NPPES file of Aug 9, 2026

Maternal & Fetal Medicine Physician in California

343 NPPES records list maternal & fetal medicine physician with a practice address in California, 0.9 per 100,000 residents, the 29th highest rate of 50. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 1 of 7.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207VM0101X · 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, 43

  1. Los Angeles43
  2. San Diego36
  3. San Francisco32
  4. Palo Alto26
  5. Orange17

Maternal & Fetal Medicine Physician records in California

  1. Joanna Adamczak, M.D.San Diego, CA 921231447428420
  2. Rebecca Adami, M.D.San Diego, CA 921231992149447
  3. Michelle Adams, M.D.Oakland, CA 946091326058991
  4. Yalda Afshar, M.D., PH.D.Los Angeles, CA 900951629497763
  5. Paola Aghajanian, M.D.Los Angeles, CA 900481336324334
  6. Jennifer Ahn, M.D.San Diego, CA 921301972673879
  7. Cheryl Albuquerque, M.D.San Jose, CA 951281093863938
  8. Marwan Ali, MD, MBASacramento, CA 958251265696660
  9. Kevin Amaya, D.O.Harbor City, CA 907101215193495
  10. Odul Amburgey, M.D.San Jose, CA 951241619196466
  11. Epifanio Anzaldo, M.D.Orange, CA 928681962508630
  12. Carol Archie, M.D.Los Angeles, CA 900171922118041
  13. Regina Arvon, M.D.San Francisco, CA 941181649483991
  14. Tamerou Asrat, M.D.Newport Beach, CA 926631619980638
  15. Natali Aziz, MDPalo Alto, CA 943041477518371
  16. Jerasimos Ballas, M.D.San Diego, CA 921031871767384
  17. Ariana Banuelos, MDBaldwin Park, CA 917061184129728
  18. Emilia Basilio, MD, MPHFresno, CA 937011245693761
  19. Sanmaan Basraon, MD MPHMadera, CA 936361205031887
  20. Marie Beall, M.D.Torrance, CA 905021639158165
  21. James Bedell, D.O.Modesto, CA 953561033405246
  22. Richard Benoit, M.D.Los Angeles, CA 900041679542252
  23. Dana BergerOrange, CA 928681497287387
  24. Victoria Berger, M.D.Stanford, CA 943051679919773
  25. Erica Berggren, MDSan Diego, CA 921301912159674
  26. Karla Bermudez Wagner, M.D.San Francisco, CA 941431114169810
  27. James Betoni, D.O.Loma Linda, CA 923541477530715
  28. Ylayaly Bianco, MDPalo Alto, CA 943041558421768
  29. Brianne Bimson, MDLos Angeles, CA 900271760794143
  30. Gary Blake, M.D.San Diego, CA 921231497738439
  31. Christine Blauvelt, MDSan Francisco, CA 941431063916013
  32. Jeffrey Block, M.D.Thousand Oaks, CA 913601760552863
  33. Yair Blumenfeld, MDPalo Alto, CA 943041518077726
  34. Sylvie Blumstein, MDPalo Alto, CA 943041033296983
  35. Mark Boddy, MDPalo Alto, CA 943041518059880
  36. Nina Boe, M.D.Sacramento, CA 958171407839764
  37. Kathleen Bradley, M.D.Westlake Village, CA 913611982789517
  38. Harbinder Brar, M.D. INCRiverside, CA 925061699700971
  39. Julia Bregand-White, M.D.Orange, CA 928681750600961
  40. Carolyn Breuer, REGISTERED NURSELancaster, CA 935351053834226
  41. Autumn Broady, M.D., M.P.H.Oakland, CA 946091053549048
  42. Laura Brodzinsky, MDPalo Alto, CA 943041073655072
  43. Samuel Bruce, M.D.Pasadena, CA 911051417069105
  44. Arin Buresch, MDSan Diego, CA 921201669745261
  45. Richard Burwick, M.D., M.P.H.West Covina, CA 917901740471531
  46. Melissa Bush, M.D.Newport Beach, CA 926631942257373
  47. James Byrne, MDSan Jose, CA 951281831134097
  48. Holly Casele, MDSan Diego, CA 921231255348744
  49. Valerian Catanzarite, M.D., PH.D.San Diego, CA 921231174694939
  50. Leonard Cedars, M.D.San Luis Obispo, CA 934051821078692

Source: CMS NPPES, primary taxonomy 207VM0101X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 29 of 50 per resident

  1. Virginia0.9
  2. Hawaii0.9
  3. Arizona0.9
  4. California0.9
  5. Minnesota0.9
  6. Louisiana0.9
  7. 50 states and D.C.1.0

Source: CMS NPPES, primary taxonomy 207VM0101X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

61.2% of these records appear in a Medicare file, against 76.2% 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. California61.2%
  2. United States76.2%

Maternal & Fetal Medicine Physician records in California, measured

  • In a Medicare file210 of 343 · 61.2% here, 76.2% nationally
  • In the CMS Doctors and Clinicians file181 · 52.8% here, 66.6% nationally
  • Not updated in five years or more175 · 51.0% here, 46.9% nationally
  • Median graduation year2003 · the 181 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207VM0101X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

343 NPPES records list maternal & fetal medicine physician (207VM0101X) as their primary taxonomy with a practice address in California: 0.9 per 100,000 residents against 1 nationally (50 states and D.C.). Los Angeles has 43 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. Texas308
  2. New York292
  3. Florida182
  4. Pennsylvania143

States with a similar rate per 100,000

  1. Arizona0.9
  2. Minnesota0.9
  3. Hawaii0.9
  4. Louisiana0.9

The largest states

  1. Texas308
  2. New York292
  3. Florida182
  4. Pennsylvania143
  5. Illinois128

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.