CMS Care Compare

UCSF HEALTH ST. MARY'S HOSPITAL

SAN FRANCISCO, CA · Acute Care Hospitals · Voluntary non-profit - Private. Emergency services available. 47 CMS-published quality measures, refreshed quarterly.

CMS overall rating4/5

If you have a bill from UCSF HEALTH ST. MARY'S HOSPITAL, you can start with a free preliminary audit that checks every charge against six federal sources.

Quality data updated 35 days ago·verified today·Source: CMS Care Compare (Hospital Quality Metrics)

Quick facts

CCN (CMS Provider Number): 050457
Address: 450 STANYAN ST, SAN FRANCISCO, CA 94117
Phone: (415) 668-1000
County: SAN FRANCISCO
Type: Acute Care Hospitals
Ownership: Voluntary non-profit - Private
Emergency services: Yes
Birthing-friendly designation: Not reported

Federal patient rights

Charity care may be available

UCSF HEALTH ST. MARY'S HOSPITAL is registered as Voluntary non-profit - Private. Non-profit hospitals are required by Section 501(r) of the Affordable Care Act to maintain a written Financial Assistance Policy (FAP) and to offer free or discounted care to patients below specific income thresholds — typically tied to a multiple of the Federal Poverty Level set by HHS.

→Hospitals must publicize the FAP — usually on the hospital’s billing or financial-assistance webpage and on the bill itself.
→The application is generally called a “Financial Assistance Application” or “Patient Financial Assistance.”
→Hospitals can’t initiate “extraordinary collection actions” (the IRS regulatory term, 26 CFR §1.501(r)-6) while a FAP application is pending.
→Verify federal §501(c)(3) status via the IRS Tax Exempt Organization Search.

The §501(r) requirements are codified at 26 USC §501(r), with enforcement details at 26 CFR §1.501(r)-3 through 1.501(r)-6. Reference: IRS Charitable Hospitals — General Requirements.

Federal price-transparency status

Federal Hospital Price Transparency rules (45 CFR §180.50) require hospitals to publish a machine-readable file listing standard charges for every item and service. Our system did not find machine-readable rate data for UCSF HEALTH ST. MARY'S HOSPITAL in the DoltHub HPT v3 community dataset we aggregate — that may mean the file hasn’t been published yet, has been published in a format the community dataset hasn’t parsed, or hasn’t reached our last ingest window.

Medicare allowed amounts (from the CMS Physician Fee Schedule) are shown below as a federally-set fair-market reference. When you upload an actual bill from this hospital, our audit also pulls cash-pay and commercial benchmarks from every other available source.

Service	Hospital chargemaster	Cash-pay	Median commercial	Medicare
CPT 99213 Office visit, established patient (low complexity)	—	—	—	$98
CPT 99214 Office visit, established patient (moderate complexity)	—	—	—	$139
CPT 99215 Office visit, established patient (high complexity)	—	—	—	$197
CPT 99284 ER visit (Level 4, moderate complexity)	—	—	—	$119
CPT 99285 ER visit (Level 5, high complexity)	—	—	—	$173
CPT 71045 Chest X-ray, single view	—	—	—	$26
CPT 70450 CT head/brain without contrast	—	—	—	$110
CPT 76700 Abdominal ultrasound, complete	—	—	—	$118
CPT 73221 MRI upper extremity joint without contrast	—	—	—	$212
CPT 27447 Total knee arthroplasty	—	—	—	$1,170
CPT 47562 Laparoscopic cholecystectomy	—	—	—	$635
CPT 45378 Colonoscopy, diagnostic	—	—	—	$390

Why the dashes. Each — in the hospital chargemaster, cash-pay, and median commercial columns means that figure is absent from the dataset for this hospital. Federal rule 45 CFR §180.50 requires hospitals to publish all three. The Medicare column comes from the CMS Physician Fee Schedule and is shown as the federally-set baseline.

Quality measures

CMS publishes these measures quarterly through the Care Compare program. Each measure is risk-adjusted where applicable so hospitals serving sicker patients aren’t penalized for their case mix. Values shown are this hospital’s reported numbers; “Not reported” means the case volume was too low for the figure to be statistically meaningful.

Mortality

30-day risk-standardized death rates for common admission types — tracked by CMS as a hospital-level outcome measure. Lower numbers are better; CMS adjusts for case mix so hospitals serving sicker patients aren't penalized.

30-day mortality after COPD admission8.90
Lower is better
30-day mortality after coronary bypass (CABG)Not reported
Lower is better
30-day mortality after heart attack (AMI)11.9
Lower is better
30-day mortality after heart failure8.50
Lower is better
30-day mortality after pneumonia9.50
Lower is better
30-day mortality after stroke12.1
Lower is better
Hybrid hospital-wide mortality (admin + EHR data)3.50
Lower is better

Readmission

Risk-standardized rate of patients returning to any hospital within 30 days of discharge. Used by Medicare's Hospital Readmissions Reduction Program (HRRP) to set payment penalties.

30-day readmission after CABGNot reported
Lower is better
30-day readmission after COPD19.1
Lower is better
30-day readmission after heart attack14.4
Lower is better
30-day readmission after heart failure19.1
Lower is better
30-day readmission after hip/knee replacement3.90
Lower is better
30-day readmission after pneumonia16.5
Lower is better
Excess days in acute care after AMINot reported
Lower is better
Excess days in acute care after heart failure2.30
Lower is better
Excess days in acute care after pneumonia17.1
Lower is better
Hybrid hospital-wide readmission (admin + EHR data)15.2
Lower is better
READM-30-AMI-HRRPNot reported
Lower is better
READM-30-CABG-HRRPNot reported
Lower is better
READM-30-COPD-HRRPNot reported
Lower is better
READM-30-HF-HRRPNot reported
Lower is better
READM-30-HIP-KNEE-HRRPNot reported
Lower is better
READM-30-PN-HRRPNot reported
Lower is better

Complications

Patient Safety Indicators (PSI) — adverse events that may have been prevented through better care. Lower is better.

COMP_HIP_KNEE4.20
Lower is better
PSI_030.21
Lower is better
PSI_04146.7
Lower is better
PSI_060.24
Lower is better
PSI_080.32
Lower is better
PSI_092.07
Lower is better
PSI_101.63
Lower is better
PSI_1112.7
Lower is better
PSI_123.02
Lower is better
PSI_135.67
Lower is better
PSI_141.70
Lower is better
PSI_150.95
Lower is better
PSI_900.96
Lower is better

Timely care

Emergency department flow and time-to-treatment measures. Includes ED wait time, leave-without-being-seen rate, and stroke-imaging speed.

ED median time before being seen (minutes)165.0
Lower is better
ED patients leaving without being seen1.00
Lower is better
OP_18a167.0
OP_18c214.0
OP_18dNot reported
OP_2996.0
OP_31Not reported
OP_3213.1
OP_35_ADM12.0
OP_35_ED5.70
OP_361.00
OP_40Not reported
Stroke imaging within 45 min of ED arrivalNot reported
Higher is better

Other measures

Additional CMS Care Compare measures published for this facility.

EDV20.0
GMCSNot reported
GMCS_Malnutrition_Diagnosis_DocumentedNot reported
GMCS_Malnutrition_ScreeningNot reported
GMCS_Nutrition_AssessmentNot reported
GMCS_Nutritional_Care_PlanNot reported
HH_HYPERNot reported
HH_HYPONot reported
HH_ORAENot reported
IMM_361.0
SAFE_USE_OF_OPIOIDS21.0
SEP_173.0
SEP_SH_3HR80.0
SEP_SH_6HR87.0
SEV_SEP_3HR83.0
SEV_SEP_6HR99.0
STK_02Not reported
STK_03Not reported
STK_0594.0
VTE_193.0
VTE_295.0

If you have a bill from this hospital

Find out quickly whether every charge holds up.

Upload your bill. Our system reads every line, compares each charge to six federal data sources (CMS PFS, NADAC, federally-required HPT files, the National Correct Coding Initiative, CMS Hospital Compare quality data, and IRS Publication 78 for charity-care eligibility), and drafts dispute and charity-care letters with the codes, the math, and the federal-law citations already inside.

✓Line-by-line audit, every charge benchmarked.
✓Up to 5 dispute letters drafted — sign and mail.
✓Charity-care request letter drafted (§501(r)).
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Common questions

How does CMS rate UCSF HEALTH ST. MARY'S HOSPITAL?

UCSF HEALTH ST. MARY'S HOSPITAL carries a 4 of 5 overall hospital rating from the Centers for Medicare & Medicaid Services as of 2026-04-29. The rating combines mortality, safety, readmission, patient experience, and timely-care measures into a single score, refreshed quarterly.

Is UCSF HEALTH ST. MARY'S HOSPITAL a non-profit hospital?

UCSF HEALTH ST. MARY'S HOSPITAL is registered with CMS as Voluntary non-profit - Private. Non-profit hospitals are required by ACA §501(r) to offer financial assistance (charity care) to patients below specific income thresholds — the application is typically called a "Financial Assistance Application" or "FAP." You can verify §501(c)(3) status directly via the IRS Tax Exempt Organization Search.

How do I dispute a bill from UCSF HEALTH ST. MARY'S HOSPITAL?

Every patient has federal rights regardless of which hospital sent the bill: (1) request an itemized statement (HIPAA §164.524), (2) receive a Good Faith Estimate before scheduled care (No Surprises Act, 2022), (3) dispute amounts billed beyond the agreed-upon estimate or without prior consent, and (4) apply for charity care if the facility is a 501(c)(3) non-profit (ACA §501(r)). Side-by-side comparison of your itemized bill against Medicare benchmarks is the standard first step in any review.

How fresh is this data?

Quality and pricing data on this page comes from the CMS Care Compare program, refreshed quarterly. Last updated: 2026-04-29. The hospital roster (name, address, ownership) refreshes on the same cadence. Source files are linked from /data-sources, and a "Report inaccuracy" link at the bottom of this page sends a correction request that we review as quickly as we can.

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P.S. If you have a bill from UCSF HEALTH ST. MARY'S HOSPITAL on your desk right now, the fastest path is to scan it. The audit takes just a few minutes and cross-references every charge against six public data sources: CMS Medicare rates, NADAC drug acquisition costs, federally-required Hospital Price Transparency files, the CMS National Correct Coding Initiative bundling rules, CMS Hospital Compare quality data, and IRS Publication 78 for charity-care eligibility. Start the audit →

P.P.S. Because this hospital is a non-profit, you may be eligible for charity care under federal law (ACA §501(r)). Our scan drafts a §501(r) charity-care request letter alongside any dispute letters — one mailing, two protections.

P.P.P.S. The metrics on this page are from CMS Care Compare and refresh quarterly. They’re one input among several when evaluating a hospital. The other input most patients don’t look at: the hospital’s federally-required price-transparency file, which shows what the hospital actually bills for each procedure.

Source & methodology

Quality measures and hospital roster from CMS Care Compare, refreshed quarterly. Federal-source data, public domain (17 USC §105). §501(r) charity-care references from 26 USC §501(r) and IRS Publication 78. Full data-source register at /data-sources.

Other hospitals in California

Sorted by CMS overall rating where available. CMS quality metrics are one input among several when evaluating a hospital.