NPPES file of Aug 9, 2026

Lactation Consultant (Registered Nurse) in California

443 NPPES records list lactation consultant (registered nurse) with a practice address in California, 1.1 per 100,000 residents, the 31st highest rate of 51. San Diego and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 9 of 9.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163WL0100X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

San Diego has the most, 27

  1. San Diego27
  2. San Francisco16
  3. Berkeley13
  4. Walnut Creek13
  5. Sacramento11

Lactation Consultant (Registered Nurse) records in California

  1. Joy Taylor, RN, IBCLCSan Francisco, CA 941181831039759
  2. Lynn Thiebaud, IBCLCBerkeley, CA 947071326310285
  3. Inger Thomas-Jackson, RN, BSN, LNC, IBCLCYuba City, CA 959911730629742
  4. Melissa Thorbjornsen, RN, BSN, IBCLCLodi, CA 952401447508221
  5. Ruth Thornton, IBCLC, RNRedding, CA 960021346817293
  6. Susan Train, RN IBCLCTruckee, CA 961611639799190
  7. Esther ValenzuelaBrentwood, CA 945131053978072
  8. Claire Van Rooyen, RN, IBCLCMartinez, CA 945531972954360
  9. Marla Vaughan, RN BSN IBCLCPetaluma, CA 949521811289465
  10. Esperanza VelazcoWalnut Creek, CA 945981114606027
  11. Kelli Venaas, RN, IBCLCWoodland Hills, CA 913671134578891
  12. Margaret Veyna, RNSan Luis Obispo, CA 934011356512941
  13. Lacie Vidovich, RN, IBCLCLakeside, CA 920401295486694
  14. Amy Vieira, BSN, RN, IBCLCConcord, CA 945181144919903
  15. Cherie ViscontiFairfax, CA 949301568115814
  16. Hailey Wada, RN, IBCLCRancho Cucamonga, CA 917011548129497
  17. Brooke Wade, RNRoseville, CA 957471346128568
  18. Samantha Waid, RN, IBCLCVentura, CA 930031740107994
  19. Courtney Wallace, RN, PHN, IBCLCVentura, CA 930011710798285
  20. Jodi WaltersSan Diego, CA 921231275125890
  21. Tiffany Washington, RN, BSN, IBCLCAnaheim, CA 928051346973567
  22. Janet Watson, R.N. PHN IBCLCSonora, CA 953701790198083
  23. Milagros Weber-Hyatt, IBCLCRamona, CA 920651437957263
  24. Alison WeibertVista, CA 920811861949117
  25. Catherine Weien, RN, BSN, IBCLCMission Viejo, CA 926921922823053
  26. Chen WenWalnut, CA 917891194542696
  27. Nancy White, RN,IBCLCSan Diego, CA 921171699167528
  28. Sydney White, RN, CLCEncinitas, CA 920241891557567
  29. Sara Whitehouse, RN, IBCLCOceanside, CA 920571801428503
  30. Dawnita Wicks, RN, BSN, PHN, IBCLCWestminster, CA 926831184100943
  31. Sarah Williams, RN, IBCLCSoquel, CA 950731316411804
  32. Carolynn Wimmer, RN, IBCLCSan Diego, CA 921171417757535
  33. Barbara Wintch, RN, IBCLCWalnut Creek, CA 945961184834921
  34. Rotsarin Wong, RN, IBCLCIrvine, CA 926201760217665
  35. Lori Wood, APRNRancho Mirage, CA 922701497404529
  36. Nicole Worland BarnettRedlands, CA 923731043918329
  37. Chelsea YiBrentwood, CA 945131659148351
  38. Julie YingChino Hills, CA 917091073464251
  39. Kelli Zackary, R.N.Twentynine Palms, CA 922771255714341
  40. Margarita Zaytseva, RN, DOULARedlands, CA 923731154140564
  41. Erin ZezulakDavis, CA 956181255844593
  42. Barbara Zimmermann, RN BSN IBCLC CEIMLos Angeles, CA 900451184076523
  43. Julie Zuck, RN, IBCLCSpring Valley, CA 919771790158871

Source: CMS NPPES, primary taxonomy 163WL0100X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 31 of 51 per resident

  1. New York1.2
  2. Louisiana1.2
  3. Connecticut1.2
  4. California1.1
  5. Utah1.1
  6. Montana1.1
  7. 50 states and D.C.1.2

Source: CMS NPPES, primary taxonomy 163WL0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.5% of these records appear in a Medicare file, against 0.3% 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. California0.5%
  2. United States0.3%

Lactation Consultant (Registered Nurse) records in California, measured

  • In a Medicare file2 of 443 · 0.5% here, 0.3% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.1% nationally
  • Not updated in five years or more204 · 46.0% here, 43.1% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163WL0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

443 NPPES records list lactation consultant (registered nurse) (163WL0100X) as their primary taxonomy with a practice address in California: 1.1 per 100,000 residents against 1.2 nationally (50 states and D.C.). San Diego has 27 of them (6%).

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. Texas321
  2. New York237
  3. Florida208
  4. Illinois202

States with a similar rate per 100,000

  1. Connecticut1.2
  2. Utah1.1
  3. Louisiana1.2
  4. Montana1.1

The largest states

  1. Texas321
  2. New York237
  3. Florida208
  4. Illinois202
  5. Virginia175

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.