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 21 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. Michael Guzman, D.O.Davis, CA 956161144584756
  2. Ronald Ray Guzman, MDRoseville, CA 956611205061595
  3. Duke Ha, D.O.Oroville, CA 959661376981118
  4. Edward Ha, M.D.Los Angeles, CA 900951285818518
  5. Mojan Habibi, M.D.Whittier, CA 906021326591322
  6. Hannah Hackbart, MDWest Hollywood, CA 900481659012441
  7. Josephine Haduong, M.D.Los Angeles, CA 900271780857573
  8. Gary Haffner, MDFt Bidwell, CA 961121407950710
  9. George HafzallaLoma Linda, CA 923541912640103
  10. Lillian Hage-Fischer, MDSacramento, CA 958231386796514
  11. Syed Haider, M.D.Sacramento, CA 958191063520120
  12. Dorothy Hairston, M.D.National City, CA 919501114973633
  13. Hayssam Hajar, MDRoseville, CA 956611043398761
  14. Nima Hajazimzanjani, MDLa Jolla, CA 920371093391815
  15. Michael Hajduk, MDEmeryville, CA 946081215002753
  16. Asma Haji Datoo, MDMission Hills, CA 913451023647039
  17. Maryam Hajiabbasi, MDSanta Monica, CA 904041679150197
  18. Rafieh Hajiani, M.D.Carmichael, CA 956081659472058
  19. Ashim Hajra, M.D.Oakland, CA 946091730454182
  20. Rami HalasehSan Francisco, CA 941151992459754
  21. Christopher Halbur, MDLos Angeles, CA 900951780386060
  22. Jamal Haleem, MDSacramento, CA 958161568422079
  23. Olivia Hall, MDLos Angeles, CA 900951568103869
  24. Laura Hallahan, M.D.Santa Cruz, CA 950651093155756
  25. Katherine Halper, MDLos Angeles, CA 900951669112413
  26. Jeffrey HalperinPanorama City, CA 914021841752649
  27. Aram HambardzumyanHanford, CA 932301952807851
  28. Farah Hamdard, M.D.Escondido, CA 920291205984945
  29. Coretta Hamlin, M. DRedding, CA 960011164622155
  30. Forrest Hamlin, DOSan Jose, CA 951121225558349
  31. Helen Hammer, MDSanta Rosa, CA 954031962586933
  32. Gregory Hammett, D.O.Santa Barbara, CA 931051508266727
  33. Charles HammondSan Diego, CA 921031033641816
  34. Richard Hamner, MDSanta Cruz, CA 950651588660401
  35. Stephanie Han, MDWest Hollywood, CA 900481922743129
  36. Win Han, MDSan Francisco, CA 941431619110384
  37. Gina Hana, MDLos Angeles, CA 900331942950456
  38. Matthew Hanchett, M.D.Anaheim, CA 928061346405644
  39. Aisha Hanif, MDSacramento, CA 958161144635731
  40. Natalie Hanks, MDPalm Springs, CA 922621467026138
  41. John Hann, M.D.Orange, CA 928681689968224
  42. Rema Hanna, MDSanta Cruz, CA 950651265571202
  43. Ram Hanno, M.D.Monterey, CA 939401780003525
  44. Joshua Hantman, M.D.Auburn, CA 956021346351574
  45. Anil Hanuman, D,O.Pasadena, CA 911051023101813
  46. Jingping Hao, M.D.Antioch, CA 945311710236898
  47. Alina Haq, M.D.Castro Valley, CA 945461669665436
  48. Ubayd HaqSan Francisco, CA 941431598467961
  49. Bianca Harabor, M.D.Sacramento, CA 958161699981654
  50. Cameron Harding, MDOrange, CA 928681194133389

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.