Isabel Yishing Chang, MD
Anesthesiology · La Mirada
- 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 · Pih Health Physicians · 616 clinicians in this group
Looking this up.
Hospitals listed: Pih Health Hospital-Whittier. 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. Chang’s office to ask if they take your plan before you enroll.
California Medical Board record
Licence A156035 · Current
Licensed to practise in California · since 2018 · expires 2028-02-29 · Icahn School of Medicine at Mount Sinai.
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.
- Pih Health Hospital-WhittierWhittier, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of PIH Health, which runs 3 hospitalsPatients rate it 4 of 5 · 79% would definitely recommend itOverall rating: 4 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.497, Oct 2024 – Sep 2025
See every measure and the patient survey for Pih Health Hospital-Whittier
Behind the star rating — Deaths: 0 better, 8 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 0 better, 9 the same, 2 worse of 11 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 | 0.497 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.83 (0 to 1.8) · 1,222 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 1.08 (0.77 to 1.4) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 165.59 (122.43 to 208.75) · 99 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for COPD patientsComplications and deaths | 7.4 · 64 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 11.3 · 149 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 8.9 · 323 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 13.9 · 360 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 10.1 · 553 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3.1 · 4,869 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.16 (0 to 0.36) · 6,090 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.29 (0.1 to 0.49) · 6,261 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 5.56 (3.44 to 7.67) · 1,178 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.98 (0.31 to 3.64) · 255 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 3.28 (1.77 to 4.79) · 1,113 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 13.32 (5.89 to 20.76) · 256 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.96 (2.43 to 9.49) · 249 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.63 (0.16 to 3.11) · 236 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.12 (0 to 0.71) · 5,179 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4.3 · 140 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.594 | No different | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.825 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.474 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.445 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 1.39 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 13.7 · 509 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 22.4 · 1,125 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | -20.1 · 147 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 27 · 401 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 30.4 · 400 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 18.3 · 1,019 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 5 (3.3 to 7.4) · 71 cases | No different | Jan 2024 – Dec 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 13.9 (10.4 to 18.1) · 71 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 7 · 140 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 10.6 · 64 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 18.4 · 222 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 13.1 (10.1 to 16.6) · 1,770 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) · 397 cases | No different | Jan 2024 – Dec 2024 |
What patients said (2,178 patients answered, 18% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 3 |
| Communication about medicines | 3 |
| Discharge information | 3 |
| Overall hospital rating | 4 |
| Quietness | 3 |
| Recommend hospital | 5 |
| Room was "always" clean | 78% |
| Nurses "always" communicated well | 77% |
| Doctors "always" communicated well | 78% |
| Staff "always" explained | 60% |
| Yes, staff "did" give patients this information | 85% |
| Yes, staff "did" give patients information about help after discharge | 83% |
| Doctors "always" explained things so they could understand | 73% |
| Doctors "always" listened carefully | 77% |
| Doctors "always" treated them with courtesy and respect | 83% |
| Patients who gave a rating of "9" or "10" (high) | 76% |
| Staff "always" explained new medications | 74% |
| Nurses "always" explained things so they could understand | 73% |
| Nurses "always" listened carefully | 74% |
| Nurses "always" treated them with courtesy and respect | 84% |
| "Always" quiet at night | 52% |
| "YES", patients would definitely recommend the hospital | 79% |
| Staff "always" explained possible side effects | 46% |
| Yes, staff "did" give patients information about possible symptoms | 88% |
Original Medicare doctor bills
$25,766
Medicare paid this office $25,766 for 162 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 | 32 | $3,190 | $100 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 15 | $1,565 | $104 |
| Anesthesia for lens surgery | 11 | $1,279 | $116 |
| Anesthesia for procedure on small and large bowel using an endoscope | 11 | $1,098 | $100 |
Who their Medicare patients are
162 Original Medicare patients in 2024. Average age 74 · Under 65 7% · 85 and older 8% · Women 56% · Also on Medicaid 31% · Health risk score 1.76. Above the middle of the specialty; the typical anesthesiology clinician is at 1.54.
Conditions among them: High blood pressure 75% · Diabetes 43% · Chronic kidney disease 33% · Coronary heart disease 25% · Depression 22% · Heart failure 21% · Atrial fibrillation 21% · Cancer 20% · COPD 14% · Dementia 9% · Stroke 9%.
The office billed $458,250, Medicare allowed $32,685 and paid $25,766; for 183 services of 48 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 | 162 | 183 | 74 | 1.76 | $458,250 | $25,766 |
| 2023 | 194 | 220 | 73 | 2.22 | $549,000 | $32,838 |
| 2022 | 174 | 210 | 74 | 2.15 | $375,690 | $32,879 |
| 2021 | 71 | 79 | 69 | 2.25 | $112,776 | $12,856 |
| 2020 | 55 | 56 | 72 | 1.67 | $71,988 | $9,764 |
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: 5 services
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 32 | $3,556 | $111 |
| Anesthesia for other procedure on large bowel using an endoscope | 28 | $2,899 | $104 |
| Anesthesia for procedure on small and large bowel using an endoscope | 15 | $1,863 | $124 |
| Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance | 14 | $1,533 | $102 |
| Anesthesia for lens surgery | 11 | $1,343 | $122 |
2022: 8 services
| Anesthesia for other procedure on upper abdomen | 11 | $3,033 | $276 |
| Anesthesia for other procedure on large bowel using an endoscope | 17 | $1,994 | $117 |
| Anesthesia for lens surgery | 12 | $1,509 | $126 |
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 13 | $1,421 | $109 |
| Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance | 14 | $1,389 | $99 |
| Anesthesia for procedure on small and large bowel using an endoscope | 11 | $1,186 | $108 |
| Insertion of artery tube for blood sampling or infusion through skin | 11 | $407 | $37 |
| Ultrasonic guidance for blood vessel access | 11 | $128 | $12 |
2021: 1 service
| Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 13 | $1,570 | $121 |
2020: 1 service
| Anesthesia for lens surgery | 12 | $1,252 | $104 |
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 76.3 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1821452293
- Licence
- CA A156035California A156035: Current · expires 2028-02-29
- Gender
- Female
More record details
- Sole proprietor
- Yes
- Taxonomy
- Federal specialty code 207L00000X (207L00000X); Student in a training program (390200000X)
- Mailing address
- 300 Pasteur Dr, H3591, Stanford, CA, 94305
- NPI first listed
- 2016-04-11
- NPI last updated
- 2021-04-04
- NPI record certified
- 2021-04-04
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 300 Pasteur Dr, Stanford, CA, 94305