Caroline M Castillo, MD

4 locations · University of California Sfgh Medical Group · University of California San Francisco · UCSF Medical Group Business Services

Hospitals listed: 059016 · 557116 · UCSF Medical Center · Zuckerberg San Francisco General Hosp & Trauma Ctr. That is not proof they admit you there this week.

9 plans · 1 carrier

Licence A121829 · Current

Licensed to practise in California · since 2012 · expires 2027-11-30 · Cornell University Medical College.

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

What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.

Specialty certification

• American Board of Family Medicine - Family Medicine

Medicare did not publish checkup rates for this clinician.

2 hospitals

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

• UCSF Medical CenterSan Francisco, CAAcute Care Hospital · Voluntary non-profit - Other · Has an emergency department · Birthing-friendlyPart of University of California Health, which runs 12 hospitalsHome of UCSF Helen Diller Family Comprehensive Cancer Center, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 81% would definitely recommend it
  Overall rating: 4 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 4.9 (3.79 to 6.02) · 7,590 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 12.8 (11.3 to 14.4) · 2,019 cases, Jan 2024 – Dec 2024Better than the national rate — Death rate among surgical inpatients with serious treatable complications: 139.4 (110.22 to 168.58) · 452 cases, Jul 2022 – Jun 2024Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.622, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.626, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.491, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.8 (0.7 to 1) · 2,336 cases, Jan 2024 – Dec 2024
• Zuckerberg San Francisco General Hosp & Trauma CtrSan Francisco, CAAcute Care Hospital · Government - Local · Has an emergency department · Birthing-friendlyPart of San Francisco Health Network, which runs 2 hospitalsPatients rate it 3 of 5 · 72% would definitely recommend it
  Overall rating: 2 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.449, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.37, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.538, Oct 2024 – Sep 2025

$27,951

Medicare paid this office $27,951 for 167 people.

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

Who their Medicare patients are

167 Original Medicare patients in 2024. Average age 71 · Under 65 14% · 85 and older 7% · Women 80% · Also on Medicaid 47% · Health risk score 1.68. Above the middle of the specialty; the typical family practice clinician is at 1.13.

Conditions among them: High blood pressure 54% · Diabetes 29% · Depression 28% · Chronic kidney disease 24% · Coronary heart disease 19% · Heart failure 17% · COPD 17% · Cancer 16% · Atrial fibrillation 14% · Dementia 10% · Stroke 8%.

The office billed $173,573, Medicare allowed $35,906 and paid $27,951; for 379 services of 23 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.

$3,255 in 2024

Medicaid paid $3,255 for 27 billed services this clinician did in 2024, up to 13 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

$163,535

Pharmacies billed $163,535 in 2024.

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

Opioids were 3% of their Part D prescriptions (45 of 1,702) in 2024. Above the middle of the specialty; the typical family practice clinician is at 2%.

1,472 generic and fewer than 11 brand-name prescriptions · $163,535 in drug cost · 34 antibiotic prescriptions to 23 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.

$89 in 2023

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

A payment is not proof that care is biased.

NPI

1114217742

Licence

CA A121829California A121829: Current · expires 2027-11-30

Group

University of California Sfgh Medical Group · University of California San Francisco · UCSF Medical Group Business Services

Video visits

Lists video visits

Gender

Female