NPPES file of Aug 9, 2026

Internal Medicine Physician in California

17,696 NPPES records list internal medicine physician with a practice address in California, 45 per 100,000 residents, the 17th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 188 of 354.

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).

Los Angeles has the most, 1,423

  1. Los Angeles1,423
  2. San Francisco1,318
  3. San Diego961
  4. Sacramento601
  5. Oakland432

Internal Medicine Physician records in California

  1. Victoria Lopez, MDPorterville, CA 932571255900585
  2. Patricia Lord, M.D.Auburn, CA 956031689098824
  3. David Lorenz, M.D.El Cajon, CA 920191477832582
  4. Karl LorenzLos Angeles, CA 900731912017740
  5. Vona Wright Lorenzana, M.D.Lafayette, CA 945491992752661
  6. Angeles Losada, MD, PHDChowchilla, CA 936101972628931
  7. Mariana Lotersztain, MDVacaville, CA 956871881128296
  8. Justin Lotfi, M.D.Redwood City, CA 940611760742498
  9. Lay-Hwa Lou, MDFremont, CA 945381477667285
  10. John Lough, MDSan Jose, CA 951281629487368
  11. Brian Loui, MDSan Diego, CA 921131801536636
  12. Michael Louie, MDPleasanton, CA 945881891847604
  13. Patrick Louis-Jacques, M.D.Fresno, CA 937101992707442
  14. Katherine LoustaunauOakland, CA 946021417538034
  15. Neil Louwrens, M.D.Red Bluff, CA 960801174621320
  16. Esteban Lovato, M.D.Oakland, CA 946011376610923
  17. Luis Lovato, M.D.Sylmar, CA 913421407945678
  18. Nancy Love, M.D.Newport Beach, CA 926631427332030
  19. Paul Love, MDModesto, CA 953551386663987
  20. Candice Lovelace, D.O.Visalia, CA 932911215248307
  21. Allison Lovell, M.D.Palm Springs, CA 922641003923368
  22. Glenda Lovell, MDHayward, CA 945411821173584
  23. Blaine Lovetro, M.D.San Diego, CA 921611295023208
  24. Arthur Lovgren-Moritz, M.D.San Diego, CA 921231992726095
  25. Albert Low, MDBellflower, CA 907061659448587
  26. Dennis Low, MDSan Jose, CA 951281750347837
  27. Henry Low, MDRocklin, CA 957651932251154
  28. John Low, M.D.San Dimas, CA 917731861610057
  29. Julie Low, MDSanta Ana, CA 927061972682698
  30. Justin LowCupertino, CA 950141033400163
  31. Kenneth Low, M.D.West Sacramento, CA 956911750548814
  32. Richard Low, MDWestlake Village, CA 913621467343038
  33. Caleb Lowe, DOLos Angeles, CA 900591710621719
  34. Dorothy Lowe, M.D.Los Angeles, CA 900481275577835
  35. Henry Lowe, M.D.Stanford, CA 943051831301399
  36. Clifford Lowell, M.D.San Francisco, CA 941431194767046
  37. Mary Lowery, MDPismo Beach, CA 934491023377637
  38. Miguel Loya, D.O.Solvang, CA 934631619281532
  39. Julio Loza, D.O.Los Angeles, CA 900331770696528
  40. Rosalinda Loza, M.D.Anaheim, CA 928041730298688
  41. Christopher Lozano, MDBellflower, CA 907061548337454
  42. James Lozano, MDAnaheim, CA 928071134288707
  43. Yamile Lozano, MDChula Vista, CA 919111871174664
  44. Grace Lozinski, M.D.Irvine, CA 926041659399582
  45. Alex Lu, MDIrvine, CA 926041144211350
  46. Bina Lu, M.D.Burlingame, CA 940101871799486
  47. Chih-Huan LuSacramento, CA 958171780147009
  48. Christian LuRancho Mirage, CA 922701295438794
  49. Christian Lu, MDIrvine, CA 926181164691549
  50. Dat Lu, M.D.Sacramento, CA 958171528234382

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

California ranks 17 of 51 per resident

  1. New Jersey50
  2. New Hampshire48
  3. Minnesota46
  4. California45
  5. Florida45
  6. Ohio45
  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.

79.5% 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. California79.5%
  2. United States78.7%

Internal Medicine Physician records in California, measured

  • In a Medicare file14,068 of 17,696 · 79.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file11,077 · 62.6% here, 61.4% nationally
  • Not updated in five years or more10,832 · 61.2% here, 55.4% nationally
  • Median graduation year2004 · the 11,065 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

17,696 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in California: 45 per 100,000 residents against 44 nationally (50 states and D.C.). Los Angeles has 1,423 of them (8%).

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 York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300

States with a similar rate per 100,000

  1. Minnesota45.9
  2. Ohio44.8
  3. New Hampshire48.0
  4. Maine42.8

The largest states

  1. New York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300
  5. Illinois7,238

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.