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Compare the published Medicare service mix of Adrian Zaharia, M.D. with clinicians in the same registry specialty: Family Practice · Geriatric Medicine (CMS).

HOUSTON, TX · Exact areaEdit location

2024 published service data · 18 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Rodrigo C Guanlao, MD

Family Practice · Geriatric Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • 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)
84%Service-mix similarityView profile →

Milton Alonzo Guerrero, MD, CMD

Family Practice · Geriatric Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • 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)
80%Service-mix similarityView profile →

Cynthia Gordon Tanguilig-Robinson, M.D.

Family Practice · Geriatric Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • 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)
76%Service-mix similarityView profile →

Elenita L Rosado, M.D.

Family Practice · Geriatric Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • 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)
72%Service-mix similarityView profile →

Jerome Charles Wasserstein, D.O.

Family Practice · Geriatric Medicine (CMS) · Houston, TX

Shared published services
3 shared services · view billing descriptions
  • Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more (99308)
  • 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)
72%Service-mix similarityView profile →

Julia Reyser, MD

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

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

Titus K Venyah, M.D.

Family Practice (CMS) · Houston, TX

Shared published services
2 shared services · view billing descriptions
  • Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a (G0179)
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
25%Service-mix similarityView profile →

Kurt Philip Merkelz, M.D.

Specialty details in registry · Houston, TX

Shared published services
1 shared services · view billing descriptions
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
11%Service-mix similarityView profile →

Adeeba K Akhtar, M.D.

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

Shared published services
1 shared services · view billing descriptions
  • Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes (99349)
5%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.