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Compare the published Medicare service mix of George S. Horng, MD with clinicians in the same registry specialty: Critical Care (Intensivists) · Pulmonary Disease (CMS).

SAN FRANCISCO, CA · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Vinayak M. Jha, MD

Pulmonary Disease (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
77%Service-mix similarityView profile →

Sudhamayi Bhadriraju, M.D.

Critical Care (Intensivists) · Pulmonary Disease (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
66%Service-mix similarityView profile →

Franciscus Marius Delen, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
63%Service-mix similarityView profile →

Mallar Bhattacharya, MD

Anesthesiology · Critical Care (Intensivists) · Pulmonary Disease (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)
63%Service-mix similarityView profile →

Yunzhu Nona Mei, M.D.

Family Practice (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
63%Service-mix similarityView profile →

James Joseph Hershon, MD

Critical Care (Intensivists) (CMS) · San Francisco, CA

Shared published services
3 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
  • Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)
62%Service-mix similarityView profile →

Carolyn Suzanne Calfee, MD

Critical Care (Intensivists) · Internal Medicine · Pulmonary Disease (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
53%Service-mix similarityView profile →

Pablo Amador Sanchez

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
53%Service-mix similarityView profile →

Aparna Bala Sundaram, MD

Critical Care (Intensivists) · Pulmonary Disease (CMS) · San Francisco, CA

Shared published services
1 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
53%Service-mix similarityView profile →

Connor Galen O'brien, M.D.

Cardiovascular Disease (Cardiology) (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
44%Service-mix similarityView profile →

Christopher F Barnett, MD, MPH

Cardiovascular Disease (Cardiology) · Internal Medicine (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
42%Service-mix similarityView profile →

Samuel Benjamin Brusca, M.D.

Cardiovascular Disease (Cardiology) (CMS) · San Francisco, CA

Shared published services
2 shared services · view billing descriptions
  • Critical care, first 30-74 minutes (99291)
  • Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)
36%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.