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 293 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. Karandeep Singh, M.D.Tehachapi, CA 935611053715300
  2. Madhusree Singh, M.D.San Diego, CA 921231124206263
  3. Mahendra Singh, M.D.Roseville, CA 956781932198272
  4. Manbir Singh, MD FACPBakersfield, CA 933041225131675
  5. Mandeep Singh, M.D.Soledad, CA 939601760821797
  6. Manjeet Singh, M.D.Pleasanton, CA 945661134395775
  7. Manpreet Singh, MDClovis, CA 936111982166302
  8. Matab Singh, MDBakersfield, CA 933091700088036
  9. Mona Singh, MDSan Diego, CA 921231013193150
  10. Nainwant Singh, MDPalo Alto, CA 943051184005688
  11. Narinder SinghOroville, CA 959661518921998
  12. Navneet Singh, D.O.Santa Ana, CA 927071790181311
  13. Nirupam Singh, MDNewport Beach, CA 926631427099753
  14. Nishith Singh, M.D.San Francisco, CA 941021699967125
  15. Parmjit Singh, MDNewark, CA 945601619043387
  16. Prabhdeep Singh, M.D.El Centro, CA 922431225021587
  17. Pratheepa Singh, MDSanta Clara, CA 950511134495518
  18. Preetinder Singh, M.D.Turlock, CA 953821083035943
  19. Ranjeet Singh, M.D.Fresno, CA 937201093134751
  20. Rashmi SinghLos Angeles, CA 900071427435205
  21. Ripjit SinghFresno, CA 937201194466631
  22. Rumka Singh, MDSanta Rosa, CA 954031427132497
  23. Sanjiv Singh, MD, JDStanford, CA 943051427365451
  24. Satinder Singh, D.O.Tracy, CA 953761861642019
  25. Shailender Singh, M.D.San Jose, CA 951381770783292
  26. Shallu Singh, M.D.San Jose, CA 951481396933180
  27. Shaun Singh, DODowney, CA 902411871054684
  28. Sukhbir Singh, D.O.Napa, CA 945581184063299
  29. Sukhvir Singh, MDHanford, CA 932301013438027
  30. Teja Singh, M.D.San Diego, CA 921081205875606
  31. Tejinder Singh, MDUpland, CA 917861104820729
  32. Trisha Singh, MDTracy, CA 953761275238867
  33. Troy Singh, MDRoseville, CA 956611417373754
  34. William Singh, MDLos Angeles, CA 900331346603610
  35. Bindu Singhal, M.D.San Diego, CA 921211073546057
  36. Maneesh Singhal, M.D.Thousand Oaks, CA 913601700017068
  37. Rita Singhal, MD, MPHLos Angeles, CA 900121114012887
  38. Surbhi SinghalSacramento, CA 958171023463338
  39. Vinod Singhi, MDBellflower, CA 907061295746808
  40. Gaurav Singhvi, MDHemet, CA 925431306097563
  41. Anupam Singla, MDLancaster, CA 935341356379275
  42. Michael Singleton, M.D., MBALos Angeles, CA 900031013918119
  43. Flora Sinha, M.D.Beverly Hills, CA 902111992096010
  44. Kairav Sinha, MDLos Angeles, CA 900331003556523
  45. Kavita Sinha, MDRancho Mirage, CA 922701831110832
  46. Ronesh Sinha, MDLos Altos, CA 940221740360395
  47. Santosh Sinha, M.D.Bakersfield, CA 933011730285735
  48. Voltaire Sinigayan, M.D.Sacramento, CA 958171023245164
  49. Jimmy Sio, MDBakersfield, CA 933011659448470
  50. Hicham Siouty, MDTorrance, CA 905051801831904

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.