NPPES file of Aug 9, 2026

Hospitalist Physician in California

3,099 NPPES records list hospitalist physician with a practice address in California, 8 per 100,000 residents, the 26th 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 40 of 62.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 208M00000X · 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, 229

  1. Los Angeles229
  2. San Diego173
  3. San Francisco161
  4. Sacramento155
  5. Palo Alto112

Hospitalist Physician records in California

  1. Robert Neilan, M.D.Fountain Valley, CA 927081689763724
  2. Parvin Nejatmahmoodaliloo, MDFrench Camp, CA 952311396312708
  3. Barbara Nelson, M.D.Redlands, CA 923731114966389
  4. Whitney Nelson, M.D.Irvine, CA 926181265973523
  5. Shadi Nemanpour, MDWest Hollywood, CA 900481194330696
  6. Amrita Nensey, M.D.Northridge, CA 913251801128806
  7. Cyrus Nensey, M.D.Northridge, CA 913251629331905
  8. Anamika Neralla, MDRedwood City, CA 940621437611522
  9. Namiko Nerio, D.O., M.S.Pasadena, CA 911051568747947
  10. Sina Neshatian, M.D.Mission Viejo, CA 926911750510913
  11. Rebecca Nessel, MDSan Francisco, CA 941431861439085
  12. Nelson Newberry, MDFremont, CA 945381821176405
  13. Aryan Nezamabadi, MDSalinas, CA 939011225449333
  14. Elayna Ng, MDSan Francisco, CA 941151497137285
  15. Gan Ng, MDLos Angeles, CA 900951588636641
  16. Grace NgLos Angeles, CA 900951508446758
  17. Jacky Ng, DOMountain View, CA 940401174264196
  18. Andrea Ngo, MDFairfield, CA 945331699863464
  19. Kim Ngoc Ngo, D.O.Santa Cruz, CA 950621528351079
  20. Tho Ngo, MDMountain View, CA 940401942646831
  21. Ton Ngo, MDSan Diego, CA 921231427007988
  22. Alexander Nguyen, D.O.Irvine, CA 926181265842470
  23. An NguyenIrvine, CA 926181609434414
  24. Ashley Nguyen, M.D.Newport Beach, CA 926631770970352
  25. Bang Nguyen, DOFullerton, CA 928351861477044
  26. Bic Nguyen, MDSanta Clara, CA 950511427135367
  27. Chidao Nguyen, DOWestminster, CA 926831780850198
  28. Clari Nguyen, D.O.San Diego, CA 921231124481098
  29. Dan Nguyen, M.D.San Diego, CA 921031700204294
  30. Dan-Thanh Nguyen, MDNewport Beach, CA 926631417533266
  31. Dung-Hoa Nguyen, M.D.Santa Barbara, CA 931051114039997
  32. Ha Nguyen, MDPalo Alto, CA 943041346628294
  33. Hanh Nguyen, D.O.Oroville, CA 959661780946376
  34. Hien Nguyen, M.D.Irvine, CA 926181558591008
  35. Hoang Anh Nguyen, M.D.Orange, CA 928681407147440
  36. Huong Nguyen, M.D.Fresno, CA 937201922335603
  37. Johnny Nguyen, MDFolsom, CA 956301508442047
  38. Judy Nguyen, D.OSanta Cruz, CA 950621417391723
  39. Kevin Nguyen, MDSacramento, CA 958231366514119
  40. Khanh Nguyen, MDIrvine, CA 926181295710325
  41. Kristy NguyenConcord, CA 945201043773518
  42. Loan Nguyen, MDMission Viejo, CA 926911346477858
  43. Michael Nguyen, DOWoodland Hills, CA 913671285376392
  44. Michael Nguyen, DORiverside, CA 925011366939043
  45. Michelle Nguyen, DOPalo Alto, CA 943041033672993
  46. Mike Nguyen, D.O.Loma Linda, CA 923541215227624
  47. Minh Nguyen, M.D.Santa Clara, CA 950511346627478
  48. Peter Nguyen, MDOrange, CA 928681407483787
  49. Quan Nguyen, MDRoseville, CA 956611003994773
  50. Stefan NguyenLos Angeles, CA 900331952842221

Source: CMS NPPES, primary taxonomy 208M00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 26 of 51 per resident

  1. Utah8.3
  2. Ohio8.3
  3. Florida8.0
  4. California8.0
  5. Massachusetts7.5
  6. Nevada7.5
  7. 50 states and D.C.8.3

Source: CMS NPPES, primary taxonomy 208M00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

89.7% of these records appear in a Medicare file, against 90.5% 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. California89.7%
  2. United States90.5%

Hospitalist Physician records in California, measured

  • In a Medicare file2,779 of 3,099 · 89.7% here, 90.5% nationally
  • In the CMS Doctors and Clinicians file2,509 · 81.0% here, 83.1% nationally
  • Not updated in five years or more1,522 · 49.1% here, 39.1% nationally
  • Median graduation year2010 · the 2,505 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 208M00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

3,099 NPPES records list hospitalist physician (208M00000X) as their primary taxonomy with a practice address in California: 8 per 100,000 residents against 8.3 nationally (50 states and D.C.). Los Angeles has 229 of them (7%).

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 York2,067
  2. Florida1,817
  3. Texas1,587
  4. Illinois1,535

States with a similar rate per 100,000

  1. Guam7.8
  2. Ohio8.3
  3. Utah8.3
  4. Massachusetts7.5

The largest states

  1. New York2,067
  2. Florida1,817
  3. Texas1,587
  4. Illinois1,535
  5. Pennsylvania1,424

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.