William Ming Cheng, MD
Internal Medicine · Palo Alto
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 1
- 1 carrier
- Offices
- 2
Offices
2 locations · Sutter Bay Medical Foundation · 3,783 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
1 plan · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Cheng’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
California Medical Board record
Licence A63979 · Current
Licensed to practise in California · since 1997 · expires 2027-04-30 · University of California, Los Angeles 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
$17,163
Medicare paid this office $17,163 for 109 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 98 | $15,457 | $155 |
Who their Medicare patients are
109 Original Medicare patients in 2024. Average age 82 · 85 and older 45% · Women 56% · Also on Medicaid 11% · Health risk score 1.91. Above the middle of the specialty; the typical internal medicine clinician is at 1.76.
Conditions among them: High blood pressure 75% · Coronary heart disease 45% · Chronic kidney disease 45% · Atrial fibrillation 39% · Heart failure 38% · Depression 38% · Cancer 34% · Dementia 32% · Diabetes 31% · COPD 26% · Stroke 12%.
The office billed $77,881, Medicare allowed $21,626 and paid $17,163; for 111 services of 6 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 | 109 | 111 | 82 | 1.91 | $77,881 | $17,163 |
| 2023 | 134 | 140 | 82 | 1.91 | $93,110 | $21,612 |
| 2022 | 161 | 418 | 82 | 2.23 | $162,141 | $43,699 |
| 2021 | 173 | 426 | 80 | 2.35 | $146,706 | $40,405 |
| 2020 | 149 | 395 | 80 | 2.09 | $122,105 | $38,457 |
| 2019 | 172 | 446 | 81 | 2.61 | $142,573 | $43,510 |
| 2018 | 138 | 381 | 80 | 2.08 | $114,802 | $34,897 |
| 2017 | 159 | 394 | 79 | 2.28 | $119,653 | $37,418 |
| 2016 | 136 | 356 | 80 | 2.34 | $107,965 | $34,224 |
| 2015 | 160 | 424 | 79 | 2.17 | $128,046 | $42,686 |
| 2014 | 136 | 353 | 80 | 2.47 | $113,564 | $34,652 |
| 2013 | 163 | 391 | 80 | 2.15 | $120,122 | $35,149 |
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: 2 services
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 102 | $17,033 | $161 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 20 | $2,421 | $121 |
2022: 7 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 67 | $16,964 | $96 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 50 | $9,714 | $183 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 46 | $5,991 | $67 |
| Hospital discharge day management, more than 30 minutes | 41 | $4,156 | $101 |
| Initial hospital observation care per day, typically 70 minutes | 11 | $1,842 | $167 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 13 | $1,643 | $126 |
| Initial hospital observation care per day, typically 50 minutes | 13 | $1,597 | $123 |
2021: 6 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 79 | $14,518 | $94 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 67 | $7,988 | $67 |
| Hospital discharge day management, more than 30 minutes | 58 | $5,773 | $98 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 30 | $5,601 | $187 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 13 | $1,630 | $125 |
| Hospital observation care on day of discharge | 20 | $1,294 | $65 |
2020: 5 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 62 | $12,947 | $100 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 70 | $8,507 | $69 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 33 | $6,139 | $186 |
| Hospital discharge day management, more than 30 minutes | 60 | $6,078 | $101 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 15 | $1,893 | $126 |
2019: 6 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 86 | $14,680 | $95 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 78 | $9,345 | $66 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 43 | $8,108 | $184 |
| Hospital discharge day management, more than 30 minutes | 53 | $5,574 | $100 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 21 | $2,609 | $124 |
| Hospital observation care on day of discharge | 13 | $882 | $68 |
2018: 6 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 61 | $11,934 | $92 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 66 | $8,041 | $64 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 29 | $5,458 | $182 |
| Hospital discharge day management, more than 30 minutes | 37 | $3,851 | $99 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 20 | $2,322 | $116 |
| Hospital observation care on day of discharge | 11 | $735 | $67 |
2017: 5 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 58 | $10,556 | $92 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 75 | $8,243 | $64 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 45 | $8,153 | $181 |
| Hospital discharge day management, more than 30 minutes | 56 | $5,352 | $96 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 15 | $1,831 | $122 |
2016: 5 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 55 | $10,833 | $93 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 36 | $6,489 | $180 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 54 | $6,366 | $64 |
| Hospital discharge day management, more than 30 minutes | 52 | $5,251 | $97 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 15 | $1,701 | $113 |
2015: 6 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 69 | $13,059 | $97 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 49 | $9,365 | $187 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 74 | $8,957 | $68 |
| Hospital discharge day management, more than 30 minutes | 44 | $4,607 | $102 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 21 | $2,688 | $128 |
| Initial hospital observation care per day, typically 50 minutes | 13 | $1,655 | $127 |
2014: 5 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 52 | $10,998 | $92 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 46 | $8,274 | $180 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 59 | $6,085 | $64 |
| Hospital discharge day management, more than 30 minutes | 49 | $4,827 | $97 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 13 | $1,477 | $114 |
2013: 6 services
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 61 | $10,772 | $90 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 67 | $7,465 | $62 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 33 | $5,686 | $172 |
| Hospital discharge day management, more than 30 minutes | 54 | $5,109 | $95 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 12 | $1,359 | $113 |
| Hospital observation care on day of discharge | 17 | $1,086 | $64 |
Professional record
- NPI
- 1134234156
- Licence
- CA A63979California A63979: Current · expires 2027-04-30
- Trained
- University of California, Geffen School of Medicine, 1996
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Internal medicine (207R00000X); Hospitalist (208M00000X)
- Mailing address
- 325 Distel Cir, Los Altos, CA, 94022
- NPI first listed
- 2006-08-20
- NPI last updated
- 2024-04-25
- NPI record certified
- 2024-04-25
This is when the NPI record was last certified, not a medical board exam.