A DIFFERENT WAY TO EXPLORE

Similar work.
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Compare the published Medicare service mix of Erin L Rohman, MD with clinicians in the same registry specialty: Allergy/Immunology · Internal Medicine (CMS).

TN · Exact areaEdit location

2024 published service data · 67 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Laura Sawyer Green, M.D.

Allergy/Immunology (CMS) · Knoxville, 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)
97%Service-mix similarityView profile →

William Travis Cain, MD

Allergy/Immunology (CMS) · Hermitage, 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)
94%Service-mix similarityView profile →

Michael Andrew Springer, MD

Allergy/Immunology (CMS) · Knoxville, 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)
94%Service-mix similarityView profile →

John Patrick Overholt, MD

Allergy/Immunology (CMS) · Franklin, 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)
93%Service-mix similarityView profile →

Joseph Marion Wisniewski, MD

Allergy/Immunology (CMS) · Chattanooga, 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)
92%Service-mix similarityView profile →

John Michael Norvell, M.D.

Allergy/Immunology (CMS) · Franklin, 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)
92%Service-mix similarityView profile →

Megan Partridge Stauffer, MD

Allergy/Immunology (CMS) · Mount Juliet, 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)
92%Service-mix similarityView profile →

Jeffrey L Schlactus, MD

Allergy/Immunology (CMS) · Knoxville, 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)
92%Service-mix similarityView profile →

Jeremiah N. Bivins, MD

Allergy/Immunology (CMS) · Knoxville, 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)
90%Service-mix similarityView profile →

Karthik R Krishnan, MD

Allergy/Immunology · Pediatric Medicine (CMS) · Maryville, 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)
90%Service-mix similarityView profile →

Alan C Dejarnatt, MD

Allergy/Immunology (CMS) · Jackson, 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)
90%Service-mix similarityView profile →

David Curt Chaffin, M.D.

Allergy/Immunology (CMS) · Chattanooga, 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)
89%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.