NPPES file of Aug 9, 2026

Pulmonary Disease Physician in California

1,443 NPPES records list pulmonary disease physician with a practice address in California, 3.7 per 100,000 residents, the 38th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 19 of 29.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RP1001X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 153

  1. Los Angeles153
  2. San Diego100
  3. San Francisco96
  4. Stanford50
  5. Sacramento47

Pulmonary Disease Physician records in California

  1. Albert Nadjarian, MD, MPHOakland, CA 946111457883258
  2. Roland Nador, MDStanford, CA 943051639118508
  3. Mohammad Nahed, MD FCCPMission Hills, CA 913451043218563
  4. Payam Nahid, MD MPHSan Francisco, CA 941101366466591
  5. Elliot Naidus, MDBurlingame, CA 940101760821979
  6. Tej Naik, M.D.Fontana, CA 923351801920806
  7. Viswam Nair, MDBerkeley, CA 947051336336460
  8. Wisam Naji, MDValencia, CA 913551407119738
  9. Rama Nandipati, M.DMerced, CA 953401962583096
  10. Syed Naqvi, M.D.Newport Beach, CA 926631518037225
  11. Sohail Naseem, M.D.Marysville, CA 959011578582193
  12. Nicolas Nassar, MDSan Bernardino, CA 924081104851609
  13. Manjari Nathan, M.D.Walnut Creek, CA 945981033386503
  14. Gergana Nelson, MDOxnard, CA 930361972846954
  15. Pritam Neupane, MBBSCarmichael, CA 956081801939772
  16. Andrew Newman, M.D.Atherton, CA 940271962575944
  17. Michael Newman, D.O.San Diego, CA 921201376697797
  18. Julie NgSan Francisco, CA 941101306141429
  19. Tarik Ngab, M.D.San Diego, CA 921031730344078
  20. Sharon Ngan, MDPanorama City, CA 914021417072919
  21. Dallis Ngo, D.O., M.S.Pomona, CA 917671174055149
  22. Christopher Nguyen, M.D.Oakland, CA 946111013218544
  23. Duc Nguyen, MDSimi Valley, CA 930651306945365
  24. Dung Nguyen, MDFontana, CA 923351215004031
  25. Elaine NguyenMoreno Valley, CA 925551386092815
  26. Kevin Nguyen, DOMonterey Park, CA 917541821655242
  27. Minh Nguyen, MDConcord, CA 945201750563029
  28. Trung Nguyen, DOAnaheim, CA 928071831282268
  29. Siyuan Ni, M.D.Burlingame, CA 940101265875728
  30. Catalin Nicola, M.D., PH.D.Valencia, CA 913551558519470
  31. Mark Nicolls, MDStanford, CA 943051497845176
  32. Martin Nielsen, M.D.Oceanside, CA 920561760400550
  33. Jamshid Niknam, M.D.Inglewood, CA 903011134132798
  34. Kia NikoomaneshBurbank, CA 915051902260375
  35. Merrill Nisam, MDLarkspur, CA 949391205824067
  36. Catherine Nobel, MDLos Angeles, CA 900271184791089
  37. Anna Noble, MDWest Hollywood, CA 900481558591800
  38. Paul Noble, MDWest Hollywood, CA 900481942286307
  39. Dennis Novak, MDNewport Beach, CA 926631336158211
  40. Richard Nusser, MDOakland, CA 946091013979525
  41. Catherine Oberg, M.D.Torrance, CA 905051558633503
  42. James Obrasky, MDNational City, CA 919501922056670
  43. Scott Oh, D.O.Los Angeles, CA 900331164507331
  44. Julie Olsson, MDStanford, CA 943051013042019
  45. Theodore Omachi, M.D.San Francisco, CA 941181629006846
  46. Muna Omar, MDRedding, CA 960011851670335
  47. Mher Onanyan, M.D.Mission Hills, CA 913451861755241
  48. Ami Oren, M.D.Los Angeles, CA 900311316966013
  49. Maly Oron, M.D.Santa Cruz, CA 950621891139762
  50. Assad Oskuei, M.D.Los Alamitos, CA 907201528313210

Source: CMS NPPES, primary taxonomy 207RP1001X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 38 of 51 per resident

  1. Iowa3.9
  2. Arizona3.8
  3. South Carolina3.8
  4. California3.7
  5. Oklahoma3.7
  6. Arkansas3.7
  7. 50 states and D.C.4.6

Source: CMS NPPES, primary taxonomy 207RP1001X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

84.4% of these records appear in a Medicare file, against 85.0% 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. California84.4%
  2. United States85.0%

Pulmonary Disease Physician records in California, measured

  • In a Medicare file1,218 of 1,443 · 84.4% here, 85.0% nationally
  • In the CMS Doctors and Clinicians file1,062 · 73.6% here, 74.9% nationally
  • Not updated in five years or more795 · 55.1% here, 53.7% nationally
  • Median graduation year2002 · the 1,061 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RP1001X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,443 NPPES records list pulmonary disease physician (207RP1001X) as their primary taxonomy with a practice address in California: 3.7 per 100,000 residents against 4.6 nationally (50 states and D.C.). Los Angeles has 153 of them (11%).

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. New York1,230
  2. Florida1,045
  3. Texas967
  4. Pennsylvania779

States with a similar rate per 100,000

  1. Oklahoma3.7
  2. Arkansas3.7
  3. South Carolina3.8
  4. Hawaii3.6

The largest states

  1. New York1,230
  2. Florida1,045
  3. Texas967
  4. Pennsylvania779
  5. Ohio659

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.