NPPES file of Aug 9, 2026

Internal Medicine Physician in Pennsylvania

7,300 NPPES records list internal medicine physician with a practice address in Pennsylvania, 56 per 100,000 residents, the 11th highest rate of 51. Philadelphia and Pittsburgh have the most; each record links to the provider's NPI and the Pennsylvania license search. Page 146 of 146.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 1,855

  1. Philadelphia1,855
  2. Pittsburgh750
  3. Allentown218
  4. Harrisburg184
  5. York164

Internal Medicine Physician records in Pennsylvania

  1. Sofia Zhang, M.D.Philadelphia, PA 191401750079364
  2. Yijun Zhang, MDBeaver, PA 150091477865525
  3. Zhongyuan ZhangPhiladelphia, PA 191411629710769
  4. Wei Zhao, MDPhiladelphia, PA 191401437732864
  5. Yichao Zhao, M.D.Philadelphia, PA 191071760918874
  6. Zirong Zhao, M.D.,Pittsburgh, PA 152151629055611
  7. Aaron Zheng, MDAllentown, PA 181031790532232
  8. Dan Zheng, M.D.Scranton, PA 185101235537622
  9. Joe Zhou, MDPalmerton, PA 180711205821469
  10. Zhihong Zhou, MDAbington, PA 190011730372632
  11. Ying Zhu, MDLower Gwynedd, PA 190021801357926
  12. Ilya Zhuplatov, MDPhiladelphia, PA 191021063073278
  13. Mark Zibelman, MDPhiladelphia, PA 191481205934890
  14. Jacqueline Ziegman, M.D.Pittsburgh, PA 152131871286039
  15. David Zielinski, M.D.Pittsburgh, PA 152401073620951
  16. Jason Zielinski, D.O.Bethlehem, PA 180151508896929
  17. Luke Zigrossi, D.O.Butler, PA 160011457633380
  18. Zeke Zikria, MDPhiladelphia, PA 191021356570725
  19. Alla Zilbering, MDDrexel Hill, PA 190261063643468
  20. William Zillweger, M.D.Pittsburgh, PA 152371285607002
  21. Debra Zimmerman, DOWyomissing, PA 196101508832262
  22. Erica Zimmerman, MDPittsburgh, PA 152131154549889
  23. George Zimmerman, M.D.Pittsburgh, PA 152201447214978
  24. Karl Zimmerman, MDKennett Square, PA 193481154439966
  25. Lawrence Zimmerman, MDLemoyne, PA 170431780675397
  26. Ryan Zimmerman, D.O.West Reading, PA 196111861835241
  27. Areg ZingiryanPhiladelphia, PA 191401942689799
  28. Steven Zinn, MDPhiladelphia, PA 191271376589168
  29. Barry Ziring, M.D.Philadelphia, PA 191071447284674
  30. David Zisa, M.D., PH.D.Wyomissing, PA 196101962763789
  31. John Zisko, M.D.Pittsburgh, PA 152321578680070
  32. Jordan Zivan, MDPhiladelphia, PA 191401902739345
  33. Brooke Zlotshewer, MDPhiladelphia, PA 191401952092165
  34. Doha Zoarob, MDJohnstown, PA 159051225713217
  35. James Zola, M.D.Selinsgrove, PA 178701225081433
  36. Janet Zolli, MDPhoenixville, PA 194601699755843
  37. Bernard Zoranski, DOAston, PA 190141184625840
  38. George Zotalis, MDRadnor, PA 190871902065162
  39. Fahad Zubair, MDPittsburgh, PA 152241205178134
  40. Tayyaba Zubair, MDPaoli, PA 193011437787959
  41. Martha Zubritzky, MDWyndmoor, PA 190381720044175
  42. Shana Zucker, MD, MPH, MS, MSEDPittsburgh, PA 152131114556438
  43. P. Zug, M.D.Lewisburg, PA 178371306869292
  44. Ann Zumbo, MDBloomsburg, PA 178151316923949
  45. Jill Zupetic, M.D.Pittsburgh, PA 152131487064267
  46. Claire ZurloPhiladelphia, PA 191071588244883
  47. Martin Zurmuhl, MDSellersville, PA 189601467485805
  48. Kristin Zvonar, M.D.Beaver Falls, PA 150101639102916
  49. Donna Zwas, M.D.Philadelphia, PA 191071346260189
  50. Alan Zweben, MDChester, PA 190131710047022

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Pennsylvania ranks 11 of 51 per resident

  1. Delaware58
  2. Illinois58
  3. Michigan57
  4. Pennsylvania56
  5. Vermont50
  6. Oregon50
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

77.9% of these records appear in a Medicare file, against 78.7% 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. Pennsylvania77.9%
  2. United States78.7%

Internal Medicine Physician records in Pennsylvania, measured

  • In a Medicare file5,684 of 7,300 · 77.9% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file4,212 · 57.7% here, 61.4% nationally
  • Not updated in five years or more4,115 · 56.4% here, 55.4% nationally
  • Median graduation year2008 · the 4,208 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

7,300 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Pennsylvania: 56 per 100,000 residents against 44 nationally (50 states and D.C.). Philadelphia has 1,855 of them (25%).

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. Illinois7,238
  2. Massachusetts6,825
  3. Michigan5,735
  4. Texas9,175

States with a similar rate per 100,000

  1. Delaware58.1
  2. New York61.7
  3. Vermont50.4
  4. American Samoa50.1

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Illinois7,238

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.