NPPES file of Aug 9, 2026

Anesthesiology Physician in Arizona

1,473 NPPES records list anesthesiology physician with a practice address in Arizona, 20 per 100,000 residents, the 16th highest rate of 51. Phoenix and Tucson have the most; each record links to the provider's NPI and the Arizona license search. Page 20 of 30.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207L00000X · 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, 602

  1. Phoenix602
  2. Tucson298
  3. Scottsdale116
  4. Tempe65
  5. Chandler63

Anesthesiology Physician records in Arizona

  1. Paul Ng, M.D.Glendale, AZ 853081730134545
  2. Truc-Anh Nguyen, M.D.Tucson, AZ 857241215279971
  3. Tuyet Ha Nguyen, M.D.Phoenix, AZ 850041518128917
  4. Robert Nicholas, MDPhoenix, AZ 850041689641359
  5. Bradley Nichols, MDTucson, AZ 857191063406007
  6. Joe Nichols, MDPhoenix, AZ 850041578536322
  7. Kathleen Nichols, MDTucson, AZ 857411033116462
  8. David Nielsen, M.D.Mesa, AZ 852061639513773
  9. Jeremy Nielsen, M.D.Flagstaff, AZ 860011003127341
  10. Dominique Nielson, DOTucson, AZ 857191437894938
  11. Raymond Nierva, MDPhoenix, AZ 850211326179003
  12. Rhonda Nieto, M.D.Tucson, AZ 857411093711624
  13. Yuvraj Nijjar, M.D.Gilbert, AZ 852341124382973
  14. Katherine Nixon, MDPhoenix, AZ 850121952789166
  15. Kimberley Njoroge, D.O.Tucson, AZ 857121982854691
  16. Wallace Nogami, MDTucson, AZ 857241548350648
  17. Erum Noon, MDPhoenix, AZ 850201982686747
  18. Omid Noormohammadi, M.D.Tucson, AZ 857481104111673
  19. William Nordlie, MDTempe, AZ 852821164492328
  20. Rafael Noriega, M.D., MPHPhoenix, AZ 850041063404895
  21. Jason Norman, MDPhoenix, AZ 850121235475369
  22. Ryan Norman, MDScottsdale, AZ 852601114423779
  23. Jon Nottingham, MDGilbert, AZ 852341851337240
  24. Marina Novack, CRNATucson, AZ 857121649742990
  25. Thomas Nyberg, MDPhoenix, AZ 850041659343473
  26. Shane Nylin, MDGlendale, AZ 853061942762042
  27. Sang O, D.OPhoenix, AZ 850121255597951
  28. Christopher O'Barr, MDPhoenix, AZ 850161750586947
  29. Roy O'Neil, DOPhoenix, AZ 850231275911968
  30. Christopher O'Neill, MDTucson, AZ 857041063406759
  31. Raymond Oakes, MDPhoenix, AZ 850121720053960
  32. Wayne Oakeson, MDTucson, AZ 857191083608756
  33. Rafee Obaidi, M.D.Phoenix, AZ 850121346560737
  34. Piyathida Obert, MDTucson, AZ 857241386227296
  35. Matthew Offerdahl, MDTucson, AZ 857121891750766
  36. Michael Ofori, M.D.Phoenix, AZ 850131962455782
  37. Eric Ogle, M.D.Phoenix, AZ 850121356753727
  38. Festus OhanScottsdale, AZ 852511891256905
  39. Chinwe Okoye, M.D.Phoenix, AZ 850161205066990
  40. Alexander Olausson, MDChandler, AZ 852241639759889
  41. Joshua Oliver, M.D.Oro Valley, AZ 857551477973501
  42. Stanley Oliverius, MDPhoenix, AZ 850041477513828
  43. Ellen Olson, MDPhoenix, AZ 850041457399248
  44. Thomas On, M.D.Phoenix, AZ 850121831166685
  45. Reginald Opara, M.D.Phoenix, AZ 850211528064151
  46. Michael Ortman, MDPhoenix, AZ 850131114556248
  47. Stephen Osgood, M.D.Gilbert, AZ 852961861557472
  48. H Osmussen, MDPhoenix, AZ 850041891765087
  49. Tiffany Otero, MDScottsdale, AZ 852591447780481
  50. Charles Otto, MDTucson, AZ 857241225118540

Source: CMS NPPES, primary taxonomy 207L00000X: records by practice city and the list of records, file of Aug 9, 2026.

Arizona ranks 16 of 51 per resident

  1. Maryland20
  2. Maine20
  3. Montana20
  4. Arizona20
  5. Utah20
  6. California19
  7. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 207L00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

73.2% of these records appear in a Medicare file, against 73.7% 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. Arizona73.2%
  2. United States73.7%

Anesthesiology Physician records in Arizona, measured

  • In a Medicare file1,078 of 1,473 · 73.2% here, 73.7% nationally
  • In the CMS Doctors and Clinicians file984 · 66.8% here, 67.2% nationally
  • Not updated in five years or more879 · 59.7% here, 57.8% nationally
  • Median graduation year2003 · the 984 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207L00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,473 NPPES records list anesthesiology physician (207L00000X) as their primary taxonomy with a practice address in Arizona: 20 per 100,000 residents against 18 nationally (50 states and D.C.). Phoenix has 602 of them (41%).

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. North Carolina1,482
  2. Virginia1,453
  3. Indiana1,448
  4. Georgia1,410

States with a similar rate per 100,000

  1. Montana20.0
  2. Utah19.6
  3. Maine20.1
  4. California19.4

The largest states

  1. California7,571
  2. New York5,062
  3. Texas4,635
  4. Florida3,375
  5. Illinois2,575

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.