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Compare the published Medicare service mix of Tadhg Schempf, MD with clinicians in the same registry specialty: Ophthalmology (CMS).

PA · Exact areaEdit location

2024 published service data · 13 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Ayan Chatterjee, M.D.

Ophthalmology (CMS) · King Of Prussia, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
62%Service-mix similarityView profile →

Michael P Smith, MD

Ophthalmology (CMS) · Wyomissing, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
61%Service-mix similarityView profile →

Qi N Cui, M.D., PH.D.

Ophthalmology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
59%Service-mix similarityView profile →

Monica Shengxu Zhang, MD

Ophthalmology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
53%Service-mix similarityView profile →

Andrew Williams, MD

Ophthalmology (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
53%Service-mix similarityView profile →

Shelley Xinran Mo, M.D.

Ophthalmology (CMS) · Lancaster, PA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Imaging of optic nerve (92133)
  • Ultrasound scan of cornea to determine thickness (76514)
51%Service-mix similarityView profile →

Zachary Nadler

Ophthalmology (CMS) · Abington, PA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Imaging of optic nerve (92133)
  • Ultrasound scan of cornea to determine thickness (76514)
51%Service-mix similarityView profile →

Lillian Khowong To, MD

Ophthalmology (CMS) · Pittsburgh, PA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
50%Service-mix similarityView profile →

Abhishek Kumar Nemani, MD

Ophthalmology (CMS) · Wyomissing, PA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
49%Service-mix similarityView profile →

Alex Barathan Theventhiran, M.D.

Ophthalmology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
48%Service-mix similarityView profile →

Mehul Harish Nagarsheth, MD

Ophthalmology (CMS) · Wyomissing, PA

Shared published services
3 shared services · view billing descriptions
  • Established patient problem focused exam of visual system (92012)
  • Exam of the internal drainage system of eye (92020)
  • Imaging of optic nerve (92133)
48%Service-mix similarityView profile →

Victoria Marie Addis, M.D.

Ophthalmology (CMS) · Philadelphia, PA

Shared published services
3 shared services · view billing descriptions
  • Exam of the internal drainage system of eye (92020)
  • Established patient complete exam of visual system (92014)
  • Imaging of optic nerve (92133)
43%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.