A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Tonya Ketcham, O.D. with clinicians in the same registry specialty: Optometrist.

HOUSTON, TX · Exact areaEdit location

2024 published service data · 227 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Danica Marrelli, O.D.

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
100%Service-mix similarityView profile →

Joe Leonard Wheat, O.D.

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
100%Service-mix similarityView profile →

Lloyd Pate, O.D.

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
100%Service-mix similarityView profile →

Michael L Suber, O.D.

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
87%Service-mix similarityView profile →

Chau Ngoc Vi, O.D.

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
74%Service-mix similarityView profile →

David Adrian Garza, OD

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
72%Service-mix similarityView profile →

Quan Manh Nguyen, O.D.

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
70%Service-mix similarityView profile →

George Nickola Zaibaq, O.D.

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
69%Service-mix similarityView profile →

Thuyuyen Ngoc Hoang, OD

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
68%Service-mix similarityView profile →

Elizabeth Maria Trujillo, OD

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
67%Service-mix similarityView profile →

Elaine Marie Steffensen

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
66%Service-mix similarityView profile →

Zahraa Majeed, OD

Optometrist · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Imaging of optic nerve (92133)
  • Exam of visual field with extended testing (92083)
65%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.