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Robert A Weiss, MD

Anesthesiology · Los Gatos

NPI 1174694517

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Office
1

Offices

1 location · El Camino Anesthesia · 61 clinicians in this group

Looking this up.

Hospitals listed: El Camino Health. 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. Weiss’s office at (408) 378-6131 to ask if they take your plan before you enroll.

California Medical Board record

Licence G59901 · Current

Licensed to practise in California · since 1987 · expires 2026-11-30 · Michigan State University College of Human 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.

  • 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
See every measure and the patient survey for El Camino Health

Behind the star rating — Deaths: 3 better, 5 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 1 better, 9 the same, 1 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at El Camino Health
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.291BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.393BetterOct 2024 – Sep 2025
MRSA BacteremiaInfections0BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths0.96 (0.12 to 1.79) · 2,340 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.02 (0.76 to 1.28)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths167.38 (125.03 to 209.73) · 96 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths2.6 · 68 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths7.1 · 185 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths11.8 · 200 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths8.9 · 814 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths13 · 842 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths9.6 · 361 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.6 · 4,633 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.16 (0 to 0.34) · 11,474 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.27 (0.1 to 0.45) · 11,626 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths3.14 (1.39 to 4.9) · 2,814 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths2 (0.61 to 3.39) · 1,327 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.11 (0.8 to 3.43) · 2,641 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths9.39 (4.18 to 14.6) · 1,287 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths6.57 (3.47 to 9.68) · 1,308 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths2.14 (0.71 to 3.57) · 827 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.6 (0.05 to 1.15) · 9,460 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths4.5 · 122 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.993No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.706No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections1.376No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits15.5 · 218 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits19.5 · 962 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits3.8 · 200 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-17 · 922 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits18.6 · 860 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits18.7 · 827 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits6.1 (4.5 to 8.2) · 313 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits13.4 (10.6 to 16.5) · 313 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits6.1 · 144 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits10.3 · 80 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20.7 · 237 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.8 (10 to 16.1) · 1,639 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.9 (0.8 to 1.1) · 1,619 casesNo differentJan 2024 – Dec 2024

What patients said (1,535 patients answered, 22% of those asked)

Patient survey stars by topic at El Camino Health
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information3
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at El Camino Health
Room was "always" clean75%
Nurses "always" communicated well79%
Doctors "always" communicated well81%
Staff "always" explained61%
Yes, staff "did" give patients this information86%
Yes, staff "did" give patients information about help after discharge86%
Doctors "always" explained things so they could understand76%
Doctors "always" listened carefully80%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)76%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand75%
Nurses "always" listened carefully76%
Nurses "always" treated them with courtesy and respect87%
"Always" quiet at night47%
"YES", patients would definitely recommend the hospital80%
Staff "always" explained possible side effects46%
Yes, staff "did" give patients information about possible symptoms86%

Original Medicare doctor bills

$17,728

Medicare paid this office $17,728 for 89 people.

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

Largest Original Medicare bills
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope13$1,753$135
Anesthesia for other procedure on large bowel using an endoscope12$1,394$116

Who their Medicare patients are

89 Original Medicare patients in 2024. Average age 77 · Women 40% · Health risk score 1.53. At or below the middle of the specialty; the typical anesthesiology clinician is at 1.54.

Conditions among them: High blood pressure 75% · Atrial fibrillation 38% · Coronary heart disease 37% · Diabetes 35% · Chronic kidney disease 31% · Cancer 30% · Heart failure 18%.

The office billed $223,190, Medicare allowed $22,457 and paid $17,728; for 93 services of 35 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 by year
20248993771.53$223,190$17,728
20235660751.62$165,823$13,051
20228392771.39$298,573$24,616
2021155204771.38$647,277$47,755
2020139162771.58$513,606$36,891
2019176222771.40$776,532$57,548
2018202263761.44$842,854$57,700
2017212316771.59$672,989$65,402
2016207286771.53$212,009$66,161
2015236299771.51$95,487$71,199
2014215289751.54$103,196$76,321
2013190294761.48$104,813$76,943

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

2021: 3 services

Original Medicare services billed in 2021
Anesthesia for procedure on heart and large blood vessels16$8,678$482
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope11$1,721$156
Insertion of artery tube for blood sampling or infusion through skin22$908$39

2020: 2 services

Original Medicare services billed in 2020
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope13$2,122$152
Anesthesia for other procedure on large bowel using an endoscope12$1,581$132

2019: 2 services

Original Medicare services billed in 2019
Anesthesia for procedure on heart and large blood vessels11$5,441$495
Insertion of artery tube for blood sampling or infusion through skin14$598$40

2018: 5 services

Original Medicare services billed in 2018
Anesthesia for lens surgery18$2,171$121
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope12$1,636$136
Insertion of tube in pulmonary artery for monitoring14$1,178$84
Insertion of artery tube for blood sampling or infusion through skin20$743$37
Ultrasonic guidance for blood vessel access14$185$12

2017: 10 services

Original Medicare services billed in 2017
Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older)12$8,440$703
Anesthesia for procedure on heart and large blood vessels14$6,713$479
Anesthesia for lens surgery28$3,486$125
Anesthesia for procedure on gastrointestinal tract using an endoscope17$2,353$138
Anesthesia for procedure on lower intestine using an endoscope15$2,277$152
Insertion of tube in pulmonary artery for monitoring15$1,579$105
Insertion of artery tube for blood sampling or infusion through skin36$1,511$42
Ultrasound of heart with probe in esophagus, with report13$1,207$93
Insertion of non-tunneled central venous tube for infusion (5 years or older)12$1,196$100
Ultrasonic guidance for blood vessel access15$181$12

2016: 7 services

Original Medicare services billed in 2016
Anesthesia for procedure on heart and large blood vessels13$6,882$529
Anesthesia for other procedure on upper abdomen11$3,380$307
Anesthesia for procedure on gastrointestinal tract using an endoscope12$2,076$173
Anesthesia for procedure on lower intestine using an endoscope12$1,966$164
Insertion of artery tube for blood sampling or infusion through skin45$1,928$43
Anesthesia for electroshock therapy12$1,772$111
Insertion of tube in pulmonary artery for monitoring12$1,293$108

2015: 7 services

Original Medicare services billed in 2015
Anesthesia for procedure on heart and large blood vessels13$6,747$519
Anesthesia for procedure on gastrointestinal tract using an endoscope34$5,423$160
Anesthesia for procedure on lower intestine using an endoscope22$3,807$173
Anesthesia for other procedure on upper abdomen13$3,804$293
Anesthesia for lens surgery22$3,018$137
Insertion of artery tube for blood sampling or infusion through skin39$1,786$45
Insertion of tube in pulmonary artery for monitoring11$1,233$112

2014: 4 services

Original Medicare services billed in 2014
Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older)12$9,142$762
Anesthesia for procedure on gastrointestinal tract using an endoscope38$6,216$164
Insertion of artery tube for blood sampling or infusion through skin45$2,006$45
Insertion of tube in pulmonary artery for monitoring17$1,915$113

2013: 6 services

Original Medicare services billed in 2013
Anesthesia for procedure on heart and large blood vessels using heart-lung machine (1 year or older)20$15,200$760
Anesthesia for other procedure on upper abdomen14$4,605$329
Anesthesia for procedure on gastrointestinal tract using an endoscope25$4,311$172
Insertion of tube in pulmonary artery for monitoring31$3,394$109
Anesthesia for other closed procedure on chest11$2,781$253
Insertion of artery tube for blood sampling or infusion through skin58$2,510$43

Money from drug and device companies

$190 in 2025

Industry payments by year
202522None$190
202411None$104

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

A payment is not proof that care is biased.

Payments by company
StrykerIconix$171
1 payment
  • Meals for Iconix · 2025-01-07 · $171
Octapharma USABalfaxar$19
1 payment
  • Meals for Balfaxar · 2025-06-17 · $19
See all 2 published payments
Every published payment
Octapharma USAMeals · 2025-06-17Balfaxar$19
StrykerMeals · 2025-01-07Iconix$171
See earlier years (2024)

2024: $104

Payments by company in 2024
StrykerIconix$104
1 payment
  • Meals for Iconix · 2024-01-12 · $104

Professional record

NPI
1174694517
Licence
CA G59901California G59901: Current · expires 2026-11-30
Trained
Michigan State University College of Human Medicine, 1983
Gender
Male
More record details
Sole proprietor
No
Medicaid ID
CA GR0042170
Taxonomy
Federal specialty code 207L00000X (207L00000X)
Mailing address
1422 El Camino Real, Menlo Park, CA, 94025
NPI first listed
2006-11-09
NPI last updated
2014-11-26

This is when the NPI record was last certified, not a medical board exam.