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Compare the published Medicare service mix of Derek Stuart Welsbie, MD, PHD with clinicians in the same registry specialty: Ophthalmology.

BALTIMORE, MD · Exact areaEdit location

2024 published service data · 117 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Bryce Chiang, MD

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
77%Service-mix similarityView profile →

Thomas Vincent Johnson, MD, PHD

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
59%Service-mix similarityView profile →

Henry Jampel, M.D.

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
57%Service-mix similarityView profile →

Allan David Jensen, MD

Ophthalmology · Baltimore, MD

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)
56%Service-mix similarityView profile →

Lily T Im, MD

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
56%Service-mix similarityView profile →

Jacob Kanter, MD

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
56%Service-mix similarityView profile →

Hyunjin Choi, MD

Ophthalmology · Baltimore, MD

Shared published services
1 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)
56%Service-mix similarityView profile →

Lauren Alyse Sielert Dhar, MD

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
55%Service-mix similarityView profile →

Pradeep Y Ramulu, MD

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
55%Service-mix similarityView profile →

Mona A Kaleem, MD

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
54%Service-mix similarityView profile →

Marjorie Klaver Warden, M.D.

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
54%Service-mix similarityView profile →

Sneh Sitaram Dhannawat, MD

Ophthalmology · Baltimore, MD

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)
  • Exam of the internal drainage system of eye (92020)
  • Ultrasound scan of cornea to determine thickness (76514)
54%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.