NPPES file of Aug 9, 2026

Neonatal-Perinatal Medicine Physician in California

871 NPPES records list neonatal-perinatal medicine physician with a practice address in California, 2.2 per 100,000 residents, the 23rd highest rate of 50. Los Angeles and Palo Alto have the most; each record links to the provider's NPI and the California license search. Page 18 of 18.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2080N0001X · 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, 89

  1. Los Angeles89
  2. Palo Alto89
  3. San Diego82
  4. Orange63
  5. San Francisco47

Neonatal-Perinatal Medicine Physician records in California

  1. Thelma Yap, MDRancho Mirage, CA 922701609964899
  2. Elisabeth Young, MDSan Francisco, CA 941431750842613
  3. Caroline YuTorrance, CA 905031861052508
  4. Luke Yu, MDAnaheim, CA 928071871660761
  5. Xin Yu, M.D.Tarzana, CA 913561598171118
  6. Ya-Mei Yu, MDAnaheim, CA 928071033286992
  7. Rachel Zabaneh, M.D.Long Beach, CA 908041982897468
  8. Aleksandra Zabrocki, M.D.San Diego, CA 921341518116474
  9. Pamela Zachar, MD, MPHModesto, CA 953501528103330
  10. Nousheen Zaman, MDLa Crescenta, CA 912141053513804
  11. Lida Zeinali, B.M.SC., M.D.Sacramento, CA 958171477904530
  12. Carolina Zenobi, M.D.Pasadena, CA 911051447639372
  13. Zoltan Zentay, MDRiverside, CA 925051629175344
  14. Anne Zepeda-Tiscareno, MDOrange, CA 928681861898256
  15. Erika Zerda-Herrera, MDSacramento, CA 958171164086302
  16. Huiquan Zhao, MDFontana, CA 923351609943562
  17. Yosef Zibari, MDLos Angeles, CA 900341720136534
  18. Mark Ziegler, MDRoseville, CA 956611841378551
  19. Paul Zlotnik, M.D.San Diego, CA 921231184706426
  20. Ann ZoveinSan Francisco, CA 941431174854525
  21. Josef Zwass, MDSan Diego, CA 921201407915002

Source: CMS NPPES, primary taxonomy 2080N0001X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 23 of 50 per resident

  1. Kentucky2.4
  2. Oklahoma2.3
  3. Texas2.3
  4. California2.2
  5. Hawaii2.2
  6. Montana2.2
  7. 50 states and D.C.2.3

Source: CMS NPPES, primary taxonomy 2080N0001X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

14.6% of these records appear in a Medicare file, against 15.6% 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. California14.6%
  2. United States15.6%

Neonatal-Perinatal Medicine Physician records in California, measured

  • In a Medicare file127 of 871 · 14.6% here, 15.6% nationally
  • In the CMS Doctors and Clinicians file61 · 7.0% here, 7.0% nationally
  • Not updated in five years or more470 · 54.0% here, 55.5% nationally
  • Median graduation year2012 · the 61 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080N0001X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

871 NPPES records list neonatal-perinatal medicine physician (2080N0001X) as their primary taxonomy with a practice address in California: 2.2 per 100,000 residents against 2.3 nationally (50 states and D.C.). Los Angeles has 89 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. Texas697
  2. New York513
  3. Florida457
  4. Pennsylvania393

States with a similar rate per 100,000

  1. Hawaii2.2
  2. Montana2.2
  3. Virginia2.2
  4. Oklahoma2.3

The largest states

  1. Texas697
  2. New York513
  3. Florida457
  4. Pennsylvania393
  5. Illinois362

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.