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Compare the published Medicare service mix of Kara Orsak, M.D. with clinicians in the same registry specialty: Specialty details in registry.

CA · Exact areaEdit location

2024 published service data · 80 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Kim Hoang Vu

Family Practice · Geriatric Medicine (CMS) · Pomona, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
71%Service-mix similarityView profile →

Juan Francisco Najarro, M.D.

Specialty details in registry · Loma Linda, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
71%Service-mix similarityView profile →

Mairead Joan Torsney-Weir, MD

Family Practice · Geriatric Medicine (CMS) · Marina Del Rey, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
62%Service-mix similarityView profile →

Roger Nguyen Tran, MD

Family Practice · Geriatric Medicine (CMS) · Laguna Hills, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
57%Service-mix similarityView profile →

Karun Singla, MD

Family Practice · General Practice · Geriatric Medicine (CMS) · San Diego, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
56%Service-mix similarityView profile →

Jae Hoon Lee, M.D.

Specialty details in registry · Santa Ana, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
56%Service-mix similarityView profile →

Miriam Cho, M.D

Family Practice · Geriatric Medicine (CMS) · Riverside, CA

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)
54%Service-mix similarityView profile →

Rashmin M. Panchal, MD

Specialty details in registry · Harbor City, CA

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)
54%Service-mix similarityView profile →

Michael L Richardson, M.D.

Family Practice · General Surgery (CMS) · Vacaville, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
52%Service-mix similarityView profile →

Daniel Kwon, DO

Family Practice (CMS) · Paramount, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
52%Service-mix similarityView profile →

Farah Alsaati, MD

Geriatric Medicine (CMS) · Union City, CA

Shared published services
1 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
52%Service-mix similarityView profile →

Minerva Catalan Navarro, MD

Geriatric Medicine (CMS) · Mountain View, CA

Shared published services
2 shared services · view billing descriptions
  • Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)
  • Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes (99309)
50%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.