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 13 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. Aftab Hussain TuriPhiladelphia, PA 191071093543191
  2. Laurence Turka, MDPhiladelphia, PA 191041780619841
  3. Zia Umruddin, MDPottstown, PA 194641588681365
  4. Kathryn Ussai, M.D.Allentown, PA 181031396779633
  5. Suneetha Vaddineni, MDHarrisburg, PA 171111891953592
  6. Sergio Vaisman, MDPottstown, PA 194641063487783
  7. Debbie Valsan, DOSpringfield, PA 190641700226354
  8. Joanne Van Dask, CRNPLancaster, PA 176041093767964
  9. Gregory Varghese, D.O.Allentown, PA 181031922364066
  10. Nicholas Varvarelis, D.O.Palmerton, PA 180711164603247
  11. Anton Verbine, MDJohnstown, PA 159041881038990
  12. Navin Verma, MDHershey, PA 170331346299625
  13. Vikram Verma, M.D.Allentown, PA 181031194983189
  14. Arul Vigg, MDYork, PA 174021568751360
  15. Ihab Wahba, MDPhiladelphia, PA 191041578578084
  16. Rajni Wallia, MDClairton, PA 150251942398219
  17. Thomas Ward, M.D.Latrobe, PA 156501992770812
  18. Alan Wasserstein, MDPhiladelphia, PA 191041164457222
  19. Mary Waybill, MDHarrisburg, PA 171041558565937
  20. Gabriel Weinberg, D.O.Wexford, PA 150901891797189
  21. Marc Weiner, MDLancaster, PA 176041073565263
  22. Steven Weisbord, MD, MSCPittsburgh, PA 152401336247105
  23. James Weiss, M.D.Pittsburgh, PA 152241407878887
  24. Roberta Weiss, M.D.Wynnewood, PA 190961124347323
  25. Cynthia West, M.D.Mechanicsburg, PA 170501316923543
  26. George Westby, M.D.Upland, PA 190131063450849
  27. Benjamin Wilcox, MDAllentown, PA 181031407897820
  28. Clara WilsonPhiladelphia, PA 191041740868058
  29. Stephanie Wirtshafter, DOPhiladelphia, PA 191181679030605
  30. Charles Wolf, M.D.Ardmore, PA 190031265774467
  31. Allen Wolfert, M.D.Bridgeville, PA 150171730165960
  32. Wei-Lung Sam Wu, MDErie, PA 165021922149350
  33. Qizhi Xie, M.D.Bridgeville, PA 150171801872049
  34. Faahud Yafai, M.D.Springfield, PA 190641548205867
  35. Jordana YahrPittsburgh, PA 152401386273126
  36. Taher Yahya, M.D.Danville, PA 178221013969872
  37. Karen Yoder, PACExton, PA 193411982656864
  38. Hanning YouPhiladelphia, PA 191401124555404
  39. Steven Young, DOWilkes Barre, PA 187021447347018
  40. Bo Yu, MDPhiladelphia, PA 191401376023382
  41. Melvin Yudis, M.D.Willow Grove, PA 190901497854996
  42. Diana Yusim, MDLatrobe, PA 156501982167599
  43. Syed Haris Mustafa ZaidiAllentown, PA 181011841186517
  44. Anthony Zappacosta, M.D.Bryn Mawr, PA 190101801800479
  45. Randy Zelen, M.D.Meadville, PA 163351831192145
  46. May Christine Joy Zeta, M.D.Chambersburg, PA 172011265787642
  47. Jingjing Zhang, M.D.Philadelphia, PA 191071437386141
  48. Zi Zhang, M.DWynnewood, PA 190961487005351
  49. Brian Zimmer, D.O.Blawnox, PA 152381962430348
  50. Fuad Ziyadeh, MDPhiladelphia, PA 191041003841412

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.