NPPES file of Aug 9, 2026

Surgery Physician in Massachusetts

1,003 NPPES records list surgery physician with a practice address in Massachusetts, 14 per 100,000 residents, the 5th highest rate of 51. Boston and Springfield have the most; each record links to the provider's NPI and the Massachusetts license search. Page 21 of 21.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 208600000X · 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, 443

  1. Boston443
  2. Springfield50
  3. Worcester45
  4. Brighton39
  5. Burlington35

Surgery Physician records in Massachusetts

  1. Vellia Zhou, MDBoston, MA 021141972442432
  2. Ya Zhou, M.D.Springfield, MA 011991750813648
  3. Kelley Zwicker, MSC, MD, FRCPCBrookline, MA 024461023358835

Source: CMS NPPES, primary taxonomy 208600000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 5 of 51 per resident

  1. North Dakota18
  2. Maine16
  3. Pennsylvania14
  4. Massachusetts14
  5. New Hampshire14
  6. Rhode Island14
  7. 50 states and D.C.10

Source: CMS NPPES, primary taxonomy 208600000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

66.4% of these records appear in a Medicare file, against 73.7% 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. Massachusetts66.4%
  2. United States73.7%

Surgery Physician records in Massachusetts, measured

  • In a Medicare file666 of 1,003 · 66.4% here, 73.7% nationally
  • In the CMS Doctors and Clinicians file503 · 50.1% here, 58.0% nationally
  • Not updated in five years or more605 · 60.3% here, 54.4% nationally
  • Median graduation year2003 · the 503 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 208600000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,003 NPPES records list surgery physician (208600000X) as their primary taxonomy with a practice address in Massachusetts: 14 per 100,000 residents against 10 nationally (50 states and D.C.). Boston has 443 of them (44%).

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. Georgia991
  2. Virginia865
  3. North Carolina1,170
  4. Washington791

States with a similar rate per 100,000

  1. Pennsylvania14.4
  2. New Hampshire14.0
  3. Rhode Island13.8
  4. Michigan13.7

The largest states

  1. California3,118
  2. Texas2,192
  3. New York2,053
  4. Florida1,887
  5. Pennsylvania1,867

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.