NPPES file of Aug 9, 2026

Dermatopathology Physician in Washington

11 NPPES records list dermatopathology physician with a practice address in Washington, 0.1 per 100,000 residents, the 23rd highest rate of 47. Bellevue and Seattle have the most; each record links to the provider's NPI and the Washington license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207ND0900X · method

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

Bellevue has the most, 5

  1. Bellevue5
  2. Seattle2
  3. Everett1
  4. Liberty Lake1
  5. Mill Creek1

Dermatopathology Physician records in Washington

  1. Zsolt Argenyi, MDSeattle, WA 981951861538480
  2. Casey Carlos, MDBellevue, WA 980041710149430
  3. Sanhwan ChenEverett, WA 982011932165784
  4. Robert Findlay, MDUniversity Place, WA 984671548278435
  5. Kyle Garton, MDBellevue, WA 980051578673372
  6. Ashley Hamstra, M.D.Liberty Lake, WA 990191316216369
  7. Caitlin May, M.D.Bellevue, WA 980051215370630
  8. Michael Piepkorn, M.D.Bellevue, WA 980051609975226
  9. Nan Ring, MDSeattle, WA 981121083063549
  10. Thomas Weir, M.D.Bellevue, WA 980041639278260
  11. John Zhang, M.D.Mill Creek, WA 980121699947747

Source: CMS NPPES, primary taxonomy 207ND0900X: records by practice city and the list of records, file of Aug 9, 2026.

Washington ranks 23 of 47 per resident

  1. Vermont0.2
  2. Wisconsin0.2
  3. Maine0.1
  4. Washington0.1
  5. Minnesota0.1
  6. Alabama0.1
  7. 50 states and D.C.0.2

Source: CMS NPPES, primary taxonomy 207ND0900X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

81.8% of these records appear in a Medicare file, against 74.9% 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. Washington81.8%
  2. United States74.9%

Dermatopathology Physician records in Washington, measured

  • In a Medicare file9 of 11 · 81.8% here, 74.9% nationally
  • In the CMS Doctors and Clinicians file7 · 63.6% here, 66.2% nationally
  • Not updated in five years or more6 · 54.5% here, 54.0% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207ND0900X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

11 NPPES records list dermatopathology physician (207ND0900X) as their primary taxonomy with a practice address in Washington: 0.1 per 100,000 residents against 0.2 nationally (50 states and D.C.). Bellevue has 5 of them (45%).

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. Colorado11
  2. Kentucky10
  3. Massachusetts12
  4. New Jersey10

States with a similar rate per 100,000

  1. Georgia0.1
  2. Texas0.1
  3. Illinois0.1
  4. California0.2

The largest states

  1. California64
  2. Florida41
  3. Texas40
  4. New York36
  5. Pennsylvania29

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.