NPPES file of Aug 9, 2026

Clinical Pathology/Laboratory Medicine Physician in Massachusetts

52 NPPES records list clinical pathology/laboratory medicine physician with a practice address in Massachusetts, 0.7 per 100,000 residents, the 8th highest rate of 49. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207ZP0105X · method

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

Boston has the most, 35

  1. Boston35
  2. Worcester6
  3. Burlington2
  4. Roxbury Crossing2
  5. Belmont1

Clinical Pathology/Laboratory Medicine Physician records in Massachusetts

  1. Jane Yang, MDWeston, MA 024931023970753
  2. Su Zheng, M.D.Worcester, MA 016081437103082

Source: CMS NPPES, primary taxonomy 207ZP0105X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 8 of 49 per resident

  1. South Dakota1.3
  2. New Mexico1.3
  3. Connecticut0.8
  4. Massachusetts0.7
  5. Washington0.7
  6. Pennsylvania0.7
  7. 50 states and D.C.0.4

Source: CMS NPPES, primary taxonomy 207ZP0105X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

36.5% of these records appear in a Medicare file, against 49.3% 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. Massachusetts36.5%
  2. United States49.3%

Clinical Pathology/Laboratory Medicine Physician records in Massachusetts, measured

  • In a Medicare file19 of 52 · 36.5% here, 49.3% nationally
  • In the CMS Doctors and Clinicians file18 · 34.6% here, 41.7% nationally
  • Not updated in five years or more35 · 67.3% here, 65.6% nationally
  • Median graduation year1998 · the 18 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207ZP0105X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

52 NPPES records list clinical pathology/laboratory medicine physician (207ZP0105X) as their primary taxonomy with a practice address in Massachusetts: 0.7 per 100,000 residents against 0.4 nationally (50 states and D.C.). Boston has 35 of them (67%).

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. Washington58
  2. Illinois63
  3. Arizona40
  4. Indiana40

States with a similar rate per 100,000

  1. Pennsylvania0.7
  2. Connecticut0.8
  3. Iowa0.5
  4. New York0.5

The largest states

  1. California131
  2. New York102
  3. Pennsylvania86
  4. Florida83
  5. Wisconsin80

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.