NPPES file of Aug 9, 2026

Allergy & Immunology (Internal Medicine) Physician in Ohio

11 NPPES records list allergy & immunology (internal medicine) physician with a practice address in Ohio, 0.1 per 100,000 residents, the 37th highest rate of 47. Toledo and Cleveland have the most; each record links to the provider's NPI and the Ohio license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RA0201X · method

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

Toledo has the most, 3

  1. Toledo3
  2. Cleveland2
  3. Cincinnati1
  4. Columbus1
  5. Fairlawn1

Allergy & Immunology (Internal Medicine) Physician records in Ohio

  1. Masood Ahmad, MDWest Chester, OH 450691699856559
  2. Huy Dang, MDMassillon, OH 446461689753105
  3. Charity Fox, MDColumbus, OH 432121871506147
  4. Yasmin Hassoun, MDCincinnati, OH 452291316354020
  5. David Hunter, MDToledo, OH 436061184606725
  6. Margaret KuderCleveland, OH 441951447637954
  7. Leon Neiman, MDFairlawn, OH 443331437167814
  8. Sonya ParasharCleveland, OH 441951942706767
  9. Ronald Purcell, M.D.Willoughby Hills, OH 440941437358801
  10. Farrukh Sheikh, MDToledo, OH 436171023009743
  11. Richard Wiseley, MDToledo, OH 436061710969985

Source: CMS NPPES, primary taxonomy 207RA0201X: records by practice city and the list of records, file of Aug 9, 2026.

Ohio ranks 37 of 47 per resident

  1. Georgia0.1
  2. Delaware0.1
  3. Oregon0.1
  4. Ohio0.1
  5. Montana0.1
  6. Utah0.1
  7. 50 states and D.C.0.2

Source: CMS NPPES, primary taxonomy 207RA0201X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

54.5% of these records appear in a Medicare file, against 78.6% 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. Ohio54.5%
  2. United States78.6%

Allergy & Immunology (Internal Medicine) Physician records in Ohio, measured

  • In a Medicare file6 of 11 · 54.5% here, 78.6% nationally
  • In the CMS Doctors and Clinicians file6 · 54.5% here, 64.0% nationally
  • Not updated in five years or more8 · 72.7% here, 51.0% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RA0201X); 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 allergy & immunology (internal medicine) physician (207RA0201X) as their primary taxonomy with a practice address in Ohio: 0.1 per 100,000 residents against 0.2 nationally (50 states and D.C.). Toledo has 3 of them (27%).

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. Georgia11
  2. Colorado12
  3. Washington12
  4. Michigan16

States with a similar rate per 100,000

  1. Florida0.1
  2. Pennsylvania0.2
  3. Texas0.2
  4. New Jersey0.2

The largest states

  1. California81
  2. New York61
  3. Texas50
  4. Maryland30
  5. Missouri28

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.