Benjamin J Shanker, MD
Anesthesiology · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 7
- 3 carriers
- Office
- 1
Offices
1 location · G2 Anesthesia PC · 104 clinicians in this group
Looking this up.
Hospitals listed: Good Samaritan Hospital. That is not proof they admit you there this week.
Plans that list them
7 plans · 3 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Shanker’s office at (408) 559-2011 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
7 of 7 plans
| Astiva Health C-SNP WOW - NorCal (HMO C-SNP) | Astiva Health | Listed | Sep 27, 2026 |
| Astiva Health Premier Plan - NorCal (HMO) | Astiva Health | Listed | Sep 27, 2026 |
| Astiva Health Savings Plan - NorCal (HMO) | Astiva Health | Listed | Sep 27, 2026 |
| Blue Shield Inspire (HMO) | Blue Shield of California | Listed | Aug 26, 2026 |
| Imperial Courage Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Dynamic Plan (HMO) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
| Imperial Senior Value (HMO C-SNP) | Imperial Health Plan of California, Inc. | Listed | Sep 1, 2026 |
California Medical Board record
Licence A123184 · Current
Licensed to practise in California · since 2012 · expires 2028-09-30 · Mount Sinai School of Medicine of New York University.
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.
- Good Samaritan HospitalSan Jose, CAAcute Care Hospital · Proprietary · Has an emergency department · Birthing-friendlyPart of HCA Healthcare, which runs 185 hospitals in 19 statesPatients rate it 2 of 5 · 67% would definitely recommend itOverall rating: 2 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.337, Oct 2024 – Sep 2025
See every measure and the patient survey for Good Samaritan Hospital
Behind the star rating — Deaths: 0 better, 8 the same, 0 worse of 8 measures. Safety: 1 better, 6 the same, 1 worse of 8 measures. Readmissions: 0 better, 5 the same, 4 worse of 9 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Clostridium Difficile (C.Diff)Infections | 0.337 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.75 (0 to 1.67) · 1,340 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.84 (0.54 to 1.14) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 143.59 (98.7 to 188.49) · 98 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.7 · 45 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 7.1 · 100 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 12.7 · 270 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 11.3 · 573 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 15.6 · 820 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 8.5 · 482 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.3 · 3,711 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.12 (0 to 0.3) · 8,866 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.2 (0.01 to 0.38) · 9,051 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 2.65 (0.74 to 4.56) · 1,929 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.8 (0.21 to 3.39) · 670 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.33 (0.88 to 3.78) · 1,836 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 6.73 (0 to 13.46) · 669 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 7.58 (3.96 to 11.19) · 654 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.59 (0.13 to 3.04) · 496 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.27 (0 to 0.87) · 7,373 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.1 · 152 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 1.08 | No different | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.542 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.484 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 1.565 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 15.8 · 327 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 24.2 · 703 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 61.1 · 289 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 36.3 · 665 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 25.4 · 856 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 19 · 978 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 6.3 · 144 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 12.3 · 46 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 21.2 · 135 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 13.8 (10.1 to 18.6) · 129 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 1.2 (0.9 to 1.5) · 531 cases | No different | Jan 2024 – Dec 2024 |
What patients said (704 patients answered, 24% of those asked)
| Cleanliness | 3 |
| Nurse communication | 3 |
| Doctor communication | 2 |
| Communication about medicines | 2 |
| Discharge information | 3 |
| Overall hospital rating | 2 |
| Quietness | 1 |
| Recommend hospital | 3 |
| Room was "always" clean | 66% |
| Nurses "always" communicated well | 75% |
| Doctors "always" communicated well | 71% |
| Staff "always" explained | 54% |
| Yes, staff "did" give patients this information | 83% |
| Yes, staff "did" give patients information about help after discharge | 81% |
| Doctors "always" explained things so they could understand | 66% |
| Doctors "always" listened carefully | 69% |
| Doctors "always" treated them with courtesy and respect | 78% |
| Patients who gave a rating of "9" or "10" (high) | 63% |
| Staff "always" explained new medications | 68% |
| Nurses "always" explained things so they could understand | 69% |
| Nurses "always" listened carefully | 73% |
| Nurses "always" treated them with courtesy and respect | 82% |
| "Always" quiet at night | 38% |
| "YES", patients would definitely recommend the hospital | 67% |
| Staff "always" explained possible side effects | 40% |
| Yes, staff "did" give patients information about possible symptoms | 86% |
Original Medicare doctor bills
$44,645
Medicare paid this office $44,645 for 246 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Anesthesia for lens surgery | 54 | $6,237 | $115 |
| Anesthesia for other procedure on large bowel using an endoscope | 36 | $4,364 | $121 |
| Anesthesia for x-ray or radiation therapy | 15 | $2,941 | $184 |
| Anesthesia for procedure on small and large bowel using an endoscope | 11 | $1,616 | $147 |
Who their Medicare patients are
246 Original Medicare patients in 2024. Average age 75 · Women 54% · Also on Medicaid 13% · Health risk score 1.34. At or below the middle of the specialty; the typical anesthesiology clinician is at 1.54.
Conditions among them: High blood pressure 75% · Coronary heart disease 34% · Diabetes 32% · Chronic kidney disease 28% · Atrial fibrillation 28% · Heart failure 19% · Cancer 19% · Depression 18% · COPD 15% · Stroke 10% · Dementia 8%.
The office billed $661,572, Medicare allowed $55,679 and paid $44,645; for 268 services of 49 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 | 246 | 268 | 75 | 1.34 | $661,572 | $44,645 |
| 2023 | 190 | 210 | 74 | 1.12 | $405,800 | $34,271 |
| 2022 | 183 | 208 | 75 | 1.01 | $370,642 | $32,431 |
| 2021 | 233 | 285 | 75 | 1.26 | $510,070 | $45,607 |
| 2020 | 224 | 316 | 75 | 1.52 | $623,477 | $57,734 |
| 2019 | 288 | 465 | 74 | 2.50 | $485,185 | $67,759 |
| 2018 | 117 | 180 | 73 | 2.14 | $305,900 | $28,409 |
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: 3 services
| Anesthesia for other procedure on large bowel using an endoscope | 45 | $4,938 | $110 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 13 | $1,464 | $113 |
| Anesthesia for exam of colon using an endoscope | 11 | $1,264 | $115 |
2022: 4 services
| Anesthesia for lens surgery | 42 | $5,104 | $119 |
| Anesthesia for other procedure on large bowel using an endoscope | 28 | $3,707 | $132 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 15 | $1,779 | $119 |
| Anesthesia for procedure on small and large bowel using an endoscope | 13 | $1,749 | $135 |
2021: 5 services
| Anesthesia for lens surgery | 55 | $6,876 | $121 |
| Anesthesia for other procedure on large bowel using an endoscope | 42 | $5,992 | $143 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 21 | $2,646 | $126 |
| Anesthesia for procedure on small and large bowel using an endoscope | 16 | $2,409 | $151 |
| Ultrasonic guidance for needle placement | 17 | $487 | $29 |
2020: 10 services
| Anesthesia for other procedure on large bowel using an endoscope | 26 | $3,764 | $145 |
| Anesthesia for other procedure on upper abdomen | 11 | $3,081 | $280 |
| Anesthesia for lens surgery | 23 | $3,047 | $132 |
| Anesthesia for retinal surgery | 14 | $2,862 | $204 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 19 | $2,731 | $144 |
| Anesthesia for procedure on small and large bowel using an endoscope | 12 | $1,806 | $151 |
| Anesthesia for exam of colon using an endoscope | 11 | $1,389 | $126 |
| Insertion of artery tube for blood sampling or infusion through skin | 21 | $837 | $40 |
| Ultrasonic guidance for needle placement | 13 | $380 | $29 |
| Ultrasonic guidance for blood vessel access | 19 | $263 | $13 |
2019: 12 services
| Anesthesia for heart artery bypass grafting on heart-lung machine | 11 | $7,967 | $724 |
| Anesthesia for other procedure on large bowel using an endoscope | 61 | $6,728 | $110 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 48 | $5,971 | $117 |
| Anesthesia for placement or revision of blood flow shunt | 17 | $3,908 | $217 |
| Anesthesia for procedure on small and large bowel using an endoscope | 24 | $3,105 | $129 |
| Anesthesia for other procedure on upper abdomen | 11 | $3,057 | $278 |
| Ultrasound of heart with probe in esophagus, with report | 17 | $1,686 | $94 |
| Insertion of artery tube for blood sampling or infusion through skin | 33 | $1,284 | $38 |
| Insertion of tube in pulmonary artery for monitoring | 16 | $1,201 | $75 |
| Ultrasonic guidance for blood vessel access | 32 | $490 | $12 |
| Ultrasound of heart blood flow, valves and chambers | 16 | $268 | $16 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | 16 | $46 | $3 |
2018: 4 services
| Anesthesia for other procedure on large bowel using an endoscope | 21 | $2,614 | $124 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 17 | $2,053 | $121 |
| Insertion of artery tube for blood sampling or infusion through skin | 16 | $598 | $37 |
| Ultrasonic guidance for blood vessel access | 14 | $208 | $12 |
Medicaid work
$2,337 in 2019
Medicaid paid $2,337 for 67 billed services this clinician did in 2019, up to 16 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.
| Anesthesia for lower gastrointestinal endoscopic procedure, distal to duodenum | 51 | $1,858 |
| Anesthesia for upper gastrointestinal endoscopic procedure proximal to duodenum | 16 | $479 |
| 2019 | 67 | 2 | 16 | $2,337 |
| 2018 | 13 | 1 | 13 | $518 |
See the largest Medicaid services in earlier years
2018
| Anesthesia for lower intestinal endoscopic procedures, endoscope introduced distal to duodenum; screening colonoscopy | 13 | $518 |
Money from drug and device companies
$22 in 2020
| 2020 | 1 | 1 | None | $22 |
| 2019 | 3 | 4 | None | $51 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Stimwave Technologies | Cfns Stimq Peripheral Nerve Stimulatorsystem | $22 | 1 payment
|
See the published payment
| Stimwave Technologies | Meals · 2020-01-04 | Cfns Stimq Peripheral Nerve Stimulatorsystem | $22 |
See earlier years (2019)
2019: $51
| Electronic Waveform Lab | None | $21 | 2 payments
|
| Merck Sharp & Dohme | Bridion | $17 | 1 payment
|
| Mallinckrodt Enterprises | Ofirmev | $12 | 1 payment
|
Professional record
- NPI
- 1477843167
- Licence
- CA A123184California A123184: Current · expires 2028-09-30
- Group
- G2 Anesthesia PC
- Gender
- Male
More record details
- Sole proprietor
- Yes
- Taxonomy
- Federal specialty code 207L00000X (207L00000X)
- Mailing address
- 14004 Chandler Blvd, Sherman Oaks, CA, 91401
- NPI first listed
- 2011-04-14
- NPI last updated
- 2018-06-07
This is when the NPI record was last certified, not a medical board exam.