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Xiao Yan Wang, MD

Internal Medicine · Stanford

NPI 1134515638

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
16
2 carriers
Offices
2
Since medical school
11 years
Yale University School of Medicine, 2015

Offices

2 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

16 plans · 2 carriers

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

16 of 16 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
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

California Medical Board record

Licence A144661 · Current

Licensed to practise in California · since 2016 · expires 2028-06-30 · Yale University School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

School, training and certification

What this clinician told their state board, medical school and everything before it. Only some states publish this, so nothing here means the state does not say, not that there was no training or certification.

Specialty certification

  • American Board of Internal Medicine - Internal Medicine

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.

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 it
    Overall 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.

Every scored measure at Stanford Health Care
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths5.31 (4.24 to 6.37) · 8,661 casesWorseJul 2022 – Jun 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits14.1 (12.7 to 15.7) · 2,191 casesWorseJan 2024 – Dec 2024
Postoperative respiratory failure rateComplications and deaths4.08 (1.95 to 6.21) · 5,296 casesBetterJul 2022 – Jun 2024
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.317BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.446BetterOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.241BetterOct 2024 – Sep 2025
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.7 (0.6 to 0.9) · 3,348 casesBetterJan 2024 – Dec 2024
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.06 (0.45 to 1.67) · 5,374 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.86 (0.72 to 1)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths166.09 (137.88 to 194.3) · 470 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.1 · 192 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths6.4 · 146 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths9.7 · 253 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths6.3 · 880 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths10.3 · 935 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths8.7 · 501 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.1 · 7,730 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.13 (0 to 0.27) · 20,799 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.28 (0.14 to 0.43) · 23,182 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths0.94 (0.2 to 1.68) · 5,694 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.36 (1.54 to 3.19) · 7,846 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.2 (3.76 to 6.64) · 5,603 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.38 (0.23 to 2.53) · 2,211 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.52 (0.21 to 0.83) · 19,915 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.6 · 416 casesNoneApr 2023 – Mar 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.869No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.857No differentOct 2024 – Sep 2025
SSI - Abdominal HysterectomyInfections0.368No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits16.2 · 247 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits20.5 · 1,021 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits47.8 · 258 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-1.6 · 990 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits20.8 · 976 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.5 · 959 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.2 (4.4 to 6.2) · 2,191 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.1 · 425 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits9.6 · 158 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.6 · 183 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits12.7 (10.4 to 15.4) · 4,578 casesNo differentJan 2022 – Dec 2024

What patients said (6,810 patients answered, 25% of those asked)

Patient survey stars by topic at Stanford Health Care
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness2
Recommend hospital5
Share of patients giving the best answer at Stanford Health Care
Room was "always" clean75%
Nurses "always" communicated well82%
Doctors "always" communicated well81%
Staff "always" explained63%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge89%
Doctors "always" explained things so they could understand76%
Doctors "always" listened carefully80%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)79%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully79%
Nurses "always" treated them with courtesy and respect88%
"Always" quiet at night53%
"YES", patients would definitely recommend the hospital83%
Staff "always" explained possible side effects50%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$46,314

Medicare paid this office $46,314 for 137 people.

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

Largest Original Medicare bills
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes90$28,064$105
Initial hospital care with moderate level of medical decision making at least 75 minutes46$6,948$148
Hospital discharge day management, more than 30 minutes36$3,745$104
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes30$2,931$68
Hospital discharge day management, 30 minutes or less13$965$74
See all 6 services
Every Original Medicare service billed
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes90$28,064$105
Initial hospital care with moderate level of medical decision making at least 75 minutes46$6,948$148
Hospital discharge day management, more than 30 minutes36$3,745$104
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes30$2,931$68
Hospital discharge day management, 30 minutes or less13$965$74
Advance care planning, first 30 minutes12$953$68

Who their Medicare patients are

137 Original Medicare patients in 2024. Average age 76 · Under 65 14% · 85 and older 28% · Women 48% · Also on Medicaid 42% · Health risk score 2.92. Above the middle of the specialty; the typical internal medicine clinician is at 1.76.

Conditions among them: High blood pressure 75% · Chronic kidney disease 50% · Heart failure 47% · Coronary heart disease 46% · Diabetes 41% · Depression 41% · Dementia 41% · Atrial fibrillation 39% · COPD 34% · Stroke 24% · Cancer 23%.

The office billed $201,617, Medicare allowed $59,209 and paid $46,314; for 447 services of 15 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
2024137447762.92$201,617$46,314
2023197592753.22$270,140$64,451
2022237848753.00$359,711$84,833
2021162549742.93$224,677$54,373
2020258838722.84$401,104$84,624
2019153464752.82$210,769$48,325
20182773742.26$28,984$7,687

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

Original Medicare services billed in 2023
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes137$34,959$109
Initial hospital care with moderate level of medical decision making at least 75 minutes73$11,904$159
Hospital discharge day management, more than 30 minutes75$7,966$106
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes33$3,358$71
Hospital discharge day management, 30 minutes or less22$1,670$76
Advance care planning, first 30 minutes14$1,051$70

2022: 10 services

Original Medicare services billed in 2022
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes137$41,653$94
Initial hospital care with moderate level of medical decision making at least 75 minutes83$15,228$179
Hospital discharge day management, more than 30 minutes66$6,682$98
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes39$4,801$65
Initial hospital care with same-day admission and discharge with high level of medical decision making, per day at least 85 minutes14$3,298$194
Initial hospital observation care per day, typically 70 minutes18$2,984$166
Hospital discharge day management, 30 minutes or less34$2,205$65
Hospital observation care on day of discharge23$1,602$70
Advance care planning, first 30 minutes15$1,427$71
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes11$1,385$126

2021: 5 services

Original Medicare services billed in 2021
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes98$25,533$95
Initial hospital care with moderate level of medical decision making at least 75 minutes64$11,996$185
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes46$5,660$67
Hospital discharge day management, more than 30 minutes44$4,230$96
Hospital discharge day management, 30 minutes or less39$2,447$63

2020: 9 services

Original Medicare services billed in 2020
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes137$34,457$95
Initial hospital care with moderate level of medical decision making at least 75 minutes89$17,268$188
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes77$8,232$66
Hospital discharge day management, more than 30 minutes63$6,459$99
Hospital discharge day management, 30 minutes or less59$4,387$70
Initial hospital care with straightforward or low-level medical decision making at least 55 minutes33$4,371$129
Initial hospital care with same-day admission and discharge with high level of medical decision making, per day at least 85 minutes13$2,826$202
Extended inpatient or observation hospital service, first hour12$1,113$86
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes20$1,080$35

2019: 7 services

Original Medicare services billed in 2019
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes87$22,496$92
Initial hospital care with moderate level of medical decision making at least 75 minutes64$11,576$181
Hospital discharge day management, more than 30 minutes52$5,081$96
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes20$2,017$65
Initial hospital observation care per day, typically 70 minutes11$1,826$166
Hospital discharge day management, 30 minutes or less13$880$63
Hospital observation care on day of discharge11$732$67

2018: 2 services

Original Medicare services billed in 2018
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes20$3,745$94
Hospital discharge day management, more than 30 minutes11$1,185$99

Medicaid work

$8,683 in 2024

Medicaid paid $8,683 for 252 billed services this clinician did in 2024, up to 26 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
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES238$7,996
1ST HOSP IP/OBS HIGH 7514$688
Medicaid work by year
2024252226$8,683
2023194218$5,544
2022495324$14,858
2021270221$6,784
2020274418$11,978
2019147314$5,098
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES181$5,079
1ST HOSP IP/OBS HIGH 7513$464

2022

Largest Medicaid services in 2022
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES448$12,773
1ST HOSP IP/OBS HIGH 7530$1,547
Hospital inpatient or observation discharge day management; more than 30 minutes on the date of the encounter17$537

2021

Largest Medicaid services in 2021
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES237$6,190
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES33$594

2020

Largest Medicaid services in 2020
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES201$9,241
1ST HOSP IP/OBS HIGH 7520$1,574
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES37$696
Hospital inpatient or observation discharge day management; 30 minutes or less on the date of the encounter16$466

2019

Largest Medicaid services in 2019
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES122$3,885
Hospital inpatient or observation discharge day management; more than 30 minutes on the date of the encounter12$614
1ST HOSP IP/OBS HIGH 7513$599

Drugs they prescribed that Part D paid

$11,765

Pharmacies billed $11,765 in 2024.

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

115 generic and fewer than 11 brand-name prescriptions · $11,765 in drug cost · 28 antibiotic prescriptions to 14 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.

Year by year

Part D prescribing by year
202413446NoneNone$11,765
2023190756% (11)None$21,037
202214359NoneNone$32,068
2021104390% (0)None$29,217
202023986NoneNone$28,424
201915052NoneNone$17,208
20182712NoneNone$2,373

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
Atorvastatin15$104$7

2022: 1 drug

Part D drugs prescribed in 2022
Eliquis14$8,991$642

2020: 1 drug

Part D drugs prescribed in 2020
Pantoprazole16$237$15

2019: 1 drug

Part D drugs prescribed in 2019
Eliquis19$8,564$451

Money from drug and device companies

$22 in 2024

A payment is not proof that care is biased.

Payments by company
Tandem Diabetes CareT:Slim X2 Insulin Pump With Control-Iq$22
1 payment
  • Meals for T:Slim X2 Insulin Pump With Control-Iq · 2024-05-29 · $22
See the published payment
Every published payment
Tandem Diabetes CareMeals · 2024-05-29T:Slim X2 Insulin Pump With Control-Iq$22

Professional record

NPI
1134515638
Licence
CA A144661California A144661: Current · expires 2028-06-30
Trained
Yale University School of Medicine, 2015 · 11 years ago
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Internal medicine (207R00000X)
Mailing address
300 Pasteur Dr, Stanford Medicine Residency Office, Lane 154, Stanford, CA, 94305
NPI first listed
2015-04-10
NPI last updated
2024-04-24
NPI record certified
2024-04-24

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