NPPES file of Aug 9, 2026

Nephrology Physician in California

1,468 NPPES records list nephrology physician with a practice address in California, 3.8 per 100,000 residents, the 22nd 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 30.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RN0300X · 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, 151

  1. Los Angeles151
  2. San Diego75
  3. San Francisco70
  4. Sacramento57
  5. Stanford39

Nephrology Physician records in California

  1. Swati Patel, MDBerkeley, CA 947051437256120
  2. Ushir Patel, M.D.Sacramento, CA 958231285936757
  3. Yogesh Patel, MDMoreno Valley, CA 925531912944653
  4. Shakuntala Patil, MDMoreno Valley, CA 925531437599867
  5. Artashes Patrikyan, MDGlendale, CA 912041972624591
  6. Thomas Paukert, M.D.Napa, CA 945581013989540
  7. Abraham Paykar, M.D.Lancaster, CA 935341114903762
  8. Venkat Peddi, MDSan Francisco, CA 941151417974247
  9. Trixie Lorraine Pei, MDNapa, CA 945581538664669
  10. Luon Peng, DOLos Angeles, CA 900631407937105
  11. Mei Zhu Peng, M.D.San Francisco, CA 941101124113915
  12. Susy Peng, MDBellflower, CA 907061245307123
  13. Brian Penton, M.D.San Luis Obispo, CA 934011558316083
  14. William Peters, MDSan Jose, CA 951191861568347
  15. Jeffrey Petersen, M.D.Stanford, CA 943051649312752
  16. Romela Petrosyan, M.D.Los Angeles, CA 900891689109878
  17. Jennifer Pettigrew, MDRoseville, CA 956611922115088
  18. Jennifer Pham, MDChula Vista, CA 919101235629932
  19. Jimmy Tam Huy Pham, D.O.Apple Valley, CA 923071982087391
  20. Kevin Pham, M.D.Orange, CA 928681477623635
  21. Nhat Pham, MDSan Jose, CA 951281568408763
  22. Phuong Chi Pham, MDSylmar, CA 913421770500316
  23. Phuong-Thu Pham, MDLos Angeles, CA 900951699795856
  24. Sheri Pham, MDCovina, CA 917231639261951
  25. Tam Pham, MDAnaheim, CA 928071891862660
  26. Dennis Phan, MDSalinas, CA 939011437238342
  27. Hai Phan, MDHighland, CA 923461104817840
  28. Piangwarin Phaosawasdi, M.DVacaville, CA 956871962727123
  29. Maricel Pilapil-Pureza, MDDowney, CA 902411366547655
  30. Arteen Pirverdian, DOLos Angeles, CA 900331386104057
  31. Allan Pollock, M.D.Newbury Park, CA 913201013958792
  32. Neda Poommipanit, M.D.Panorama City, CA 914021629205745
  33. Alan Poon, MDHarbor City, CA 907101275600140
  34. Arashdeep Poonia, M.D.Santa Maria, CA 934541417235672
  35. Roopinder Poonia, M.D.Carmichael, CA 956081255345112
  36. Merve Postalcioglu, MDSan Francisco, CA 941101316442056
  37. Olivia Potok, MDSan Diego, CA 921031073951323
  38. Jacob Poulose, MD.Northridge, CA 913241578723508
  39. Rajeev Prasad, M.D.Watsonville, CA 950761275548943
  40. Leonid Pravoverov, MDStockton, CA 952101306924113
  41. Gregory Proctor, MDBeverly Hills, CA 902101326305558
  42. Yasir Qazi, M.D.Orange, CA 928681326086695
  43. Jesse Qian, M.D.San Francisco, CA 941431033301833
  44. Duc Quach, MDTemecula, CA 925921922567379
  45. Juan Quevedo, M.D.San Diego, CA 921021093902496
  46. Irmaris Quinones Vargas, MDEl Centro, CA 922431598326522
  47. Lathika Raakesh, MDMontebello, CA 906401497048672
  48. Nima Rabbani, D.O., M.S.Encino, CA 914361619179454
  49. Ralph Rabkin, MD, MBCHBPalo Alto, CA 943041679729180
  50. Ajay Rachakonda, MDVisalia, CA 932911467605014

Source: CMS NPPES, primary taxonomy 207RN0300X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 22 of 51 per resident

  1. Texas3.8
  2. Virginia3.8
  3. Georgia3.8
  4. California3.8
  5. South Carolina3.8
  6. Michigan3.7
  7. 50 states and D.C.4.0

Source: CMS NPPES, primary taxonomy 207RN0300X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

88.2% of these records appear in a Medicare file, against 85.8% 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. California88.2%
  2. United States85.8%

Nephrology Physician records in California, measured

  • In a Medicare file1,295 of 1,468 · 88.2% here, 85.8% nationally
  • In the CMS Doctors and Clinicians file1,128 · 76.8% here, 76.0% nationally
  • Not updated in five years or more909 · 61.9% here, 54.9% nationally
  • Median graduation year2001 · the 1,128 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RN0300X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,468 NPPES records list nephrology physician (207RN0300X) as their primary taxonomy with a practice address in California: 3.8 per 100,000 residents against 4 nationally (50 states and D.C.). Los Angeles has 151 of them (10%).

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. Texas1,159
  2. New York1,049
  3. Florida840
  4. Pennsylvania651

States with a similar rate per 100,000

  1. South Carolina3.8
  2. Georgia3.8
  3. Virginia3.8
  4. Michigan3.7

The largest states

  1. Texas1,159
  2. New York1,049
  3. Florida840
  4. Pennsylvania651
  5. Illinois572

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.