NPPES file of Aug 9, 2026

Nephrology Physician in Pennsylvania

651 NPPES records list nephrology physician with a practice address in Pennsylvania, 5 per 100,000 residents, the 6th highest rate of 51. Philadelphia and Pittsburgh have the most; each record links to the provider's NPI and the Pennsylvania license search. Page 4 of 14.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RN0300X · method

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

Philadelphia has the most, 175

  1. Philadelphia175
  2. Pittsburgh71
  3. Allentown41
  4. Danville21
  5. Lancaster18

Nephrology Physician records in Pennsylvania

  1. Sean Dorrell, MDExton, PA 193411053362210
  2. Adam Dratch, MDBethlehem, PA 180151891798096
  3. Jeanne Dreier, D.O.Wilkes Barre, PA 187021063681518
  4. Joseph Dreier, D.O.Wilkes Barre, PA 187021508035940
  5. Darren Dreyfus, D.O.Erie, PA 165021417958083
  6. Anna Dubyanskite, MDPhiladelphia, PA 191521134230923
  7. Margaret Duffy, MDAllentown, PA 181031518233881
  8. Brandon Dunmyre, DOPittsburgh, PA 152121295197986
  9. Michael Dunn, D.O.Bethlehem, PA 180151407938772
  10. Jeremiah Eagen, MDScranton, PA 185101487659744
  11. Arnold Eiser, MDDarby, PA 190231114061892
  12. Yvonne El Kassis, M.DPhiladelphia, PA 191041417202235
  13. Brigid Ellis, D.O.Wyomissing, PA 196101992932339
  14. Mohamed Elnour, M.D., FASNCamp Hill, PA 170111679565527
  15. George Ezeji, M.DCamp Hill, PA 170111073908695
  16. Bonita Falkner, M.DPhiladelphia, PA 191071790706869
  17. Dianna Falkowitz, MDDarby, PA 190231457435976
  18. Umar Farooq, M.DHershey, PA 170331972796621
  19. Oyinlola Fasehun, MDPhiladelphia, PA 191401184328411
  20. Harold Feldman, MDPhiladelphia, PA 191041467477455
  21. David Fellenbaum, PACPhiladelphia, PA 191071184707895
  22. Eric Fels, D.O.Allentown, PA 181031821089590
  23. Robert Ferguson, M.D.Greensburg, PA 156011417958679
  24. Edward Filippone, MDPhila, PA 191451649211129
  25. Martha Finn, M.D.Montoursville, PA 177541619948163
  26. John Firpo, MDHavertown, PA 190831275507675
  27. Clara Fischman, MD MSCRPhiladelphia, PA 191041124588785
  28. Margaret Fitzsimons, MB.BHershey, PA 170331720036445
  29. Frederick Fleszler, MDAllentown, PA 181031588758353
  30. John Fontanilla, M.D.Philadelphia, PA 191241669688412
  31. Francis FotiErie, PA 165501205835741
  32. Sebastian Franco, MDPhiladelphia, PA 191041992266977
  33. George FrancosPhiladelphia, PA 191071457374530
  34. Christopher Frankel, M.D.Langhorne, PA 190471952336182
  35. Lawrence Freitas, M.D.Willow Grove, PA 190901477500718
  36. George Frem, MDJohnstown, PA 159051053315549
  37. Linda Fried, M.D.Pittsburgh, PA 152401932202488
  38. Laurence FriedmanPittsburgh, PA 152131740266659
  39. Richard Friedman, M.D.Philadelphia, PA 191181265415889
  40. Peter Fumo, M.D.Philadelphia, PA 191181366425092
  41. Alaine Gada, MDCamp Hill, PA 170111871794339
  42. Crystal Gadegbeku, MDPhiladelphia, PA 191401013099910
  43. Sushmitha Gandra, MDLanghorne, PA 190471265643563
  44. Daniel Gandy, DOMontoursville, PA 177541366427205
  45. Keerthana Gangadharan, MDPittsburgh, PA 152131528613700
  46. Jessie Ganjoo, MDMeadville, PA 163351326015587
  47. Richard Gargiulo, D.O.Philadelphia, PA 191411154697027
  48. William Gaughan, MDPhiladelphia, PA 191411255390035
  49. Wallace Gauntner, M.D.Pittsburgh, PA 152021114929403
  50. Mragank GaurDanville, PA 178221598516874

Source: CMS NPPES, primary taxonomy 207RN0300X: records by practice city and the list of records, file of Aug 9, 2026.

Pennsylvania ranks 6 of 51 per resident

  1. Maryland5.5
  2. New York5.4
  3. Delaware5.0
  4. Pennsylvania5.0
  5. Louisiana4.8
  6. New Jersey4.7
  7. 50 states and D.C.4.0

Source: CMS NPPES, primary taxonomy 207RN0300X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

84.2% of these records appear in a Medicare file, against 85.8% 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. Pennsylvania84.2%
  2. United States85.8%

Nephrology Physician records in Pennsylvania, measured

  • In a Medicare file548 of 651 · 84.2% here, 85.8% nationally
  • In the CMS Doctors and Clinicians file468 · 71.9% here, 76.0% nationally
  • Not updated in five years or more371 · 57.0% here, 54.9% nationally
  • Median graduation year2001 · the 468 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RN0300X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

651 NPPES records list nephrology physician (207RN0300X) as their primary taxonomy with a practice address in Pennsylvania: 5 per 100,000 residents against 4 nationally (50 states and D.C.). Philadelphia has 175 of them (27%).

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. Illinois572
  2. Ohio499
  3. Florida840
  4. New Jersey433

States with a similar rate per 100,000

  1. Delaware5.0
  2. Louisiana4.8
  3. Puerto Rico4.7
  4. New York5.4

The largest states

  1. California1,468
  2. Texas1,159
  3. New York1,049
  4. Florida840
  5. Illinois572

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.