NPPES file of Aug 9, 2026

Rheumatology Physician in Maryland

214 NPPES records list rheumatology physician with a practice address in Maryland, 3.5 per 100,000 residents, the 5th highest rate of 51. Baltimore and Bethesda have the most; each record links to the provider's NPI and the Maryland license search. Page 5 of 5.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RR0500X · method

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

Baltimore has the most, 70

  1. Baltimore70
  2. Bethesda27
  3. Rockville13
  4. Catonsville7
  5. Chevy Chase7

Rheumatology Physician records in Maryland

  1. Michael Ward, MDBethesda, MD 208921720238744
  2. Lawrence Weber, M.D.Baltimore, MD 212011942395967
  3. Emma Weeding, MDCrofton, MD 211141841649423
  4. Fredrick Wigley, M.D.Baltimore, MD 212241407891823
  5. Ronald Wilder, M.D.Bethesda, MD 208171740304617
  6. Sandra Williams, M.D., PH.D.Bethesda, MD 208921720468317
  7. James Witter, M.D., PHDBethesda, MD 208921629084231
  8. David Wolfe, MDChevy Chase, MD 208151104825249
  9. William Yap, M.D.Baltimore, MD 212281568438802
  10. Moe Zan, M.D.Columbia, MD 210461831365378
  11. Qianzi Zhao, MDBethesda, MD 208921063161586
  12. Louisa Ziglar, MDFrederick, MD 217021538336151
  13. Carol Ziminski, M.D.Baltimore, MD 212871598792350
  14. Thomas Zizic, M.D.Baltimore, MD 212391609900109

Source: CMS NPPES, primary taxonomy 207RR0500X: records by practice city and the list of records, file of Aug 9, 2026.

Maryland ranks 5 of 51 per resident

  1. Massachusetts4.9
  2. New Hampshire4.1
  3. Connecticut4.0
  4. Maryland3.5
  5. Pennsylvania3.2
  6. New York3.1
  7. 50 states and D.C.2.4

Source: CMS NPPES, primary taxonomy 207RR0500X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

75.2% of these records appear in a Medicare file, against 81.6% 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. Maryland75.2%
  2. United States81.6%

Rheumatology Physician records in Maryland, measured

  • In a Medicare file161 of 214 · 75.2% here, 81.6% nationally
  • In the CMS Doctors and Clinicians file132 · 61.7% here, 69.5% nationally
  • Not updated in five years or more126 · 58.9% here, 56.6% nationally
  • Median graduation year2001 · the 132 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RR0500X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

214 NPPES records list rheumatology physician (207RR0500X) as their primary taxonomy with a practice address in Maryland: 3.5 per 100,000 residents against 2.4 nationally (50 states and D.C.). Baltimore has 70 of them (33%).

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. Michigan226
  2. Washington200
  3. Virginia197
  4. Georgia196

States with a similar rate per 100,000

  1. Pennsylvania3.2
  2. New York3.1
  3. Minnesota3.0
  4. Connecticut4.0

The largest states

  1. California926
  2. New York599
  3. Texas545
  4. Florida494
  5. Pennsylvania413

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.