NPPES file of Aug 9, 2026

Cornea and External Diseases Specialist Physician in Massachusetts

10 NPPES records list cornea and external diseases specialist physician with a practice address in Massachusetts, 0.1 per 100,000 residents, the 14th highest rate of 44. Boston and Andover have the most; each record links to the provider's NPI and the Massachusetts license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207WX0120X · 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, 6

  1. Boston6
  2. Andover1
  3. Brookline1
  4. Burlington1
  5. Waltham1

Cornea and External Diseases Specialist Physician records in Massachusetts

  1. Azin Abazari, MDBoston, MA 021141164625133
  2. Prachi Dua, M.D.Andover, MA 018101922341247
  3. James Gregoire, MDBrookline, MA 024451639673676
  4. Sara King-Sella, MDBoston, MA 022151417505082
  5. Stephan Ong Tone, MDCM, PHD, FRCSCBoston, MA 021141538646989
  6. Naveen Rao, M.D.Burlington, MA 018051437323656
  7. Walid Sabbah, M.D.Boston, MA 022151295628626
  8. Jae Young You, M.D.Boston, MA 021141518250679
  9. Crystal Zhang, MDWaltham, MA 024511376047415
  10. Paul ZhouBoston, MA 021141396494043

Source: CMS NPPES, primary taxonomy 207WX0120X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 14 of 44 per resident

  1. New York0.1
  2. Oklahoma0.1
  3. District of Columbia0.1
  4. Massachusetts0.1
  5. California0.1
  6. Pennsylvania0.1
  7. 50 states and D.C.0.1

Source: CMS NPPES, primary taxonomy 207WX0120X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

70.0% of these records appear in a Medicare file, against 95.6% 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. Massachusetts70.0%
  2. United States95.6%

Cornea and External Diseases Specialist Physician records in Massachusetts, measured

  • In a Medicare file7 of 10 · 70.0% here, 95.6% nationally
  • In the CMS Doctors and Clinicians file6 · 60.0% here, 85.3% nationally
  • Not updated in five years or more1 · 10.0% here, 28.9% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207WX0120X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

10 NPPES records list cornea and external diseases specialist physician (207WX0120X) as their primary taxonomy with a practice address in Massachusetts: 0.1 per 100,000 residents against 0.1 nationally (50 states and D.C.). Boston has 6 of them (60%).

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. Georgia10
  2. Ohio10
  3. Oregon10
  4. Missouri15

States with a similar rate per 100,000

  1. California0.1
  2. New York0.1
  3. Pennsylvania0.1
  4. Illinois0.2

The largest states

  1. California54
  2. Texas33
  3. New York29
  4. Illinois20
  5. Florida19

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.