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Sun-Yin E Chan, MD

Plastic and Reconstructive Surgery · San Jose

NPI 1275636227

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
27
8 carriers
Office
1
Since medical school
49 years
University of Chicago, Pritzker School of Medicine, 1977

Offices

1 location

Looking this up.

Hospitals listed: Santa Clara Valley Medical Center. That is not proof they admit you there this week.

Plans that list them

27 plans · 8 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chan’s office at (408) 278-1180 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

27 of 27 plans

Plans whose provider directory lists this clinician
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Silicon (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health smartHMO (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health the ONE (HMO)Alignment Health PlanListedOct 3, 2026
Anthem Full Dual Advantage Aligned (HMO D-SNP)Anthem Blue CrossListedOct 3, 2026
Anthem Medicare Advantage (HMO-POS)Anthem Blue CrossListedOct 3, 2026
Anthem Prime (HMO-POS)Anthem Blue Cross Partnership PlanListedOct 3, 2026
Astiva Health C-SNP WOW - NorCal (HMO C-SNP)Astiva HealthListedSep 27, 2026
Astiva Health Premier Plan - NorCal (HMO)Astiva HealthListedSep 27, 2026
Astiva Health Savings Plan - NorCal (HMO)Astiva HealthListedSep 27, 2026
Blue Shield Inspire (HMO)Blue Shield of CaliforniaListedAug 26, 2026
Imperial Courage Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Dynamic Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Senior Value (HMO C-SNP)Imperial Health Plan of California, Inc.ListedSep 1, 2026
SCAN Balance (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
SCAN Classic (HMO)SCAN Health PlanListedOct 3, 2026
SCAN MyChoice (HMO)SCAN Health PlanListedOct 3, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence G59752 · Current

Licensed to practise in California · since 1987 · expires 2027-01-31 · University of Chicago, Pritzker 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.

  • Santa Clara Valley Medical CenterSan Jose, CAAcute Care Hospital · Government - Local · Has an emergency department · Birthing-friendlyPart of Santa Clara Valley Health and Hospital System, which runs 3 hospitalsPatients rate it 3 of 5 · 70% would definitely recommend it
    Overall rating: 2 of 5 starsWorse than the national rate — SSI - Colon Surgery: 2.572, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.563, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.256, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.369, Oct 2024 – Sep 2025
See every measure and the patient survey for Santa Clara Valley Medical Center

Behind the star rating — Deaths: 2 better, 6 the same, 0 worse of 8 measures. Safety: 2 better, 5 the same, 1 worse of 8 measures. Readmissions: 0 better, 10 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 Santa Clara Valley Medical Center
SSI - Colon SurgeryInfections2.572WorseOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.563BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.256BetterOct 2024 – Sep 2025
MRSA BacteremiaInfections0.369BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.25 (0.3 to 2.2) · 1,535 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.07 (0.76 to 1.38)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths214.59 (167.38 to 261.8) · 108 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths2.8 · 41 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths6 · 141 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10.2 · 124 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths8.3 · 501 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths14.9 · 653 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths10.1 · 348 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths3 · 4,502 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.24 (0.04 to 0.43) · 9,014 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.34 (0.15 to 0.52) · 9,216 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths4.54 (2.51 to 6.58) · 1,421 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.54 (0 to 3.2) · 288 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.11 (0.66 to 3.56) · 1,446 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths11.61 (4.09 to 19.14) · 294 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths7.29 (3.39 to 11.2) · 299 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.9 (0.45 to 3.36) · 333 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.23 (0 to 0.78) · 7,538 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths5.4 · 94 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.735No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections2.573No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.6 · 185 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits22.1 · 951 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits56.3 · 128 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits6.4 · 644 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits1.3 · 699 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.3 · 921 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.7 (3.9 to 8.1) · 226 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits12.6 (9.4 to 16.5) · 226 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.4 · 94 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits11.4 · 54 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20.3 · 242 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13.2 (9.9 to 17.4) · 702 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits1 (0.7 to 1.4) · 195 casesNo differentJan 2024 – Dec 2024

What patients said (4,032 patients answered, 29% of those asked)

Patient survey stars by topic at Santa Clara Valley Medical Center
Cleanliness3
Nurse communication3
Doctor communication3
Communication about medicines3
Discharge information2
Overall hospital rating3
Quietness2
Recommend hospital4
Share of patients giving the best answer at Santa Clara Valley Medical Center
Room was "always" clean70%
Nurses "always" communicated well73%
Doctors "always" communicated well76%
Staff "always" explained57%
Yes, staff "did" give patients this information82%
Yes, staff "did" give patients information about help after discharge82%
Doctors "always" explained things so they could understand71%
Doctors "always" listened carefully74%
Doctors "always" treated them with courtesy and respect82%
Patients who gave a rating of "9" or "10" (high)67%
Staff "always" explained new medications71%
Nurses "always" explained things so they could understand71%
Nurses "always" listened carefully69%
Nurses "always" treated them with courtesy and respect80%
"Always" quiet at night43%
"YES", patients would definitely recommend the hospital70%
Staff "always" explained possible side effects44%
Yes, staff "did" give patients information about possible symptoms83%

Original Medicare doctor bills

$36,123

Medicare paid this office $36,123 for 88 people.

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

Largest Original Medicare bills
Short return visit (20+ min)64$11,699$88
New patient visit (30+ min)39$4,168$107
New patient visit (45+ min)15$2,371$158
Short return visit18$1,786$54

Procedures Medicare counted

Procedure volume Medicare published
Coronary artery bypass graft (CABG)1-10None
Mastectomy1-10None
Melanoma (skin cancer) excision1-10None
Pacemaker insertion or repair1-10None
Removal of nail tissue1-10None
Removal of tissue13More than 64% of doctors who do this

Procedures year by year

Procedures billed to Original Medicare by year
Procedure201920202021202220232024
Injection into tendon or ligament21––2219–

Times billed to Original Medicare each year. A blank year means fewer than 11 people had it, or none: Medicare does not publish smaller counts. Medicare Advantage patients are not included.

Who their Medicare patients are

88 Original Medicare patients in 2024. Average age 75 · Women 51% · Also on Medicaid 33% · Health risk score 1.35. Above the middle of the specialty; the typical plastic and reconstructive surgery clinician is at 1.21.

Conditions among them: High blood pressure 75% · Diabetes 36% · Coronary heart disease 30% · Chronic kidney disease 27% · Atrial fibrillation 16% · COPD 15% · Heart failure 13% · Cancer 13%.

The office billed $96,685, Medicare allowed $45,409 and paid $36,123; for 294 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
202488294751.35$96,685$36,123
202378257761.40$86,495$32,532
202289278771.30$97,275$33,858
202166191732.09$64,385$25,433
202064186751.65$54,185$17,227
2019149511751.97$151,820$53,947
2018124463741.89$144,550$47,720
2017105451751.38$134,570$46,205
2016113398751.44$119,810$40,749
2015104294721.54$92,015$33,270
2014129401721.25$124,520$46,387
2013153495721.40$133,295$52,531

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: 4 services

Original Medicare services billed in 2023
Short return visit (20+ min)53$10,347$87
New patient visit (30+ min)38$3,958$104
Short return visit15$1,222$56
Injection into tendon or ligament15$1,063$56

2022: 4 services

Original Medicare services billed in 2022
Short return visit (20+ min)46$7,463$85
New patient visit (30+ min)42$4,457$106
Short return visit24$2,047$55
Injection into tendon or ligament16$1,227$56

2021: 3 services

Original Medicare services billed in 2021
Short return visit (20+ min)31$5,172$89
New patient visit (30+ min)29$3,160$109
Short return visit16$1,455$56

2020: 4 services

Original Medicare services billed in 2020
Short return visit (20+ min)36$5,091$70
New patient visit (30+ min)19$1,974$104
Short return visit17$939$41
Emergency department visit with low level of medical decision making11$630$57

2019: 6 services

Original Medicare services billed in 2019
Short return visit (20+ min)71$12,217$70
New patient visit (30+ min)59$5,906$100
Short return visit42$3,235$43
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes18$2,277$65
Emergency department visit with low level of medical decision making29$1,559$52
Injection into tendon or ligament16$1,041$50

2018: 5 services

Original Medicare services billed in 2018
Short return visit (20+ min)59$7,996$64
New patient visit (30+ min)61$6,155$101
Short return visit42$4,859$42
Injection into tendon or ligament20$1,216$47
Emergency department visit with low level of medical decision making14$718$51

2017: 4 services

Original Medicare services billed in 2017
Short return visit (20+ min)47$8,344$67
New patient visit (30+ min)52$5,270$101
Short return visit46$3,691$39
Injection into tendon or ligament16$931$49

2016: 4 services

Original Medicare services billed in 2016
Short return visit (20+ min)63$8,235$66
New patient visit (30+ min)64$6,252$98
Short return visit46$3,955$39
Injection into tendon or ligament14$922$54

2015: 3 services

Original Medicare services billed in 2015
Short return visit (20+ min)46$5,702$68
New patient visit (30+ min)50$5,009$100
Short return visit35$2,536$41

2014: 5 services

Original Medicare services billed in 2014
Short return visit (20+ min)69$8,603$68
New patient visit (30+ min)59$5,871$100
Short return visit45$3,056$41
Injection into tendon or ligament12$931$55
Emergency department visit with low level of medical decision making13$689$53

2013: 5 services

Original Medicare services billed in 2013
Short return visit (20+ min)85$12,308$68
New patient visit (30+ min)82$8,094$99
Short return visit52$3,358$41
Injection into tendon or ligament27$1,682$54
Emergency department visit with low level of medical decision making11$565$51

Medicaid work

$0 in 2024

Medicaid paid $0 for 12 billed services this clinician did in 2024, up to 12 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.

Largest Medicaid services in 2024
Short return visit (20+ min)12$0
Medicaid work by year
202412112$0
202366115$100
202113112$0
201930115$0
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Short return visit (20+ min)66$100

2021

Largest Medicaid services in 2021
Short return visit (20+ min)13$0

2019

Largest Medicaid services in 2019
Short return visit (20+ min)30$0

Drugs they prescribed that Part D paid

$5,093

Pharmacies billed $5,093 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 49% of their Part D prescriptions (33 of 67) in 2024. Above the middle of the specialty; the typical plastic and reconstructive surgery clinician is at 28%. Surgeons prescribe little besides pain medicine after an operation, so their opioid share runs high.

56 generic and 11 brand-name prescriptions · $5,093 in drug cost · 15 antibiotic prescriptions to 12 people.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Largest Part D drug costs
Hydrocodone-Acetaminophen19$94$5
Acetaminophen-Codeine11$88$7

Year by year

Part D prescribing by year
2024674149% (33)16%$5,093
2023492757% (28)None$331
2022272259% (16)None$289
2021231857% (13)None$107
20201611NoneNone$105
2019362256% (20)0%$221
2018483156% (27)0%$367
2017382150% (19)None$245
2016331955% (18)None$236
2015422152% (22)None$338
2014311952% (16)0%$473
2013261850% (13)0%$300

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 1 drug

Part D drugs prescribed in 2023
Acetaminophen-Codeine22$100$5

2019: 1 drug

Part D drugs prescribed in 2019
Acetaminophen-Codeine14$76$5

2018: 1 drug

Part D drugs prescribed in 2018
Hydrocodone-Acetaminophen22$157$7

2017: 1 drug

Part D drugs prescribed in 2017
Hydrocodone-Acetaminophen17$75$4

2016: 1 drug

Part D drugs prescribed in 2016
Hydrocodone-Acetaminophen13$113$9

2015: 1 drug

Part D drugs prescribed in 2015
Hydrocodone-Acetaminophen18$150$8

2014: 1 drug

Part D drugs prescribed in 2014
Hydrocodone-Acetaminophen14$143$10

2013: 1 drug

Part D drugs prescribed in 2013
Hydrocodone-Acetaminophen13$107$8

Money from drug and device companies

$119 in 2019

A payment is not proof that care is biased.

Payments by company
Smith+NephewSantyl$119
1 payment
  • Meals for Santyl · 2019-08-28 · $119
See the published payment
Every published payment
Smith+NephewMeals · 2019-08-28Santyl$119

Professional record

NPI
1275636227
Licence
CA G59752California G59752: Current · expires 2027-01-31
Trained
University of Chicago, Pritzker School of Medicine, 1977 · 49 years ago
Gender
Male
More record details
Sole proprietor
Yes
Taxonomy
Federal specialty code 174400000X (174400000X)
Mailing address
2060 Forest Ave Ste 100, San Jose, CA, 95128
NPI first listed
2006-09-06
NPI last updated
2007-07-09

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