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Compare the published Medicare service mix of Ryszard Dworski, MD with clinicians in the same registry specialty: Allergy/Immunology · Internal Medicine (CMS).

NASHVILLE, TN · Exact areaEdit location

2024 published service data · 11 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Elizaveta Kalaidina, M.D.

Allergy/Immunology · Internal Medicine (CMS) · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Test for allergy using allergenic extract injected into skin (95024)
81%Service-mix similarityView profile →

Jennifer P Ker, MD

Allergy/Immunology · Pediatric Medicine (CMS) · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
80%Service-mix similarityView profile →

Donald T Brothers, M.D.

Allergy/Immunology (CMS) · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • Professional service for preparation and provision of 1 or more antigens (95165)
  • Test for allergy using allergenic extract (95004)
  • Professional service for multiple injections of allergen (95117)
65%Service-mix similarityView profile →

Edward Gerard Abano Iglesia, M.D.

Allergy/Immunology · Internal Medicine (CMS) · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Test to measure expiratory airflow and volume (94010)
  • Professional service for multiple injections of allergen (95117)
56%Service-mix similarityView profile →

Robert Valet, MD

Internal Medicine (CMS) · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • Test for allergy using allergenic extract (95004)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for multiple injections of allergen (95117)
56%Service-mix similarityView profile →

John M Fahrenholz, M.D.

Allergy/Immunology · Internal Medicine (CMS) · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Test to measure expiratory airflow and volume (94010)
  • Professional service for multiple injections of allergen (95117)
52%Service-mix similarityView profile →

Derek A Damin, MD

Allergy/Immunology · Internal Medicine (CMS) · Nashville, TN

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Test to measure expiratory airflow and volume (94010)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
48%Service-mix similarityView profile →

Grace Koo, M.D.

Allergy/Immunology · Internal Medicine (CMS) · Nashville, TN

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Professional service for multiple injections of allergen (95117)
43%Service-mix similarityView profile →

Irene Hsu-Jen Yuan, MD

Allergy/Immunology (CMS) · Nashville, TN

Shared published services
2 shared services · view billing descriptions
  • Professional service for multiple injections of allergen (95117)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
36%Service-mix similarityView profile →

Cosby Stone, M.D., MPH

Allergy/Immunology · Pulmonary Disease (CMS) · Nashville, TN

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
23%Service-mix similarityView profile →

Matthew Steven Krantz, M.D.

Allergy/Immunology (CMS) · Nashville, TN

Shared published services
1 shared services · view billing descriptions
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
13%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.