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Compare the published Medicare service mix of Michael Kazak, MD with clinicians in the same registry specialty: Geriatric Medicine · Internal Medicine (CMS).

CA · Exact areaEdit location

2024 published service data · 217 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Hedy Cecilia Loa, MD

Geriatric Medicine · Internal Medicine (CMS) · Ontario, CA

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)
  • Administration of influenza virus vaccine (G0008)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
81%Service-mix similarityView profile →

Shehab Saddy, MD

Geriatric Medicine · Internal Medicine (CMS) · Monterey, CA

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)
  • Injection of drug or substance under skin or into muscle (96372)
  • Administration of influenza virus vaccine (G0008)
78%Service-mix similarityView profile →

Rachel Mayorga, MD

Geriatric Medicine · Internal Medicine (CMS) · Healdsburg, CA

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)
  • Injection of drug or substance under skin or into muscle (96372)
  • Administration of influenza virus vaccine (G0008)
78%Service-mix similarityView profile →

Heather N. Doherty, M.D.

Internal Medicine (CMS) · La Jolla, CA

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)
  • Injection of drug or substance under skin or into muscle (96372)
  • Administration of influenza virus vaccine (G0008)
77%Service-mix similarityView profile →

Lawrence Rosenbaum, M.D.

Specialty details in registry · Santa Cruz, CA

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)
  • Administration of influenza virus vaccine (G0008)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
71%Service-mix similarityView profile →

Yusra Nazar Hussain, M.D.

Geriatric Medicine · Internal Medicine (CMS) · Palo Alto, CA

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)
  • Administration of influenza virus vaccine (G0008)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
68%Service-mix similarityView profile →

Suprabha N Jain, MD

Geriatric Medicine · Internal Medicine (CMS) · Pleasant Hill, CA

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)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
68%Service-mix similarityView profile →

Roxana Aminbakhsh, M.D.

Internal Medicine (CMS) · Folsom, CA

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)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
67%Service-mix similarityView profile →

Carol J Thrun, MD

General Practice · Internal Medicine (CMS) · Los Angeles, CA

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)
  • Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)
67%Service-mix similarityView profile →

Allison Moser Mays, M.D.

Geriatric Medicine · Internal Medicine (CMS) · West Hollywood, CA

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)
  • Injection of drug or substance under skin or into muscle (96372)
  • Administration of influenza virus vaccine (G0008)
66%Service-mix similarityView profile →

Nancy J Councelbaum, MD

Specialty details in registry · Irvine, CA

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)
  • Injection of drug or substance under skin or into muscle (96372)
  • Administration of influenza virus vaccine (G0008)
66%Service-mix similarityView profile →

Roopali Gupta, MD

Geriatric Medicine (CMS) · San Diego, CA

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)
  • Administration of influenza virus vaccine (G0008)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
66%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.