040431477575793
  11. Ahmed Safa, MDKennebunk, ME 040431275970501
  12. Madelaine Sgroi, DOBrunswick, ME 040111184835951
  13. Sarah Sinclair, DOBrewer, ME 044121457399552
  14. Allison Smith, M.D.Brunswick, ME 040111942695564
  15. Beth Sypher, FNPBrewer, ME 044121841222098
  16. Christian Thomas, MDWestbrook, ME 040921487651584
  17. Donna ThompsonLewiston, ME 042401245457076
  18. Abby Thrower, MD PH.D.Augusta, ME 043301821073594
  19. Christopher Tretter, MDSouth Portland, ME 041061083648133
  20. Elena VagiaCaribou, ME 047361649831124
  21. Michael Voisine, D.O.South Portland, ME 041061467742403
  22. Tracey Weisberg, MDWestbrook, ME 040921871564724
  23. John Winters, MDWestbrook, ME 040921366648693
  24. Alexander WuBrewer, ME 044121285087817
  25. Yinlee Yoong, MDDamariscotta, ME 045431356326664
  26. Helen YuanBrunswick, ME 040111376034157
  27. Dimas Yusuf, MD, DABIM, FRCPCCaribou, ME 047361265910723

Source: CMS NPPES, primary taxonomy 207RH0003X: records by practice city and the list of records, file of Aug 9, 2026.

Maine ranks 7 of 51 per resident

  1. Washington6.1
  2. Pennsylvania6.0
  3. New York5.9
  4. Maine5.5
  5. Connecticut5.5
  6. New Hampshire5.4
  7. 50 states and D.C.4.2

Source: CMS NPPES, primary taxonomy 207RH0003X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

81.8% of these records appear in a Medicare file, against 82.9% 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. Maine81.8%
  2. United States82.9%

Hematology & Oncology Physician records in Maine, measured

  • In a Medicare file63 of 77 · 81.8% here, 82.9% nationally
  • In the CMS Doctors and Clinicians file53 · 68.8% here, 71.3% nationally
  • Not updated in five years or more32 · 41.6% here, 54.3% nationally
  • Median graduation year2006 · the 53 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RH0003X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

77 NPPES records list hematology & oncology physician (207RH0003X) as their primary taxonomy with a practice address in Maine: 5.5 per 100,000 residents against 4.2 nationally (50 states and D.C.). Brewer has 15 of them (19%).

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. New Hampshire76
  2. West Virginia78
  3. Nebraska80
  4. District of Columbia81

States with a similar rate per 100,000

  1. Connecticut5.5
  2. Illinois5.3
  3. Maryland5.1
  4. New York5.9

The largest states

  1. California1,583
  2. New York1,163
  3. Texas922
  4. Florida818
  5. Pennsylvania784

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.