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 220 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. Rommel Navarrete, M.D.La Mesa, CA 919411669575940
  2. Benjamin Navarro, M.D.Garden Grove, CA 928401033208608
  3. Maria Navarro, M.D.Sacramento, CA 958161417361429
  4. Priscilla Joy Navarro, MDGreenbrae, CA 949041801027628
  5. Roberto Navarro, M.D.,El Centro, CA 922431235295643
  6. Jane Naviaux, MD PHDSan Diego, CA 921241760087522
  7. Ronald Navone, M.D.Lodi, CA 952401225144934
  8. Suhaila Nawabi, MDGreenbrae, CA 949041154516631
  9. Siddiqa Nawaz, M.D.Hemet, CA 925431750622650
  10. B'Lala Nawurah, MDCoachella, CA 922361801325360
  11. Asha Nayak, M.D., PH.D.Palo Alto, CA 943041306921168
  12. Ashwin NayakStanford, CA 943051669976882
  13. Kavita Nayak, MDLoma Linda, CA 923541184838773
  14. Renuka Nayak, M.D., PH.D.San Francisco, CA 941431073889895
  15. Piyush Nayyar, M.D.Los Angeles, CA 900951467897660
  16. Parvin Nazari, MDAnaheim, CA 928011437148632
  17. Artin Nazarian, MDGlendale, CA 912081609940204
  18. Arezou Nazary, MDIrvine, CA 926181063033298
  19. Lubna NazimLos Angeles, CA 900031952443509
  20. Nahid Nazminia, MDAntioch, CA 945091831277326
  21. Asongu Ncho, MDLos Angeles, CA 900941689612897
  22. Nkiruka Ndu, M.DCrescent City, CA 955321639356678
  23. Neetu Nebhwani, MDSan Francisco, CA 941111942457908
  24. Anoop Neboori, M.D.San Mateo, CA 944011174977607
  25. Neil Nedley, MDAuburn, CA 956021952336059
  26. Mohinderjit Neelam, M.D.Montebello, CA 906401457325193
  27. Joseph Neely, MD, MPHSacramento, CA 958171982344289
  28. Michelle Neely AkhmerovSan Francisco, CA 941151841677861
  29. Harvey Negoro, MDWoodland Hills, CA 913671821146796
  30. Elora Negose, M.D.Sacramento, CA 958171760846596
  31. Barry Neidorf, MDLos Angeles, CA 900671356447700
  32. Martha Neighbor, MDSan Francisco, CA 941101700894334
  33. Katherine Neilan, M.D.San Francisco, CA 941151932127040
  34. Sergio Neira, M.D.Oxnard, CA 930361043373194
  35. Marissa Neis-Gimenez, MDVacaville, CA 956881033297924
  36. Michael Nejad, M.D.Greenbrae, CA 949041235163569
  37. Victor Nekrasov, M.D.Fullerton, CA 928351619368461
  38. Cory Nelkin, D.O.Poway, CA 920641831475136
  39. Ashley Nelson, M.D.Fresno, CA 937201245524727
  40. Debra Nelson, MDBerkeley, CA 947201699840751
  41. Gillian NelsonLos Angeles, CA 900031770625139
  42. John Nelson, MDFresno, CA 937201003908591
  43. Michael Nelson, MD.Porter Ranch, CA 913261346254968
  44. Nicholas Nelson, MBBSOakland, CA 946021164701843
  45. Lynda Nelson Swain, MDYountville, CA 945991851479695
  46. Ramachandra Nemani, M.DSanta Monica, CA 904041235276478
  47. Martha Nemer Pelliza, M.D.Murrieta, CA 925621265738355
  48. Steven NemirovSan Jose, CA 951281487644779
  49. Natalia Nemkovich, MDSan Jose, CA 951161629574934
  50. Khashayar NemoviRancho Mirage, CA 922701225667991

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.