NPPES file of Aug 9, 2026

Infectious Disease Physician in California

1,119 NPPES records list infectious disease physician with a practice address in California, 2.9 per 100,000 residents, the 25th 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 16 of 23.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RI0200X · 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, 147

  1. Los Angeles147
  2. San Francisco108
  3. San Diego76
  4. Stanford58
  5. Sacramento56

Infectious Disease Physician records in California

  1. Alex PelliccioneOakland, CA 946111407315708
  2. Mariasol Pena, M.D.Los Angeles, CA 900331962729673
  3. Bennett Penn, MD, PHDSan Francisco, CA 941431275715245
  4. James Pennington, M.D.Lafayette, CA 945491184962144
  5. Meryl Perez, M.D.Roseville, CA 956611962729251
  6. David Perlada, M.D.Orinda, CA 945631245259845
  7. Aaron Perlmutter, M.D.Beverly Hills, CA 902111114952496
  8. Joshua Perlroth, M.D.Walnut Creek, CA 945981881807006
  9. Jon Persichino, D.O.Riverside, CA 925061619905189
  10. Sarah Pervaiz, MDFresno, CA 937201154701977
  11. Charmaine Peters, MD, MSMonterey, CA 939401316433055
  12. Philip Peters, M.D.Sacramento, CA 958111417102427
  13. Jonathan Pham, MDLoma Linda, CA 923501750811659
  14. Roger Phelps, M.D.Piedmont, CA 946111629188990
  15. Susan Philip, MD MPHSan Francisco, CA 941101477660116
  16. Elaine Pierce, MD, MPHSan Diego, CA 921101013102128
  17. Howard Pitchon, MDBeverly Hills, CA 902111396968376
  18. Kamryn Plechot, PHARM.D.Orange, CA 928681952253080
  19. Sheree Poitier, M.D.Los Angeles, CA 900121952421075
  20. Andrea Polesky, MDSan Ysidro, CA 921731063517365
  21. Richard Pollard, MDSacramento, CA 958171053391466
  22. Claire Pomeroy, M.D., M.B.A.Sacramento, CA 958171174595078
  23. Steven Porter, M.D., PH.D.Mill Valley, CA 949411740526524
  24. Irving Posalski, M.D.Los Angeles, CA 900481336172378
  25. Mahendra Poudel, MDSalinas, CA 939011124200076
  26. Navid Pour-Ghasemi, M.D.Los Angeles, CA 900331053798173
  27. Ritika PrasadSan Jose, CA 951281407484090
  28. Michael Preziosi, M.D.La Jolla, CA 920371942485883
  29. David Pride, MD, PHDSan Diego, CA 921031194875526
  30. Richard Prier, M.D.Templeton, CA 934651962409110
  31. Monique Prince, MDLos Angeles, CA 900951013649672
  32. Ellsworth Pryor, M.DNewhall, CA 913211952344988
  33. Stephen Puentes, MDLos Angeles, CA 900031336295997
  34. Andrew Pumerantz, D.O.Pomona, CA 917661861441594
  35. Sarah Puryear, M.D., M.P.H.San Francisco, CA 941101568766830
  36. Clifford Quan, MDAntioch, CA 945311235322264
  37. Orlando Quintero Cardona, M.D.Stanford, CA 943051043624703
  38. Farzana Qureshi, M.D.Rancho Mirage, CA 922701790781334
  39. Allen Radner, M.DSalinas, CA 939011528065752
  40. Masoud Rahban, M.D.Los Angeles, CA 900361124198312
  41. Shobita Rajagopalan, MD, MPHInglewood, CA 903011205041779
  42. Mina Raju, D.O.Visalia, CA 932911588600068
  43. Rani Ramachandran, M.D.San Jose, CA 951281881621324
  44. Rithika Ramakrishnan, MDLong Beach, CA 908131316476484
  45. Shankar Raman, MD,MPHBakersfield, CA 933111013988807
  46. Charulata Ramaprasad, M.D.Santa Cruz, CA 950651528269925
  47. Sydney Ramirez, MDSan Diego, CA 921031073045191
  48. David Rand, MDTorrance, CA 905051942271275
  49. Bhavani Rao, MDPanorama City, CA 914021083773667
  50. Jeffrey Rapp, M.D.Los Angeles, CA 900481619995073

Source: CMS NPPES, primary taxonomy 207RI0200X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 25 of 51 per resident

  1. Vermont2.9
  2. Hawaii2.9
  3. Wisconsin2.9
  4. California2.9
  5. Louisiana2.8
  6. Virginia2.8
  7. 50 states and D.C.3.2

Source: CMS NPPES, primary taxonomy 207RI0200X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

78.6% of these records appear in a Medicare file, against 79.0% 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. California78.6%
  2. United States79.0%

Infectious Disease Physician records in California, measured

  • In a Medicare file880 of 1,119 · 78.6% here, 79.0% nationally
  • In the CMS Doctors and Clinicians file735 · 65.7% here, 68.4% nationally
  • Not updated in five years or more657 · 58.7% here, 56.5% nationally
  • Median graduation year2003 · the 735 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RI0200X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,119 NPPES records list infectious disease physician (207RI0200X) as their primary taxonomy with a practice address in California: 2.9 per 100,000 residents against 3.2 nationally (50 states and D.C.). Los Angeles has 147 of them (13%).

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 York970
  2. Florida760
  3. Texas674
  4. Pennsylvania545

States with a similar rate per 100,000

  1. Wisconsin2.9
  2. Hawaii2.9
  3. Vermont2.9
  4. Louisiana2.8

The largest states

  1. New York970
  2. Florida760
  3. Texas674
  4. Pennsylvania545
  5. Massachusetts487

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.