A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

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

SPRING, TX · Exact areaEdit location

2024 published service data · 20 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Vi Tan, O.D.

Optometrist · Spring, TX

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
77%Service-mix similarityView profile →

Connie Choua, OD

Optometrist · Spring, TX

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
76%Service-mix similarityView profile →

Michael Koch, OD

Optometrist · Spring, TX

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
63%Service-mix similarityView profile →

Grant William Gibson, O.D.

Optometrist · Spring, TX

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
61%Service-mix similarityView profile →

Melissa Minh-Hang Tran, O.D.

Optometrist · Spring, TX

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
53%Service-mix similarityView profile →

Katherine Moore Charrier, OD

Optometrist · Spring, TX

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
52%Service-mix similarityView profile →

Auzita Sajjadi, OD

Optometrist · Spring, TX

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
49%Service-mix similarityView profile →

Brian Cox, O.D.

Optometrist · Spring, TX

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
48%Service-mix similarityView profile →

Richard Lee Scott, O.D.

Optometrist · Spring, TX

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
45%Service-mix similarityView profile →

Paul Francis Harter, O.D.

Optometrist · Spring, TX

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
44%Service-mix similarityView profile →

Martin Joseph Baumohl, O.D.

Optometrist · Spring, TX

Shared published services
2 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
  • New patient complete exam of visual system (92004)
42%Service-mix similarityView profile →

Jennifer Dinh Nguyen, O.D.

Optometrist · Spring, TX

Shared published services
1 shared services · view billing descriptions
  • Established patient complete exam of visual system (92014)
35%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.