NPPES file of Aug 9, 2026

Internal Medicine Physician in Arizona

2,853 NPPES records list internal medicine physician with a practice address in Arizona, 38 per 100,000 residents, the 27th highest rate of 51. Phoenix and Tucson have the most; each record links to the provider's NPI and the Arizona license search. Page 37 of 58.

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).

Phoenix has the most, 695

  1. Phoenix695
  2. Tucson651
  3. Scottsdale344
  4. Mesa157
  5. Chandler93

Internal Medicine Physician records in Arizona

  1. Phuong Nguyen, D.O.Scottsdale, AZ 852511346621083
  2. Phuong Nguyen, MDGlobe, AZ 855011376503490
  3. Steven Nguyen, D.O.Phoenix, AZ 850481841483229
  4. Thanh Nguyen, M.D.Mesa, AZ 852101508945569
  5. Thi Nguyen, M.D.Tucson, AZ 857191063709947
  6. Thuy-Ngan Nguyen, D.O.Gilbert, AZ 852971528470614
  7. Kathleen Nichols, MDAvondale, AZ 853921245241215
  8. Mark Nichols, MDTucson, AZ 857121346298098
  9. Somanjit Nijjar, MDGoodyear, AZ 853951235750126
  10. Romeo Nillas, MDBuckeye, AZ 853261922055722
  11. Divya Pramod Nimmatoori, MDPhoenix, AZ 850321235727215
  12. Tracy Nimmerrichter-BurgessFort Defiance, AZ 865041346295649
  13. Marius Nistor, M.D.Sacaton, AZ 851471932288495
  14. Stephen Njoroge, MDYuma, AZ 853641235368176
  15. Keun No, M.D.Tucson, AZ 857151184762866
  16. Patrick Noonan, D.O.Tucson, AZ 857501346561040
  17. Bita Nooranbakht, M.D.Phoenix, AZ 850041588650220
  18. Muhammad Noorani, M.D.Kingman, AZ 864091861876542
  19. Tarreq NooriPhoenix, AZ 850081801250071
  20. Cori Norgaard, DOGlendale, AZ 853081801008834
  21. Shirley Noronha, MDLake Havasu City, AZ 864031467566141
  22. Bryant Noss, MDScottsdale, AZ 852591013705870
  23. Sarah Notter, M.D.Williams, AZ 860461194042366
  24. Soheila Nouri, M.D.Tucson, AZ 857121124016852
  25. Jodi Novak, D.O.Fountain Hills, AZ 852681659371425
  26. Steven Nuanes, D.O.,Phoenix, AZ 850851922413285
  27. Glenn Nudelman, M.D.Lake Havasu City, AZ 864061346242427
  28. Asael Nunez, MDTucson, AZ 857131609623263
  29. Johannes Nurman, M.D.Casa Grande, AZ 852221770775082
  30. Anupama Nutakki, M.D.Mesa, AZ 852041386605657
  31. Tochukwu Nwafor, MDGilbert, AZ 852971518931690
  32. Chikwendu Nwosu, MDMesa, AZ 852121104994375
  33. Sean O'Brien, D.O.Nogales, AZ 856211912994500
  34. Marissa O'Callaghan, MB BCH BAOScottsdale, AZ 852591043743875
  35. Nickey O'Coyne, M.D.Peoria, AZ 853811417275348
  36. Cheryl O'Malley, M.D.Phoenix, AZ 850061588633226
  37. Laura O'Malley, M.D.Phoenix, AZ 850181366402216
  38. Sharon Obadia, M.D.Phoenix, AZ 850061902875909
  39. Esther ObenPhoenix, AZ 850131932500360
  40. Gabrielle Ochoa, MDTucson, AZ 857451023096674
  41. Michael Oconnor, M.D.San Tan Valley, AZ 851401851569578
  42. William Odette, M.D.Tucson, AZ 857151932197670
  43. Nora Odisho Domit, DOTucson, AZ 857241548606957
  44. Leo Odle, DOGilbert, AZ 852971073601415
  45. Obianuju Odoh, MDScottsdale, AZ 852591982543302
  46. Oladapo Odumosu, MDCave Creek, AZ 853311104890854
  47. Nariel Offomah, MDTucson, AZ 857101851380489
  48. Stanley Ofori, MDTucson, AZ 857451093793648
  49. Chioma Ogala, M.DMarana, AZ 856531528455391
  50. Gabriel Ogbonnaya, M.D.Mesa, AZ 852121972502862

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

Arizona ranks 27 of 51 per resident

  1. Nebraska41
  2. Washington39
  3. Nevada38
  4. Arizona38
  5. Louisiana38
  6. North Carolina37
  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.

75.2% 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. Arizona75.2%
  2. United States78.7%

Internal Medicine Physician records in Arizona, measured

  • In a Medicare file2,145 of 2,853 · 75.2% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file1,645 · 57.7% here, 61.4% nationally
  • Not updated in five years or more1,449 · 50.8% here, 55.4% nationally
  • Median graduation year2003 · the 1,643 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

2,853 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Arizona: 38 per 100,000 residents against 44 nationally (50 states and D.C.). Phoenix has 695 of them (24%).

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. Minnesota2,632
  2. Washington3,079
  3. Connecticut2,623
  4. Missouri2,604

States with a similar rate per 100,000

  1. Nevada38.5
  2. Louisiana38.2
  3. North Carolina37.4
  4. Tennessee36.4

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.