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 221 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. Talin Nemri, M.D.Los Alamitos, CA 907201891138269
  2. Paula Nenn, MDSan Diego, CA 921211477980035
  3. Matthew NeohCarmel, CA 939231215390935
  4. Francis Nepacena, MDWalnut Creek, CA 945981457425068
  5. Arlene Nepomuceno, MDCovina, CA 917231043279037
  6. Edward Nepomuceno, M.D.Anaheim, CA 928071235215799
  7. Harry Nervino, MDMonterey, CA 939401538155908
  8. Travis Nesbit, MDOrange, CA 928681316381692
  9. Rhanika Alexandra Neuda, MDLos Angeles, CA 900491164886792
  10. Grace Neuman, D.O.Los Angeles, CA 900111407115959
  11. Herbert Neuman, M.D.Redwood City, CA 940651477833408
  12. Sheryl Neuman, M.D.Los Angeles, CA 900351528310208
  13. Robert Neveln, MDLa Jolla, CA 920371255449005
  14. Thanh Neville, M.D.Los Angeles, CA 900951548447949
  15. Renee Newby, MDSanta Clara, CA 950511285293019
  16. Charlotte Newcomb, MDSacramento, CA 958231487706289
  17. Katherine Newcomb, M.D.Groveland, CA 953211528193786
  18. Glenda NewellOakland, CA 946051912058496
  19. Kathryn Newell, M.D.Sacramento, CA 958171003891011
  20. Erin Newman, M.D.Orange, CA 928681043542871
  21. Marjorie Newman, M.D.Santa Barbara, CA 931101255427837
  22. Meg Newman, MDSan Francisco, CA 941101609973692
  23. Shelese Newmark, M.D.San Diego, CA 921031659515294
  24. Christine Newsom, MDGrass Valley, CA 959451407822943
  25. Inemesit Newsome, MDSanta Cruz, CA 950651639494933
  26. Alexander Newton, DOBerkeley, CA 947051912402322
  27. Charles Newton, M.D.Visalia, CA 932771285836197
  28. Roger Newton, M.D.Carmel, CA 939231902270374
  29. Jonathan Neyer, M.D.Los Angeles, CA 900951841442449
  30. Andrew Ng, MDMillbrae, CA 940301871716910
  31. Christopher Ng, DOLong Beach, CA 908061669001749
  32. Christopher Ng, MDRedlands, CA 923731235585852
  33. Christopher Ng, MDSan Francisco, CA 941221063429900
  34. Chung Ng, M.D.Los Angeles, CA 900121285708651
  35. Damond Ng, MD, MPHSan Francisco, CA 941151760018790
  36. David Ng, MDBeverly Hills, CA 902111558484618
  37. Don Ng, MDSan Francisco, CA 941431487618492
  38. Fiona Ng, MD, MPHSan Francisco, CA 941431518607407
  39. Kai Ng, MDSan Francisco, CA 941151376621904
  40. Kendrick Ng, DOMonterey Park, CA 917541225002231
  41. Rachel NgSan Francisco, CA 941181235367681
  42. Regina Ng, MDBakersfield, CA 933091437247384
  43. Rita Ng, MDOakland, CA 946111467581579
  44. Selena Ng, D.O.Covina, CA 917231255745717
  45. Sheralene Ng, MDRedding, CA 960011174546840
  46. Stanley Ng, MDFontana, CA 923351952460560
  47. Stanley Ng, MDPleasanton, CA 945881942200548
  48. Wai-Shing Ng, M.D.Napa, CA 945581538301221
  49. William Ng, MDSan Gabriel, CA 917761518298041
  50. Visal Nga, D.OLong Beach, CA 908131891029781

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.