NPPES file of Aug 9, 2026

Infectious Disease Physician in District of Columbia

110 NPPES records list infectious disease physician with a practice address in District of Columbia, 16.2 per 100,000 residents, the 1st highest rate of 51. Washington and Washington Dc have the most; each record links to the provider's NPI and the District of Columbia license search. Page 3 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RI0200X · method

Washington has the most, 109

Infectious Disease Physician records in District of Columbia

  1. Susan Thompson, M.D.Washington Dc, DC 204221265525562
  2. Rosemary Tiernan, MD, MPHWashington, DC 200101235296807
  3. Joseph TimponeWashington, DC 200071134129059
  4. Alexander VostalWashington, DC 200071588198048
  5. Amy Weintrob, M.D.Washington, DC 204221457365769
  6. Ronald Wilcox, MDWashington, DC 200601336160357
  7. Christian Woods, MDWashington, DC 200101477507820
  8. Glenn Wortmann, M.D.Washington, DC 200101518053529
  9. Nyein Yu, M.D.Washington, DC 200161003348525
  10. Michael Zapor, MD, PHDWashington, DC 203071932182151

Source: CMS NPPES, primary taxonomy 207RI0200X: records by practice city and the list of records, file of Aug 9, 2026.

District of Columbia ranks 1 of 51 per resident

  1. District of Columbia16.2
  2. Massachusetts7.0
  3. Maryland6.6
  4. 50 states and D.C.3.2

Source: CMS NPPES, primary taxonomy 207RI0200X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

59.1% of these records appear in a Medicare file, against 79.0% 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. District of Columbia59.1%
  2. United States79.0%

Infectious Disease Physician records in District of Columbia, measured

  • In a Medicare file65 of 110 · 59.1% here, 79.0% nationally
  • In the CMS Doctors and Clinicians file46 · 41.8% here, 68.4% nationally
  • Not updated in five years or more74 · 67.3% here, 56.5% nationally
  • Median graduation year1998 · the 46 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RI0200X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

110 NPPES records list infectious disease physician (207RI0200X) as their primary taxonomy with a practice address in District of Columbia: 16.2 per 100,000 residents against 3.2 nationally (50 states and D.C.). Washington has 109 of them (99%).

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. Kentucky111
  2. Alabama112
  3. South Carolina119
  4. Puerto Rico120

States with a similar rate per 100,000

  1. Massachusetts7.0
  2. Maryland6.6
  3. Rhode Island6.0
  4. Connecticut5.6

The largest states

  1. California1,119
  2. New York970
  3. Florida760
  4. Texas674
  5. Pennsylvania545

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.