CMS certification 050113
San Mateo Medical Center
222 W 39th Ave, San Mateo, CA 94403
CMS does not publish an overall star rating for San Mateo Medical Center. 68% of patients who answered CMS's national survey would definitely recommend it, against a US average of 71%. On all 7 death, complication, infection and readmission measures CMS could compare, it is no different from the national rate. Emergency patients spend a median of 2 h 50 min in its emergency department before leaving (US median 2 h 42 min).
Every figure on this page is published by CMS; we arrange and explain it, and score nothing ourselves.
What patients said
Answers from patients who stayed here, collected by CMS in the national HCAHPS survey: 208 completed surveys, 15% response rate, Oct 2024 – Sep 2025.
Emergency department
How long emergency patients spent here and how some time-critical care went, from CMS's timely and effective care measures, Oct 2024 – Sep 2025. CMS classes this emergency department's patient volume as high; busier departments tend to have longer times, so the national median for departments of the same volume is shown too. These are medians over a year of visits, not a live wait time.
| Measure | This hospital | CA | US |
|---|---|---|---|
| Median time in the emergency department before leaving Lower is better · 362 visits sampled · US median for EDs of the same volume: 3 h 22 min | 2 h 50 min | 2 h 54 min | 2 h 42 min |
| Median time for psychiatric and mental health patients Lower is better · 19 visits sampled | 4 h 8 min | 4 h 20 min | 4 h 17 min |
| Left before being seen Lower is better · 41,255 patients | 3% | 2% | 2% |
| Severe sepsis and septic shock: all recommended care given Higher is better · 166 patients | 81% | 70% | 65% |
How San Mateo Medical Center compares with nearby hospitals
The closest hospitals of the same kind that CMS rates or surveys - the same city first, then the same county and ZIP area. Every figure is CMS's: the overall star rating, the share of patients who would definitely recommend the hospital, the median time emergency patients spent before leaving, and how many death, complication, infection and readmission measures CMS found better or worse than the national rate.
| Hospital | CMS stars | Would recommend | ER median time | Vs the nation |
|---|---|---|---|---|
| San Mateo Medical CenterThis hospital | Not rated | 68% | 2 h 50 min | No different |
| Kaiser Foundation Hospital - South San FranciscoSame county · South San Francisco | 4/5 | 74% | — | 1 better |
| Kaiser Foundation Hospital - Redwood CitySame county · Redwood City | 4/5 | 80% | — | 2 better |
| Sequoia HospitalSame county · Redwood City | 5/5 | 81% | 2 h 12 min | 6 better |
| AHMC Seton Medical CenterSame county · Daly City | 1/5 | 59% | 3 h 30 min | 1 better 2 worse |
| Peninsula Medical CenterSame county · Burlingame | 5/5 | 78% | 2 h 56 min | 4 better 1 worse |
Hospitals differ in size and in how sick their patients are. CMS adjusts its outcome measures for that, but a star or a percentage is a starting point for questions, not a verdict.
Deaths
How many patients died within 30 days of admission, adjusted by CMS for how sick they were. Lower is better. Data from Jul 2022 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| All patients, hospital-wide 258 cases | Too few cases | 3.6% | 3.9% |
| Pneumonia 25 cases | Too few cases | 13.9% | 15.2% |
5 more measures had too few cases here to report.
Complications
How often patients had serious complications, most of them after surgery, adjusted for how sick they were. Lower is better. Data from Jul 2022 – Jun 2024.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Serious complications, combined measure | No different | 0.97 likely 0.48 – 1.47 | 1 |
| Pressure ulcers (bed sores) 296 cases | No different | 0.53 per 1,000 likely 0 per 1,000 – 1.76 per 1,000 | 0.63 per 1,000 |
| Collapsed lung caused by a procedure 379 cases | No different | 0.21 per 1,000 likely 0 per 1,000 – 0.44 per 1,000 | 0.21 per 1,000 |
| Broken bones from falls in the hospital 381 cases | No different | 0.26 per 1,000 likely 0.05 per 1,000 – 0.48 per 1,000 | 0.27 per 1,000 |
| Bleeding or hematoma after surgery 57 cases | No different | 2.64 per 1,000 likely 0.92 per 1,000 – 4.37 per 1,000 | 2.34 per 1,000 |
| Blood clots in the lungs or legs after surgery 57 cases | No different | 3.44 per 1,000 likely 0.82 per 1,000 – 6.05 per 1,000 | 3.52 per 1,000 |
| Accidental cut or tear during abdominal surgery 45 cases | No different | 1.34 per 1,000 likely 0.25 per 1,000 – 2.43 per 1,000 | 1.06 per 1,000 |
6 more measures had too few cases here to report.
Infections caught in the hospital
Standardized infection ratio: 1.0 means as many infections as CMS predicted for a hospital like this one. Lower is better. Data from Oct 2024 – Sep 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| C. diff intestinal infections | No different | 0.66 likely 0.24 – 1.47 | 1 |
5 more measures had too few cases here to report.
Readmissions and return visits
How often patients had to come back to a hospital after going home. Lower is better. Data from Jul 2023 – Jun 2025.
| Measure | CMS comparison | This hospital | National |
|---|---|---|---|
| Readmitted after heart failure 47 cases | Too few cases | 21.8% | 21.3% |
| Readmitted after pneumonia 76 cases | Too few cases | 16.6% | 17.3% |
| Days back in hospital after pneumonia 25 cases | Too few cases | -2.3 days per 100 | — |
| Unplanned visits after an outpatient colonoscopy 167 cases | No different | 14 per 1,000 likely 10.4 per 1,000 – 18.9 per 1,000 | 13 per 1,000 |
10 more measures had too few cases here to report.
Clinicians registered at this address
212 clinicians give this hospital's street address as their practice location in NPPES, the federal provider registry. The same address can take in offices and clinics in the building, and a listing does not prove admitting privileges or current employment.
| Specialty | Clinicians |
|---|---|
| Psychiatry | 27 |
| Nurse Practitioner | 16 |
| Emergency Medicine | 14 |
| Internal Medicine | 14 |
| Physician Assistant | 11 |
| Obstetrics & Gynecology | 10 |
| Pediatrics | 10 |
| Clinical | 9 |
| Dietitian, Registered | 9 |
| Family | 7 |
| Infectious Disease | 7 |
| Occupational Therapist | 7 |
First 12 alphabetically
Money from drug and device companies
Drug and device makers have to report what they pay teaching hospitals to CMS's Open Payments program. At many teaching hospitals most of it is research funding, or royalties for inventions the hospital licensed to a company. A payment on its own does not show a conflict of interest.
- 2019 $18,601
- 2020 $30,347
- 2021 $2,236
- 2022 $76,544
- 2023 $25,853
- 2024 $488,142
- 2025 $1,903
What the 2025 general payments were for
| Type of payment | Amount | Payments |
|---|---|---|
| Debt forgiveness | $1,756 | 3 |
| Food and beverage | $147 | 1 |
Largest paying companies, 2025
| Company | Amount | Payments |
|---|---|---|
| Medline Industries LP | $962 | 1 |
| Siemens Medical Solutions USA, Inc. | $779 | 1 |
| Abbott Laboratories | $147 | 1 |
| Stryker Corporation | $15 | 1 |
Amounts are as the paying companies reported them to CMS; Open Payments data retrieved 13 Sep 2026. Full record on CMS Open Payments.
How to read this page
- Everything here is published by CMS on Care Compare. We arrange it and explain it; the star ratings and the better / worse verdicts are CMS's, not ours.
- “No different” is the most common result on most measures at most hospitals. CMS only calls a result better or worse when the difference from the national rate is statistically clear.
- Death, complication and readmission rates are adjusted by CMS for how sick patients were, so hospitals that treat sicker patients can be compared fairly.
- Infection results are ratios: 1.0 means as many infections as CMS predicted for a hospital like this one, below 1.0 is fewer.
- These are hospital-wide results. They do not rate an individual doctor, nurse or department, and they are not medical advice.
CMS Care Compare data retrieved 4 Oct 2026, refreshed weekly. Where this data comes from and how we handle it · Report an error
Common questions about San Mateo Medical Center
Is San Mateo Medical Center a good hospital?
CMS does not publish an overall star rating for San Mateo Medical Center. On all 7 death, complication, infection and readmission measures CMS could compare, it is no different from the national rate. These are hospital-wide results published by CMS; they do not rate individual doctors or departments.
Would patients recommend San Mateo Medical Center?
68% of patients who answered CMS's national survey would definitely recommend it, against a US average of 71%. The figure comes from 208 completed HCAHPS surveys.
How long is the wait in the San Mateo Medical Center emergency room?
Emergency patients spend a median of 2 h 50 min in its emergency department before leaving (US median 2 h 42 min). Among US emergency departments with high patient volume, like this one, the median is 3 h 22 min. 3% of emergency patients left before being seen (US 2%). These are medians over a year of visits, not a live wait time.
Does San Mateo Medical Center receive money from drug and device companies?
Drug and device makers reported $1,903 in payments to San Mateo Medical Center for 2025, under the federal Open Payments program. A payment on its own does not show a conflict of interest.