NPPES file of Aug 9, 2026

Pediatrics Physician in California

9,272 NPPES records list pediatrics physician with a practice address in California, 24 per 100,000 residents, the 14th 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 186 of 186.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 208000000X · 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, 919

  1. Los Angeles919
  2. San Francisco514
  3. San Diego454
  4. Oakland338
  5. Palo Alto321

Pediatrics Physician records in California

  1. Nina ZhuLos Angeles, CA 900271831770569
  2. Ran Zhu, M.D.Downey, CA 902411790044691
  3. Hillary Zieve, M.D.Orange, CA 928681831500131
  4. Tomas ZillmannSan Francisco, CA 941031295888253
  5. Nancy Zimble, MDEncino, CA 913161558458422
  6. Margaret Zimmerman, MDFountain Valley, CA 927081073502282
  7. Hannah Zipfel, DOLos Angeles, CA 900331467154393
  8. Jenny Zipkin, M.D.Los Angeles, CA 900271902056989
  9. Ronen Zipkin, M.D.Orange, CA 928681265556765
  10. Rachel Zipursky, MDLos Angeles, CA 900271225521305
  11. Philip Ziring, MDSan Francisco, CA 941021285834432
  12. Nancy Zises, MDSanta Clara, CA 950511194744409
  13. Adam ZismanPasadena, CA 911071518461516
  14. Kali Zivitz, M.D.Burlingame, CA 940101801806617
  15. Nina Zook, MDPalo Alto, CA 943041699234674
  16. Elinor Zorn, M.D.Hanford, CA 932301346296530
  17. Paul Zubach, MDSacramento, CA 958231821176546
  18. Emily Zucker, MDLos Angeles, CA 900271548764954
  19. Maryann Zukin, M.D.San Fernando, CA 913401811998511
  20. Jocelyn Zuniga, M.D.Downey, CA 902411386682623
  21. Theodore Zwerdling, MDParadise, CA 959691861475865
  22. Lisa Zwerling, M.D.San Pedro, CA 907311952589533

Source: CMS NPPES, primary taxonomy 208000000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 14 of 51 per resident

  1. Illinois25
  2. Ohio25
  3. Missouri25
  4. California24
  5. New Hampshire24
  6. New Jersey23
  7. 50 states and D.C.22

Source: CMS NPPES, primary taxonomy 208000000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

30.5% of these records appear in a Medicare file, against 36.4% 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. California30.5%
  2. United States36.4%

Pediatrics Physician records in California, measured

  • In a Medicare file2,831 of 9,272 · 30.5% here, 36.4% nationally
  • In the CMS Doctors and Clinicians file754 · 8.1% here, 8.7% nationally
  • Not updated in five years or more6,017 · 64.9% here, 58.4% nationally
  • Median graduation year2012 · the 754 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 208000000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

9,272 NPPES records list pediatrics physician (208000000X) as their primary taxonomy with a practice address in California: 24 per 100,000 residents against 22 nationally (50 states and D.C.). Los Angeles has 919 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. New York5,795
  2. Texas5,641
  3. Florida3,996
  4. Pennsylvania3,382

States with a similar rate per 100,000

  1. New Hampshire23.5
  2. New Jersey23.5
  3. Virginia23.2
  4. American Samoa22.8

The largest states

  1. New York5,795
  2. Texas5,641
  3. Florida3,996
  4. Pennsylvania3,382
  5. Illinois3,176

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.