Chia-Bing Chang, MD
Anesthesiology · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 4
- 2 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
4 plans · 2 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chang’s office at (408) 559-2011 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
4 of 4 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 |
California Medical Board record
Licence A103658 · Current
Licensed to practise in California · since 2008 · expires 2028-05-31 · Ohio State University College 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.
- 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
$36,460
Medicare paid this office $36,460 for 221 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Anesthesia for other procedure on large bowel using an endoscope | 50 | $5,849 | $117 |
| Anesthesia for lens surgery | 47 | $5,034 | $105 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 13 | $1,455 | $112 |
Who their Medicare patients are
221 Original Medicare patients in 2024. Average age 74 · Women 59% · Also on Medicaid 8% · Health risk score 1.03. At or below the middle of the specialty; the typical anesthesiology clinician is at 1.54.
Conditions among them: High blood pressure 72% · Diabetes 30% · Coronary heart disease 29% · Atrial fibrillation 21% · Cancer 19% · Depression 17% · Chronic kidney disease 14% · Heart failure 12% · COPD 10% · Stroke 7% · Dementia 6%.
The office billed $544,018, Medicare allowed $45,690 and paid $36,460; for 242 services of 53 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 | 221 | 242 | 74 | 1.03 | $544,018 | $36,460 |
| 2023 | 234 | 257 | 75 | 1.05 | $477,428 | $41,144 |
| 2022 | 219 | 254 | 74 | 1.04 | $443,442 | $38,955 |
| 2021 | 252 | 322 | 75 | 1.32 | $550,642 | $46,965 |
| 2020 | 187 | 228 | 74 | 1.31 | $444,842 | $40,319 |
| 2019 | 232 | 292 | 74 | 1.53 | $500,066 | $45,443 |
| 2018 | 135 | 184 | 71 | 2.02 | $377,580 | $25,761 |
| 2017 | 68 | 123 | 72 | 1.69 | $224,269 | $15,717 |
| 2016 | 179 | 242 | 73 | 1.72 | $249,850 | $36,780 |
| 2015 | 227 | 267 | 73 | 1.99 | $274,245 | $40,714 |
| 2014 | 220 | 296 | 72 | 1.71 | $313,132 | $48,021 |
| 2013 | 297 | 356 | 74 | 1.63 | $318,238 | $58,250 |
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: 6 services
| Anesthesia for other procedure on large bowel using an endoscope | 43 | $4,932 | $115 |
| Anesthesia for lens surgery | 38 | $4,463 | $114 |
| Anesthesia for procedure on small and large bowel using an endoscope | 18 | $2,704 | $150 |
| Anesthesia for retinal surgery | 11 | $2,056 | $187 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 17 | $1,951 | $115 |
| Anesthesia for exam of colon using an endoscope | 15 | $1,686 | $112 |
2022: 6 services
| Anesthesia for other procedure on large bowel using an endoscope | 50 | $6,420 | $126 |
| Anesthesia for lens surgery | 34 | $3,776 | $111 |
| Anesthesia for retinal surgery | 11 | $1,967 | $179 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 15 | $1,873 | $117 |
| Anesthesia for procedure on small and large bowel using an endoscope | 12 | $1,733 | $144 |
| Anesthesia for exam of colon using an endoscope | 12 | $1,248 | $104 |
2021: 6 services
| Anesthesia for lens surgery | 56 | $6,744 | $120 |
| Anesthesia for other procedure on large bowel using an endoscope | 33 | $4,366 | $132 |
| Anesthesia for procedure on small and large bowel using an endoscope | 15 | $2,239 | $149 |
| Anesthesia for other procedure on lower leg, ankle, and foot bones | 11 | $1,792 | $163 |
| Ultrasonic guidance for needle placement | 22 | $623 | $28 |
| Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 14 | $458 | $33 |
2020: 4 services
| Anesthesia for other procedure on large bowel using an endoscope | 30 | $4,205 | $140 |
| Anesthesia for lens surgery | 32 | $4,143 | $126 |
| Anesthesia for retinal surgery | 17 | $3,090 | $182 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 15 | $1,967 | $131 |
2019: 4 services
| Anesthesia for lens surgery | 52 | $6,442 | $119 |
| Anesthesia for other procedure on large bowel using an endoscope | 23 | $3,009 | $131 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 11 | $1,411 | $128 |
| Ultrasonic guidance for needle placement | 14 | $409 | $29 |
2018: 6 services
| Anesthesia for lens surgery | 38 | $4,456 | $114 |
| Anesthesia for procedure for total knee joint replacement | 13 | $3,916 | $301 |
| Anesthesia for procedure on small and large bowel using an endoscope | 12 | $1,669 | $139 |
| Injection of substance into lower spine canal | 15 | $1,140 | $76 |
| Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 13 | $520 | $40 |
| Ultrasonic guidance for needle placement | 13 | $376 | $29 |
2017: 4 services
| Anesthesia for procedure for total knee joint replacement | 12 | $3,679 | $307 |
| Anesthesia for lens surgery | 15 | $1,725 | $115 |
| Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 17 | $766 | $43 |
| Ultrasonic guidance for needle placement | 14 | $429 | $29 |
2016: 3 services
| Anesthesia for lens surgery | 59 | $7,243 | $119 |
| Anesthesia for other procedure on upper abdomen | 12 | $4,134 | $318 |
| Ultrasonic guidance for needle placement | 18 | $536 | $30 |
2015: 4 services
| Anesthesia for lens surgery | 92 | $10,096 | $107 |
| Anesthesia for other procedure on upper abdomen | 12 | $3,583 | $299 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 14 | $2,013 | $144 |
| Ultrasonic guidance for needle placement | 15 | $443 | $30 |
2014: 9 services
| Anesthesia for lens surgery | 64 | $7,116 | $109 |
| Anesthesia for other procedure on upper abdomen | 16 | $4,622 | $272 |
| Anesthesia for procedure on upper 2/3rd of thigh bone | 11 | $2,881 | $262 |
| Anesthesia for other procedure on lower abdomen | 11 | $2,436 | $221 |
| Anesthesia for other procedure on skin of arms, legs, and front body | 17 | $2,232 | $131 |
| Anesthesia for procedure on gastrointestinal tract using an endoscope | 13 | $2,215 | $170 |
| Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 14 | $749 | $53 |
| Insertion of artery tube for blood sampling or infusion through skin | 14 | $624 | $45 |
| Ultrasonic guidance for needle placement | 16 | $479 | $30 |
2013: 4 services
| Anesthesia for lens surgery | 123 | $14,794 | $119 |
| Anesthesia for placement or revision of blood flow shunt | 18 | $4,705 | $261 |
| Anesthesia for other procedure on eye | 11 | $1,809 | $164 |
| Insertion of artery tube for blood sampling or infusion through skin | 19 | $823 | $43 |
Medicaid work
$474 in 2019
Medicaid paid $474 for 33 billed services this clinician did in 2019, up to 17 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 procedures on eye; lens surgery | 33 | $474 |
| 2019 | 33 | 1 | 17 | $474 |
| 2018 | 12 | 1 | 12 | $21 |
See the largest Medicaid services in earlier years
2018
| Anesthesia for procedures on eye; lens surgery | 12 | $21 |
Money from drug and device companies
$20 in 2019
A payment is not proof that care is biased.
| AbbVie | Creon | $20 | 1 payment
|
See the published payment
| AbbVie | Meals · 2019-03-19 | Creon | $20 |
Professional record
- NPI
- 1558569624
- Licence
- CA A103658California A103658: Current · expires 2028-05-31
- Trained
- Ohio State University College of Medicine, 2006
- Group
- G2 Anesthesia PC
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207L00000X (207L00000X)
- Mailing address
- Po Box 84294, Seattle, WA, 98124
- NPI first listed
- 2007-07-10
- NPI last updated
- 2011-06-02
This is when the NPI record was last certified, not a medical board exam.