Diana Tsai, MD

5 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Hospitals listed: El Camino Health · Good Samaritan Hospital. That is not proof they admit you there this week.

Licence A72927 · Current

Licensed to practise in California · since 2000 · expires 2028-01-31 · Saint Louis University School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

2 hospitals

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

• El Camino HealthMountain View, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPart of El Camino Health, which runs 2 hospitalsPatients rate it 4 of 5 · 80% would definitely recommend it
  Overall rating: 4 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.291, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.393, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0, Oct 2024 – Sep 2025
• Good Samaritan HospitalSan Jose, CAAcute Care Hospital · Proprietary · Has an emergency department · Birthing-friendlyPart of HCA Healthcare, which runs 185 hospitals in 19 statesPatients rate it 2 of 5 · 67% would definitely recommend it
  Overall rating: 2 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.337, Oct 2024 – Sep 2025

$46,270

Medicare paid this office $46,270 for 207 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Who their Medicare patients are

207 Original Medicare patients in 2024. Average age 82 · 85 and older 37% · Women 55% · Also on Medicaid 8% · Health risk score 1.75. At or below the middle of the specialty; the typical hospitalist clinician is at 2.49.

Conditions among them: High blood pressure 75% · Coronary heart disease 48% · Atrial fibrillation 45% · Heart failure 43% · Chronic kidney disease 43% · Diabetes 40% · Depression 31% · Stroke 29% · Dementia 27% · COPD 25% · Cancer 22%.

The office billed $176,562, Medicare allowed $58,203 and paid $46,270; for 480 services of 8 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

$4,903

Pharmacies billed $4,903 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 10% of their Part D prescriptions (12 of 118) in 2024. A higher opioid share than 9 in 10 peers; the typical hospitalist clinician is at 4%.

110 generic and fewer than 11 brand-name prescriptions · $4,903 in drug cost · 33 antibiotic prescriptions to 24 people.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Year by year

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

$20 in 2025

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

NPI

1669534467

Licence

CA A72927California A72927: Current · expires 2028-01-31

Trained

Saint Louis University School of Medicine, 1999

Group

Sutter Bay Medical Foundation

Gender

Female