NPPES file of Aug 9, 2026

Cardiovascular Disease Physician in California

2,574 NPPES records list cardiovascular disease physician with a practice address in California, 6.6 per 100,000 residents, the 23rd 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 33 of 52.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RC0000X · 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, 242

  1. Los Angeles242
  2. San Francisco139
  3. Sacramento122
  4. San Diego118
  5. Stanford86

Cardiovascular Disease Physician records in California

  1. Hieu Nguyen, M.D.Glendale, CA 912041275513590
  2. Hoang Nguyen, D.O.San Jose, CA 951121790995975
  3. Hong Nguyen, MDLos Angeles, CA 900151639269160
  4. Huy Nguyen, MDMission Viejo, CA 926911851514640
  5. Kaylin Nguyen, MDSylmar, CA 913421487188959
  6. Kim-Lien Nguyen, MDLos Angeles, CA 900731790839363
  7. Luc Nguyen, M.D.Westminster, CA 926831720083181
  8. Minh Nguyen, MDLong Beach, CA 908061528166105
  9. Ngai Nguyen, MDSan Jose, CA 951121205883501
  10. Ngoc Nguyen, M.D.El Monte, CA 917331710183652
  11. Nhon Nguyen, MDRedlands, CA 923731083788046
  12. Patricia Nguyen, MDStanford, CA 943051366629958
  13. Thai Nguyen, M.D.Westminster, CA 926831447293493
  14. Thao Nguyen, M.D., PH.D.Los Angeles, CA 900951316083322
  15. Thong Nguyen, D.O.Santa Rosa, CA 954051063866572
  16. Tin Nguyen, M.D.Sacramento, CA 958191437416625
  17. Tri Nguyen, M.D.San Diego, CA 921111962598425
  18. Tung Nguyen, M.D.Westminster, CA 926831700038577
  19. Vinhkhiem Nguyen Phuc, M.D.Garden Grove, CA 928431679532162
  20. Yu-Ming Ni, MDFountain Valley, CA 927081033565338
  21. William Nicholson, M.D.Fremont, CA 945381144381278
  22. Koen Nieman, MDStanford, CA 943051144778143
  23. Andriana Nikolova, M.D., PH.D.Beverly Hills, CA 902111841551694
  24. Adam Niku, MDSan Luis Obispo, CA 934011760837447
  25. Arvind Nirula, M.D.Fountain Valley, CA 927081437285095
  26. Marin Nishimura-KaminskiSan Diego, CA 921031003243262
  27. Arvind Nishtala, M.D.Larkspur, CA 949391255726949
  28. Cory Nitzel, M.D.Ventura, CA 930031003017666
  29. Thasana Nivatpumin, M.D.Beverly Hills, CA 902101134248263
  30. Benjamin Noor, MDBurbank, CA 915051275037814
  31. Farshad Nosratian, MDHawthorne, CA 902501639253396
  32. Stanley Nussbaum, MDSanta Rosa, CA 954031144304148
  33. William Nyitray, M.D.Bakersfield, CA 933081356520738
  34. Daniel O'BrienRolling Hills Estates, CA 902741023512431
  35. Carey O'Bryan, M.D.Newport Beach, CA 926631912996356
  36. Margaret O'Byrne, M.D.San Diego, CA 921301366543159
  37. Kevin O'Fee, MDSanta Monica, CA 904041396305868
  38. Gerald O'Grady, M.D.Santa Cruz, CA 950651881612513
  39. Brian O'Kelly, MDOakland, CA 946111023196722
  40. Timothy O'Neill, M.D.Los Alamitos, CA 907201467493155
  41. Jack O'Sullivan, MDStanford, CA 943051952930570
  42. Esam Obed, MDOxnard, CA 930301568422350
  43. Victor Ochoa, MDSacramento, CA 958251184878142
  44. Razmik Ohanjanian, MDGlendale, CA 912011265488845
  45. Charles Okonkwo, M.D.Los Angeles, CA 900371063550234
  46. Olamide Oladipo, D.OSan Diego, CA 921341902125768
  47. Neal Olarte, D.O.Sacramento, CA 958171669835617
  48. John Olowoyeye, MDStockton, CA 952101336256726
  49. Naheed Olsen, MDBellflower, CA 907061710054531
  50. Kristoff Olson, MD, MPHVentura, CA 930031891085148

Source: CMS NPPES, primary taxonomy 207RC0000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 23 of 51 per resident

  1. Vermont7.3
  2. Missouri7.2
  3. Louisiana7.1
  4. California6.6
  5. Georgia6.6
  6. Indiana6.6
  7. 50 states and D.C.7.9

Source: CMS NPPES, primary taxonomy 207RC0000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

82.7% of these records appear in a Medicare file, against 83.3% 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. California82.7%
  2. United States83.3%

Cardiovascular Disease Physician records in California, measured

  • In a Medicare file2,129 of 2,574 · 82.7% here, 83.3% nationally
  • In the CMS Doctors and Clinicians file1,743 · 67.7% here, 70.2% nationally
  • Not updated in five years or more1,626 · 63.2% here, 58.2% nationally
  • Median graduation year1999 · the 1,742 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RC0000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,574 NPPES records list cardiovascular disease physician (207RC0000X) as their primary taxonomy with a practice address in California: 6.6 per 100,000 residents against 7.9 nationally (50 states and D.C.). Los Angeles has 242 of them (9%).

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 York2,583
  2. Florida1,946
  3. Texas1,603
  4. Pennsylvania1,476

States with a similar rate per 100,000

  1. Georgia6.6
  2. Indiana6.6
  3. Arizona6.6
  4. Washington6.6

The largest states

  1. New York2,583
  2. Florida1,946
  3. Texas1,603
  4. Pennsylvania1,476
  5. New Jersey1,102

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.