Joseph S Andresen, MD
Anesthesiology · Redwood City
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Offices
- 2
Offices
2 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group
Looking this up.
Hospitals listed: Sequoia Hospital. That is not proof they admit you there this week.
Plan participation
Not verified
We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Andresen’s office to ask if they take your plan before you enroll.
California Medical Board record
Licence G50667 · Current
Licensed to practise in California · since 1983 · expires 2026-12-31 · University of California San Francisco School of Medicine.
No disciplinary actions, convictions, malpractice judgments or citations in this record.
Hospitals they work in
1 hospital
These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.
- Sequoia HospitalRedwood City, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of CommonSpirit Health, which runs 145 hospitals in 19 statesPatients rate it 4 of 5 · 81% would definitely recommend itOverall rating: 5 of 5 starsBetter than the national rate — Death rate among surgical inpatients with serious treatable complications: 104.12 (51.8 to 156.44) · 56 cases, Jul 2022 – Jun 2024Better than the national rate — Clostridium Difficile (C.Diff): 0, Oct 2024 – Sep 2025
See every measure and the patient survey for Sequoia Hospital
Behind the star rating — Deaths: 2 better, 6 the same, 0 worse of 8 measures. Safety: 1 better, 4 the same, 0 worse of 5 measures. Readmissions: 3 better, 6 the same, 0 worse of 9 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 104.12 (51.8 to 156.44) · 56 cases | Better | Jul 2022 – Jun 2024 |
| Clostridium Difficile (C.Diff)Infections | 0 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.95 (0 to 1.98) · 472 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.91 (0.58 to 1.24) | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.8 · 68 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 12.5 · 72 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 9.1 · 258 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 15.5 · 171 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 9.3 · 81 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.2 · 1,231 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.23 (0.01 to 0.44) · 3,018 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.23 (0.03 to 0.44) · 3,164 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 2.59 (0.47 to 4.71) · 1,402 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.47 (0.04 to 2.9) · 926 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 1.68 (0.21 to 3.16) · 1,310 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 9.54 (4.42 to 14.67) · 978 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 4.98 (1.61 to 8.36) · 924 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.69 (0.19 to 3.19) · 192 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.57 (0 to 1.43) · 2,501 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 3.5 · 332 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.702 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.853 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 14.2 · 67 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 22.3 · 295 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | -27.1 · 76 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -22.3 · 304 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | -4.6 · 178 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 17.3 · 180 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.1 · 305 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 10.9 · 41 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.7 · 29 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 13.1 (9.7 to 17.7) · 129 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.9 (0.7 to 1.2) · 713 cases | No different | Jan 2024 – Dec 2024 |
What patients said (631 patients answered, 27% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 3 |
| Recommend hospital | 5 |
| Room was "always" clean | 78% |
| Nurses "always" communicated well | 80% |
| Doctors "always" communicated well | 82% |
| Staff "always" explained | 60% |
| Yes, staff "did" give patients this information | 88% |
| Yes, staff "did" give patients information about help after discharge | 86% |
| Doctors "always" explained things so they could understand | 76% |
| Doctors "always" listened carefully | 81% |
| Doctors "always" treated them with courtesy and respect | 89% |
| Patients who gave a rating of "9" or "10" (high) | 77% |
| Staff "always" explained new medications | 76% |
| Nurses "always" explained things so they could understand | 77% |
| Nurses "always" listened carefully | 77% |
| Nurses "always" treated them with courtesy and respect | 88% |
| "Always" quiet at night | 55% |
| "YES", patients would definitely recommend the hospital | 81% |
| Staff "always" explained possible side effects | 44% |
| Yes, staff "did" give patients information about possible symptoms | 91% |
Original Medicare doctor bills
$36,742
Medicare paid this office $36,742 for 291 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Anesthesia for lens surgery | 225 | $25,493 | $108 |
| Anesthesia for other procedure on eye | 15 | $2,332 | $155 |
Who their Medicare patients are
291 Original Medicare patients in 2024. Average age 76 · Women 62% · Also on Medicaid 7% · Health risk score 0.83. At or below the middle of the specialty; the typical anesthesiology clinician is at 1.54.
Conditions among them: High blood pressure 60% · Diabetes 22% · Chronic kidney disease 16% · Coronary heart disease 15% · Cancer 14% · Atrial fibrillation 13% · Depression 9% · Heart failure 6% · COPD 5% · Stroke 5%.
The office billed $301,926, Medicare allowed $46,117 and paid $36,742; for 307 services of 27 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
| 2024 | 291 | 307 | 76 | 0.83 | $301,926 | $36,742 |
| 2023 | 237 | 249 | 76 | 0.85 | $282,268 | $35,435 |
| 2022 | 246 | 270 | 76 | 0.92 | $284,042 | $36,009 |
| 2021 | 216 | 227 | 76 | 1.01 | $296,795 | $38,018 |
| 2020 | 152 | 176 | 74 | 1.10 | $220,066 | $28,914 |
| 2019 | 122 | 142 | 76 | 1.24 | $187,150 | $24,490 |
| 2018 | 70 | 79 | 76 | 1.18 | $130,063 | $16,822 |
| 2017 | 108 | 121 | 75 | 1.21 | $156,568 | $20,437 |
| 2016 | 235 | 284 | 72 | 1.67 | $360,360 | $50,240 |
| 2015 | 211 | 255 | 73 | 1.53 | $333,360 | $46,109 |
| 2014 | 189 | 216 | 73 | 1.86 | $309,240 | $45,012 |
| 2013 | 225 | 267 | 74 | 1.57 | $337,080 | $46,881 |
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.
See the services billed each year
2023: 1 service
| Anesthesia for lens surgery | 160 | $18,500 | $112 |
2022: 2 services
| Anesthesia for lens surgery | 165 | $19,518 | $112 |
| Anesthesia for other procedure on eye | 14 | $1,891 | $135 |
2021: 1 service
| Anesthesia for lens surgery | 103 | $11,813 | $115 |
2020: 2 services
| Anesthesia for lens surgery | 59 | $7,413 | $122 |
| Anesthesia for other procedure on eye | 14 | $2,403 | $172 |
2019: 1 service
| Anesthesia for lens surgery | 17 | $1,958 | $115 |
2016: 7 services
| Anesthesia for procedure for total knee joint replacement | 41 | $11,501 | $281 |
| Anesthesia for procedure on lower intestine using an endoscope | 29 | $4,366 | $151 |
| Anesthesia for total hip replacement | 16 | $4,362 | $273 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 27 | $3,600 | $129 |
| Injections and continuous infusion into lower or sacral spinal canal | 27 | $2,226 | $82 |
| Anesthesia for lens surgery | 12 | $1,365 | $114 |
| Daily hospital management of continuous spinal drug administration | 22 | $1,208 | $55 |
2015: 4 services
| Anesthesia for procedure for total knee joint replacement | 42 | $12,089 | $288 |
| Anesthesia for total hip replacement | 21 | $6,059 | $289 |
| Injections and continuous infusion into lower or sacral spinal canal | 29 | $2,358 | $81 |
| Daily hospital management of continuous spinal drug administration | 24 | $1,361 | $57 |
2014: 3 services
| Anesthesia for procedure for total knee joint replacement | 29 | $9,154 | $316 |
| Daily hospital management of continuous spinal drug administration | 29 | $1,657 | $57 |
| Anesthesia for lens surgery | 12 | $1,343 | $112 |
2013: 4 services
| Anesthesia for procedure for total knee joint replacement | 28 | $8,665 | $309 |
| Daily hospital management of continuous spinal drug administration | 54 | $3,020 | $55 |
| Anesthesia for lens surgery | 24 | $2,528 | $105 |
| Injections and continuous infusion into lower or sacral spinal canal | 21 | $1,758 | $84 |
Professional record
- NPI
- 1194878439
- Licence
- CA G50667California G50667: Current · expires 2026-12-31
- Trained
- University of California, San Francisco School of Medicine, 1982
- Gender
- Male
More record details
- Sole proprietor
- No
- Medicaid ID
- CA 00G506670
- Taxonomy
- Federal specialty code 207L00000X (207L00000X)
- Mailing address
- 325 Distel Cir, Los Altos, CA, 94022
- NPI first listed
- 2007-01-19
- NPI last updated
- 2020-05-29
- NPI record certified
- 2020-05-29
This is when the NPI record was last certified, not a medical board exam.