NPPES file of Aug 9, 2026

Molecular Genetic Pathology (Pathology) Physician in California

24 NPPES records list molecular genetic pathology (pathology) physician with a practice address in California, 0.1 per 100,000 residents, the 18th highest rate of 30. Los Angeles and Stanford 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 207ZP0007X · 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. Stanford4
  3. San Francisco3
  4. Duarte2
  5. Irvine2

Molecular Genetic Pathology (Pathology) Physician records in California

  1. Patricia Aoun, MDDuarte, CA 910101295791218
  2. Robert Bookstein, MDLos Angeles, CA 900481699294074
  3. Jae ElkindSan Diego, CA 921031922497700
  4. Wayne Grody, MDLos Angeles, CA 900951235165796
  5. Matthew Hiemenz, MDLos Angeles, CA 900271306075379
  6. Jennifer Hummel, M.D.Aliso Viejo, CA 926561942496609
  7. Nancy Joseph, M.D.San Francisco, CA 941431669799078
  8. Beatrice Knudsen, M.D., PH.D.Los Angeles, CA 900481255779278
  9. Lauren LawrenceRedwood City, CA 940631760846604
  10. Jacqueline Lekostaj, M.D., PH.D.Carlsbad, CA 920081659692317
  11. Franklin Mullins, M.D., PH.D.Stanford, CA 943051255529715
  12. Anamaria MunteanuLos Angeles, CA 900951689161275
  13. Erik Nohr, MDStanford, CA 943051043796188
  14. Justin Odegaard, MD, PHDPalo Alto, CA 943041275965162
  15. Girish Putcha, MD, PHDStanford, CA 943051700082559
  16. Saed Rahmat Sadeghi, MDIrvine, CA 926021235572819
  17. Juan-Sebastian Saldivar, MDDuarte, CA 910101194832972
  18. Stuart Scott, PHDPalo Alto, CA 943041447864111
  19. Elliott Seeley, M.D., PH.D.San Francisco, CA 941431003187212
  20. Jeffry Simko, MDSan Francisco, CA 941431225095748
  21. Athanasios Tsiatis, MDSouth San Francisco, CA 940801417004391
  22. Linda Wasserman, M.D.San Diego, CA 921031033265780
  23. Jennifer Wei, M.D., PHDIrvine, CA 926181194051219
  24. Danica Wiredja, MDStanford, CA 943051811459696

Source: CMS NPPES, primary taxonomy 207ZP0007X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 18 of 30 per resident

  1. Pennsylvania0.1
  2. Kansas0.1
  3. Missouri0.1
  4. California0.1
  5. North Carolina0.1
  6. Illinois0.0
  7. 50 states and D.C.0.1

Source: CMS NPPES, primary taxonomy 207ZP0007X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

20.8% of these records appear in a Medicare file, against 49.7% 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. California20.8%
  2. United States49.7%

Molecular Genetic Pathology (Pathology) Physician records in California, measured

  • In a Medicare file5 of 24 · 20.8% here, 49.7% nationally
  • In the CMS Doctors and Clinicians file5 · 20.8% here, 42.0% nationally
  • Not updated in five years or more16 · 66.7% here, 49.1% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207ZP0007X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

24 NPPES records list molecular genetic pathology (pathology) physician (207ZP0007X) as their primary taxonomy with a practice address in California: 0.1 per 100,000 residents against 0.1 nationally (50 states and D.C.). Los Angeles has 5 of them (21%).

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 York17
  2. Minnesota14
  3. Washington10

The largest states

  1. New York17
  2. Minnesota14
  3. Washington10
  4. Ohio9
  5. Pennsylvania9

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.