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Compare the published Medicare service mix of Omar A Zantua, M.D. with clinicians in the same registry specialty: Geriatric Medicine (CMS).

HOUSTON, TX · Exact areaEdit location

2024 published service data · 30 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Patrice Barnum, MD

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Advance care planning, first 30 minutes (99497)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
81%Service-mix similarityView profile →

Rachel Marie Suter, MD

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
69%Service-mix similarityView profile →

Anil Garyali, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
68%Service-mix similarityView profile →

Don Nguyen

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
64%Service-mix similarityView profile →

Biju Oommen, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
63%Service-mix similarityView profile →

Aval Na Ree Sian Green, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
51%Service-mix similarityView profile →

Theodore Joseph Trumble, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
27%Service-mix similarityView profile →

Brian Nathan Tremaine, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more (99306)
26%Service-mix similarityView profile →

Linda X Pang, MD

Geriatric Medicine · Hospice/Palliative Care (CMS) · Houston, TX

Shared published services
1 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
18%Service-mix similarityView profile →

Sistla B Krishna, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
1 shared services · view billing descriptions
  • Advance care planning, first 30 minutes (99497)
12%Service-mix similarityView profile →

Mahveen Sohail, MD

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
1 shared services · view billing descriptions
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
9%Service-mix similarityView profile →

Anil P. Thaker, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Houston, TX

Shared published services
1 shared services · view billing descriptions
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
6%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.