NPPES file of Aug 9, 2026

Clinical Laboratory Director (Non-physician) in California

21 NPPES records list clinical laboratory director (non-physician) with a practice address in California, 0.1 per 100,000 residents, the 43rd highest rate of 46. Los Angeles and Duarte have the most; each record links to the provider's NPI and the California license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 247ZC0005X · 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, 5

  1. Los Angeles5
  2. Duarte3
  3. San Diego2
  4. Brisbane1
  5. Burlingame1

Clinical Laboratory Director (Non-physician) records in California

  1. Marc Benedict Bernaldez, MLS(ASCP)CMSanta Clarita, CA 913501477206993
  2. Sid BhattSanta Clara, CA 950511174282958
  3. Anthony Butch, PHDLos Angeles, CA 900951972045110
  4. Carrie Butler, PHD, F(ACHI)Los Angeles, CA 900241831059526
  5. Daniel Chan, PHDSan Dimas, CA 917731831753839
  6. Ketevan Gendzekhadze, PHDDuarte, CA 910101265700660
  7. Tina Hambuch-Hawks, PHD, DABMGGSan Diego, CA 921171134088313
  8. Glen Hansen, PH.DSan Diego, CA 921211013786425
  9. Jack Ji, PHD, FACMGSouth San Francisco, CA 940801205494218
  10. Robert Koelewyn, LABORATORY DIRECTORHanford, CA 932301326231465
  11. Ophelia LindleyHawthorne, CA 902501427691567
  12. Andy MadoyanPasadena, CA 911041811492028
  13. Gordana Raca, MD,PHD,FACMGLos Angeles, CA 900271386962884
  14. Dale Schwab, PHDCypress, CA 906301730589102
  15. Tharanga Senaratne, PHDLos Angeles, CA 900951992366843
  16. Marilyn Slovak, PH.D.Duarte, CA 910101528277654
  17. Bernard Tegtmeier, PHDDuarte, CA 910101790970648
  18. Olga Timofeeva, PHD, F(ACHI)Los Angeles, CA 900241821958570
  19. Scott Topper, PHD, FACMGBurlingame, CA 940101134846173
  20. Judith Wilber, PH.D.Brisbane, CA 940051073754081
  21. Qing ZhangSan Francisco, CA 941031215637269

Source: CMS NPPES, primary taxonomy 247ZC0005X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 43 of 46 per resident

  1. Arkansas0.1
  2. Nevada0.1
  3. Iowa0.1
  4. California0.1
  5. Idaho0.1
  6. Wisconsin0.1
  7. 50 states and D.C.0.2

Source: CMS NPPES, primary taxonomy 247ZC0005X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.0% of these records appear in a Medicare file, against 0.4% 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. California0.0%
  2. United States0.4%

Clinical Laboratory Director (Non-physician) records in California, measured

  • In a Medicare file0 of 21 · 0.0% here, 0.4% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.2% nationally
  • Not updated in five years or more13 · 61.9% here, 50.9% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 247ZC0005X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

21 NPPES records list clinical laboratory director (non-physician) (247ZC0005X) as their primary taxonomy with a practice address in California: 0.1 per 100,000 residents against 0.2 nationally (50 states and D.C.). Los Angeles has 5 of them (24%).

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. North Carolina20
  2. Maryland17
  3. Michigan14
  4. New Jersey14

States with a similar rate per 100,000

  1. Pennsylvania0.1
  2. Virginia0.1
  3. Arizona0.1
  4. Massachusetts0.1

The largest states

  1. Texas58
  2. New York47
  3. Florida33
  4. Georgia33
  5. Ohio31

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.