NPPES file of Aug 9, 2026

Hematology (Pathology) Physician in California

65 NPPES records list hematology (pathology) physician with a practice address in California, 0.2 per 100,000 residents, the 16th highest rate of 41. Los Angeles and Duarte have the most; each record links to the provider's NPI and the California license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207ZH0000X · 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, 14

  1. Los Angeles14
  2. Duarte11
  3. San Francisco9
  4. Carlsbad7
  5. Aliso Viejo3

Hematology (Pathology) Physician records in California

  1. Nora Sun, M.D.Torrance, CA 905021629124755
  2. Patrick Treseler, MDSan Francisco, CA 941431801847181
  3. Michael Van Ness, M.D.San Juan Capistrano, CA 926751336450113
  4. Endi Wang, M.D.Los Angeles, CA 900891689616823
  5. Huan-You Wang, MD, PHDSan Diego, CA 921031689633729
  6. Jun Wang, M.D.Loma Linda, CA 923541578586301
  7. Linlin Wang, MD, PHDSan Francisco, CA 941431144539099
  8. Wei WangDuarte, CA 910101205463395
  9. Yiping Wang, M.DWest Hills, CA 913041528282233
  10. Wendy Yang, MDCarlsbad, CA 920081730338484
  11. David Yau, MDLos Angeles, CA 900331528295946
  12. Mingjian You, M.D., PH.D.Duarte, CA 910101659353845
  13. Changjun Yue, M.D., PH.D.Irvine, CA 926121942424536
  14. Aine Yung, M.D.Carlsbad, CA 920081588965800
  15. Hongbin Zha, MDLos Angeles, CA 900271841361821

Source: CMS NPPES, primary taxonomy 207ZH0000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 16 of 41 per resident

  1. Rhode Island0.2
  2. Missouri0.2
  3. Texas0.2
  4. California0.2
  5. Arkansas0.2
  6. Illinois0.2
  7. 50 states and D.C.0.1

Source: CMS NPPES, primary taxonomy 207ZH0000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

52.3% of these records appear in a Medicare file, against 62.3% 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. California52.3%
  2. United States62.3%

Hematology (Pathology) Physician records in California, measured

  • In a Medicare file34 of 65 · 52.3% here, 62.3% nationally
  • In the CMS Doctors and Clinicians file29 · 44.6% here, 56.9% nationally
  • Not updated in five years or more41 · 63.1% here, 51.6% nationally
  • Median graduation year1998 · the 29 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207ZH0000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

65 NPPES records list hematology (pathology) physician (207ZH0000X) as their primary taxonomy with a practice address in California: 0.2 per 100,000 residents against 0.1 nationally (50 states and D.C.). Los Angeles has 14 of them (22%).

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 York51
  2. Texas51
  3. Florida32
  4. Minnesota27

States with a similar rate per 100,000

  1. Illinois0.2
  2. Missouri0.2
  3. Tennessee0.1
  4. Virginia0.1

The largest states

  1. New York51
  2. Texas51
  3. Florida32
  4. Minnesota27
  5. Illinois20

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.