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 95 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. Carrie Ogorek, MDPhiladelphia, PA 191041912910712
  2. Babatunde Ogunnaike, M.D.Bethlehem, PA 180151730615550
  3. Odunayo Ogunnaike, M.D.Paoli, PA 193011477900421
  4. Adrianna Oh, MDPittsburgh, PA 152191568029858
  5. Chioma Ohammah, M.D.Pittsburgh, PA 152191760007017
  6. Tony Ohanian, M.D.Bethlehem, PA 180151619382462
  7. Kevin Ohayer, MDPhiladelphia, PA 191041497015465
  8. Shiho Oide, M.D.Pittsburgh, PA 152321598959520
  9. Jason Ojeda, MDPhiladelphia, PA 191071295963445
  10. Fidelis Ojevwe, M.DYork, PA 174031124468293
  11. Saheed Ojo-Oniyun, M.DKing Of Prussia, PA 194061649333071
  12. Ifeanyi Okam, M.DPhiladelphia, PA 191111134508518
  13. Emi OkamotoPhiladelphia, PA 191331609286293
  14. Yulia Okhotina, M.D.Wyomissing, PA 196101538305560
  15. Roseline Okigbo, D.O.Bethlehem, PA 180151114307048
  16. Onyeka Okonkwo, MDPhiladelphia, PA 191071073710661
  17. Jessica Oladeinde, MDPhiladelphia, PA 191021831759380
  18. Matthew Olah, M.D.Bryn Mawr, PA 190101780842690
  19. Olubunmi Olarewaju, D.OPhiladelphia, PA 191141225324502
  20. Omolara Olasimbo, MDPhiladelphia, PA 191401639687163
  21. Erica Oldham, M.D.Reading, PA 196071497049589
  22. William Oleksak, M.D.Ford City, PA 162261023131307
  23. Jon Olenginski, DONanticoke, PA 186341033164215
  24. Michael Olenginski, DOEaston, PA 180451164271078
  25. Allison Oler, MDRadnor, PA 190871710934740
  26. Horace Olewiler, MDBethlehem, PA 180181063463057
  27. Andrew Olex, M.D.Norristown, PA 194011952480279
  28. Heather Olex, DONewtown Square, PA 190731689681918
  29. Seema Oli, MDMechanicsburg, PA 170501588351266
  30. Michael Oliver, D.O.Beaver, PA 150091679501431
  31. Stefan Olsen, MDPhiladelphia, PA 191041336909308
  32. Amanda Olson, D.O.Philipsburg, PA 168661609018274
  33. Sidra Omer, MDBethlehem, PA 180151427671874
  34. Temitope Omoladun-Tijani, MDPhiladelphia, PA 191141326778259
  35. Jubril Onaneye, DOWest Reading, PA 196111790170868
  36. Svetlana Onderko, D.O.York, PA 174021225217235
  37. Michael Ong, MDVandergrift, PA 156901639162969
  38. Ebenezer Oni, MDWest Reading, PA 196111215325238
  39. Ekinadose OniKennett Square, PA 193481760007942
  40. Ngozi Onuoha, MDPhiladelphia, PA 191491700832953
  41. Jaine Onwezi-Nwugwo, DOAllentown, PA 181031558159640
  42. Rose Onyeali, M.D.Philadelphia, PA 191071689028847
  43. Myoe Htet Htet Oo, MDWilliamsport, PA 177011386216737
  44. Yinn Shaung Ooi, M.D.Wynnewood, PA 190961013303304
  45. Kwasi Asamoah Opare-Addo, MDPhiladelphia, PA 191041528700234
  46. Madalina Opreanu, M.D.Erie, PA 165501477813400
  47. Simona Opris, MDAbington, PA 190011295073401
  48. Stephen Opsasnick, MDScranton, PA 185031326015322
  49. Max OranSpringfield, PA 190641659791754
  50. Allen Orehek, MDWaymart, PA 184721316027550

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.