James Chang, MD
Plastic and Reconstructive Surgery · Redwood City
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 2
- 2 carriers
- Offices
- 3
Offices
3 locations · Stanford Health Care · 3,152 clinicians in this group
Looking this up.
Hospitals listed: Stanford Health Care. That is not proof they admit you there this week.
Plans that list them
2 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 (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
2 of 2 plans
| SCAN Strive (HMO C-SNP) | SCAN Health Plan | Listed | Oct 3, 2026 |
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
California Medical Board record
Licence G80137 · Current
Licensed to practise in California · since 1994 · expires 2028-07-31 · Yale University 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.
- Stanford Health CareStanford, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency departmentPart of Stanford Health Care, which runs 3 hospitalsHome of Stanford Cancer Institute, a National Cancer Institute designated comprehensive cancer centrePatients rate it 4 of 5 · 83% would definitely recommend itOverall rating: 5 of 5 starsWorse than the national rate — Perioperative pulmonary embolism or deep vein thrombosis rate: 5.31 (4.24 to 6.37) · 8,661 cases, Jul 2022 – Jun 2024Worse than the national rate — Rate of inpatient admissions for patients receiving outpatient chemotherapy: 14.1 (12.7 to 15.7) · 2,191 cases, Jan 2024 – Dec 2024Better than the national rate — Postoperative respiratory failure rate: 4.08 (1.95 to 6.21) · 5,296 cases, Jul 2022 – Jun 2024Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.317, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.446, Oct 2024 – Sep 2025Better than the national rate — SSI - Colon Surgery: 0.241, Oct 2024 – Sep 2025Better than the national rate — Ratio of unplanned hospital visits after hospital outpatient surgery: 0.7 (0.6 to 0.9) · 3,348 cases, Jan 2024 – Dec 2024
See every measure and the patient survey for Stanford Health Care
Behind the star rating — Deaths: 5 better, 3 the same, 0 worse of 8 measures. Safety: 3 better, 5 the same, 0 worse of 8 measures. Readmissions: 2 better, 5 the same, 4 worse of 11 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 5.31 (4.24 to 6.37) · 8,661 cases | Worse | Jul 2022 – Jun 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 14.1 (12.7 to 15.7) · 2,191 cases | Worse | Jan 2024 – Dec 2024 |
| Postoperative respiratory failure rateComplications and deaths | 4.08 (1.95 to 6.21) · 5,296 cases | Better | Jul 2022 – Jun 2024 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.317 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.446 | Better | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.241 | Better | Oct 2024 – Sep 2025 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.7 (0.6 to 0.9) · 3,348 cases | Better | Jan 2024 – Dec 2024 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.06 (0.45 to 1.67) · 5,374 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.86 (0.72 to 1) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 166.09 (137.88 to 194.3) · 470 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.1 · 192 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 6.4 · 146 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 9.7 · 253 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 6.3 · 880 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 10.3 · 935 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 8.7 · 501 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 2.1 · 7,730 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.13 (0 to 0.27) · 20,799 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.28 (0.14 to 0.43) · 23,182 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 0.94 (0.2 to 1.68) · 5,694 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.36 (1.54 to 3.19) · 7,846 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.2 (3.76 to 6.64) · 5,603 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.38 (0.23 to 2.53) · 2,211 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.52 (0.21 to 0.83) · 19,915 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 3.6 · 416 cases | None | Apr 2023 – Mar 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.869 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.857 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.368 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 16.2 · 247 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20.5 · 1,021 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 47.8 · 258 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -1.6 · 990 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 20.8 · 976 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 16.5 · 959 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 5.2 (4.4 to 6.2) · 2,191 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.1 · 425 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 9.6 · 158 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.6 · 183 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.7 (10.4 to 15.4) · 4,578 cases | No different | Jan 2022 – Dec 2024 |
What patients said (6,810 patients answered, 25% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 5 |
| Room was "always" clean | 75% |
| Nurses "always" communicated well | 82% |
| Doctors "always" communicated well | 81% |
| Staff "always" explained | 63% |
| Yes, staff "did" give patients this information | 89% |
| Yes, staff "did" give patients information about help after discharge | 89% |
| Doctors "always" explained things so they could understand | 76% |
| Doctors "always" listened carefully | 80% |
| Doctors "always" treated them with courtesy and respect | 87% |
| Patients who gave a rating of "9" or "10" (high) | 79% |
| Staff "always" explained new medications | 76% |
| Nurses "always" explained things so they could understand | 77% |
| Nurses "always" listened carefully | 79% |
| Nurses "always" treated them with courtesy and respect | 88% |
| "Always" quiet at night | 53% |
| "YES", patients would definitely recommend the hospital | 83% |
| Staff "always" explained possible side effects | 50% |
| Yes, staff "did" give patients information about possible symptoms | 90% |
Original Medicare doctor bills
$51,649
Medicare paid this office $51,649 for 73 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| New patient visit (45+ min) | 19 | $2,037 | $107 |
| Short return visit (20+ min) | 16 | $1,233 | $65 |
| Return visit (30+ min) | 12 | $995 | $83 |
Procedures Medicare counted
| Removal of nail tissue | 1-10 | None |
| Removal of tissue | 1-10 | None |
Who their Medicare patients are
73 Original Medicare patients in 2024. Average age 74 · Women 57% · Health risk score 1.37. Above the middle of the specialty; the typical plastic and reconstructive surgery clinician is at 1.21.
Conditions among them: High blood pressure 49% · Depression 21% · Diabetes 19% · Atrial fibrillation 19% · Coronary heart disease 16% · Chronic kidney disease 15% · Cancer 15%.
The office billed $416,051, Medicare allowed $65,655 and paid $51,649; for 182 services of 41 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 | 73 | 182 | 74 | 1.37 | $416,051 | $51,649 |
| 2023 | 54 | 115 | 73 | 1.26 | $221,424 | $32,357 |
| 2022 | 64 | 129 | 71 | 0.95 | $258,860 | $32,584 |
| 2021 | 46 | 93 | 71 | 1.43 | $183,390 | $25,825 |
| 2020 | 73 | 174 | 70 | 1.17 | $355,993 | $48,933 |
| 2019 | 65 | 147 | 71 | 1.07 | $302,630 | $37,401 |
| 2018 | 38 | 73 | 71 | 1.10 | $123,962 | $16,813 |
| 2017 | 66 | 141 | 71 | 1.11 | $263,817 | $32,137 |
| 2016 | 50 | 124 | 70 | 0.88 | $264,169 | $33,858 |
| 2015 | 52 | 124 | 70 | 0.99 | $229,319 | $29,165 |
| 2014 | 50 | 97 | 69 | 0.92 | $128,929 | $17,801 |
| 2013 | 59 | 136 | 70 | 1.00 | $212,827 | $27,078 |
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
| New patient visit (45+ min) | 17 | $1,932 | $114 |
| Return visit (30+ min) | 17 | $1,385 | $81 |
| Short return visit (20+ min) | 13 | $780 | $60 |
2022: 3 services
| New patient visit (45+ min) | 15 | $1,626 | $108 |
| Return visit (30+ min) | 14 | $1,239 | $83 |
| New patient visit (30+ min) | 12 | $522 | $43 |
2021: 1 service
| Return visit (30+ min) | 11 | $997 | $91 |
2020: 2 services
| New patient visit (30+ min) | 15 | $899 | $60 |
| Short return visit (20+ min) | 17 | $851 | $43 |
2019: 2 services
| New patient visit (15+ min) | 21 | $699 | $33 |
| Short return visit | 22 | $524 | $24 |
2017: 4 services
| New patient visit (30+ min) | 13 | $743 | $57 |
| Short return visit (20+ min) | 17 | $726 | $40 |
| New patient visit (15+ min) | 13 | $586 | $45 |
| Short return visit | 12 | $271 | $21 |
2016: 2 services
| New patient visit (30+ min) | 17 | $1,074 | $63 |
| Short return visit (20+ min) | 11 | $547 | $42 |
2015: 2 services
| New patient visit (30+ min) | 17 | $1,155 | $68 |
| Short return visit (20+ min) | 15 | $729 | $43 |
2014: 3 services
| New patient visit (30+ min) | 13 | $879 | $68 |
| Short return visit (20+ min) | 13 | $592 | $46 |
| Short return visit | 17 | $330 | $18 |
2013: 3 services
| New patient visit (30+ min) | 23 | $1,414 | $61 |
| Short return visit (20+ min) | 13 | $483 | $32 |
| Short return visit | 13 | $301 | $22 |
Money from drug and device companies
$63 in 2025
| 2025 | 1 | 1 | None | $63 |
| 2024 | 3 | 3 | None | $245 |
| 2023 | 1 | 1 | None | $20 |
| 2021 | 4 | 4 | None | $317 |
| 2020 | 4 | 6 | $300 | $1,140 |
| 2019 | 4 | 5 | None | $570 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Acumed | Innate Implant | $63 | 1 payment
|
See the published payment
| Acumed | Meals · 2025-07-23 | Innate Implant | $63 |
See earlier years (2024, 2023, 2021, 2020, 2019)
2024: $245
| Alafair Biosciences | Versawrap | $121 | 1 payment
|
| Acumed | Arcphix System | $79 | 1 payment
|
| Ethicon US | Stratafix | $45 | 1 payment
|
2023: $20
| Alafair Biosciences | Versawrap | $20 | 1 payment
|
2021: $317
| Axogen | Avance Nerve Graft | $104 | 1 payment
|
| TriMed | None | $94 | 1 payment
|
| Acumed | Osteotomy System | $78 | 1 payment
|
| Stryker | Spy-Phi System | $41 | 1 payment
|
2020: $1,140
| Musculoskeletal Transplant Foundation | None | $418 | 1 payment
|
| Acumed | Acu-Loc Wrist Plating System | $302 | 3 payments
|
| Intuitive Surgical | Da Vinci Surgical System | $300 | 1 payment
|
| Integra LifeSciences | Bilayer Wound Matrix (Bwm) | $120 | 1 payment
|
2019: $570
| Acumed | Acu-Loc Wrist Plating System | $223 | 2 payments
|
| Axogen | Axoguard Nerve Connector | $128 | 1 payment
|
| Bioventus | Exogen | $122 | 1 payment
|
| Stryker | 1588 Hd 3 Chip Camera | $97 | 1 payment
|
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 76.5 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1447269626
- Licence
- CA G80137California G80137: Current · expires 2028-07-31
- Trained
- Yale University School of Medicine, 1993
- Group
- Stanford Health Care
- Video visits
- Lists video visits
- Gender
- Male
More record details
- Sole proprietor
- Yes
- Taxonomy
- Federal specialty code 208200000X (208200000X); Federal specialty code 2082S0105X (2082S0105X)
- Mailing address
- 300 Pasteur Dr, Palo Alto, CA, 94304
- NPI first listed
- 2006-08-05
- NPI last updated
- 2024-04-29
- NPI record certified
- 2024-04-29
This is when the NPI record was last certified, not a medical board exam.