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 22 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. Joshua Case, M.D.Pittsburgh, PA 152151750608121
  2. Patrick Casey, DO, MSLancaster, PA 176021114603248
  3. Andrew Cash, D.O., P.C.Indiana, PA 157011790782555
  4. Ian Carlo Casimiro, M.DPhiladelphia, PA 191091881857969
  5. Herbert Caskey, MDBala Cynwyd, PA 190041750848693
  6. Daniel Casper, MDNew Kensington, PA 150681912971219
  7. Renee Cassidy, MDWest Chester, PA 193801497890719
  8. Wilhelm CastellonClarion, PA 162141821471327
  9. Dominic Castrignano, D.O.Wilkes Barre, PA 187111770594731
  10. Frank Castrina, M.D.Carlisle, PA 170131558482265
  11. Rafael CastroLanghorne, PA 190471487604724
  12. Robert Cato, MDPhiladelphia, PA 191041881626174
  13. Taylor Caton, MDPhiladelphia, PA 191401336832294
  14. Rachel Causak, MDLebanon, PA 170421407947195
  15. Kelly Cavalli, D.O.Plymouth Meeting, PA 194621013178961
  16. Joniqua Ceasar, MDPhiladelphia, PA 191391376163147
  17. Juan Celedon, M.D., DR.P.H.Pittsburgh, PA 152241629067186
  18. Berk Celik, MDPittsburgh, PA 152131952184103
  19. Lee Celio, M.D.Philadelphia, PA 191521871592436
  20. Stephen Cenedella, MDFranklin, PA 163231649249632
  21. Robert Centrone, DOAston, PA 190141427060151
  22. Lisa Ceraolo, MDTowanda, PA 188481326264383
  23. Michael Cerino, D.O.East Norriton, PA 194031740462795
  24. Mary Certo-Rossetti, DOGibsonia, PA 150441467428094
  25. William Ceyrolles, M.D.Pittsburgh, PA 152131417185356
  26. Vinod Chacko, M.D.Wyomissing, PA 196101528245941
  27. Daria Chacon, MDPhiladelphia, PA 191341275735672
  28. Melissa Chai, MDPhiladelphia, PA 191401104405638
  29. Paula Chaitas, M.D.Abington, PA 190011376757013
  30. Krisda Chaiyachati, MD, MPHPhiladelphia, PA 191041174812366
  31. Raja Chandra Chakinala, MDSayre, PA 188401023460714
  32. Alakananda Chakrabarty, MDCoal Township, PA 178661205808151
  33. Raja Chakrapani, MDTurtle Creek, PA 151451366424541
  34. Shourjo Chakravorty, MDMedia, PA 190631770108417
  35. Richard Chalfin, M.D.West Chester, PA 193801063533008
  36. Robert Chalfin, MDWarminster, PA 189741841295318
  37. Divya Chalikonda, M.D.Philadelphia, PA 191071124473921
  38. Kenneth Challener, M.D.Meadville, PA 163351881626471
  39. Mathai Chalunkal, MD, MRCP(UK)Bethlehem, PA 180151417148677
  40. Govind ChamarthiPhiladelphia, PA 191411609492560
  41. Emily Chambers, D.O.Pittsburgh, PA 152121902184831
  42. Jennifer Chambers, MDHershey, PA 170331760431217
  43. Martin Chambers, MDPunxsutawney, PA 157671235179540
  44. Devindra Chamlagai, M.D.Harrisburg, PA 171011134810997
  45. Diego Chamorro Ortiz, MDPittsburgh, PA 152151003607250
  46. Vicky Champaneria, M.D.West Reading, PA 196111689013518
  47. Emily Chan, MDPhiladelphia, PA 191041548752223
  48. Joanne Chan, M.D.Hanover, PA 173311467426916
  49. Vijay Chandiramani, M.D.Sayre, PA 188401104090125
  50. Bronell Chandler, MDUpper Darby, PA 190821497890107

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.