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Charles Eli Liao, MD

Internal Medicine · Stanford

NPI 1891001079

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
1
1 carrier
Offices
2
Since medical school
17 years
University of California, San Francisco School of Medicine, 2009

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

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. Liao’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

Plans whose provider directory lists this clinician
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A113343 · Current

Licensed to practise in California · since 2010 · expires 2028-01-31 · University of California San Francisco 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

$84,301

Medicare paid this office $84,301 for 264 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 minutes186$51,099$105
Initial hospital care with moderate level of medical decision making at least 75 minutes125$18,955$148
Hospital discharge day management, 30 minutes or less70$4,978$70
Hospital discharge day management, more than 30 minutes38$3,973$105
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes33$3,534$71

Who their Medicare patients are

264 Original Medicare patients in 2024. Average age 75 · Under 65 15% · 85 and older 22% · Women 57% · Also on Medicaid 45% · Health risk score 3.03. Sicker patients than 9 in 10 peers; the typical internal medicine clinician is at 1.76.

Conditions among them: High blood pressure 75% · Chronic kidney disease 53% · Heart failure 47% · Coronary heart disease 46% · Atrial fibrillation 44% · Diabetes 43% · Depression 38% · Dementia 34% · COPD 29% · Stroke 23% · Cancer 19%.

The office billed $425,392, Medicare allowed $107,871 and paid $84,301; for 798 services of 12 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
2024264798753.03$425,392$84,301
2023250974763.08$432,585$108,895
2022232763743.29$352,393$79,831
2021277848742.68$379,772$91,570
2020190594753.18$269,018$66,894
2019235900733.35$377,833$94,432
2018258817743.35$332,490$84,127
2017271884732.90$340,407$89,121
2016267941733.06$331,172$87,582
2015246847712.98$292,821$78,977
20143001,112732.79$376,524$103,091
2013267839732.34$305,265$80,110

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

Original Medicare services billed in 2023
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes192$70,866$109
Initial hospital care with moderate level of medical decision making at least 75 minutes146$23,792$157
Hospital discharge day management, 30 minutes or less108$8,597$76
Hospital discharge day management, more than 30 minutes34$3,641$107
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes11$1,605$73

2022: 8 services

Original Medicare services billed in 2022
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes160$40,654$94
Initial hospital care with moderate level of medical decision making at least 75 minutes115$21,055$180
Hospital discharge day management, 30 minutes or less86$5,893$67
Initial hospital observation care per day, typically 70 minutes20$3,414$171
Hospital discharge day management, more than 30 minutes24$2,357$98
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes14$1,366$65
Extended inpatient or observation hospital service, first hour11$1,336$84
Hospital observation care on day of discharge17$1,194$70

2021: 9 services

Original Medicare services billed in 2021
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes177$40,978$95
Initial hospital care with moderate level of medical decision making at least 75 minutes132$24,855$185
Hospital discharge day management, 30 minutes or less105$7,130$67
Initial hospital observation care per day, typically 70 minutes37$6,514$176
Hospital discharge day management, more than 30 minutes32$3,183$96
Hospital observation care on day of discharge32$2,306$72
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes24$1,992$66
Follow-up observation care per day, typically 35 minutes11$1,313$101
Extended inpatient or observation hospital service, first hour11$1,110$85

2020: 6 services

Original Medicare services billed in 2020
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes112$27,798$98
Initial hospital care with moderate level of medical decision making at least 75 minutes102$21,158$198
Hospital discharge day management, 30 minutes or less77$5,703$71
Hospital discharge day management, more than 30 minutes26$2,800$104
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes21$2,560$67
Extended inpatient or observation hospital service, first hour20$2,495$89

2019: 9 services

Original Medicare services billed in 2019
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes124$41,694$94
Initial hospital care with moderate level of medical decision making at least 75 minutes127$24,164$183
Hospital discharge day management, 30 minutes or less70$5,044$66
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes50$4,951$66
Initial hospital observation care per day, typically 70 minutes26$4,380$168
Hospital discharge day management, more than 30 minutes44$4,363$99
Extended inpatient or observation hospital service, first hour28$4,061$85
Initial hospital care with same-day admission and discharge with high level of medical decision making, per day at least 85 minutes13$2,569$198
Hospital observation care on day of discharge24$1,621$68

2018: 7 services

Original Medicare services billed in 2018
Initial hospital care with moderate level of medical decision making at least 75 minutes147$27,567$180
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes124$24,154$94
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes94$11,113$65
Hospital discharge day management, 30 minutes or less113$7,889$67
Initial hospital observation care per day, typically 70 minutes28$4,639$166
Hospital discharge day management, more than 30 minutes21$2,074$99
Hospital observation care on day of discharge24$1,605$67

2017: 7 services

Original Medicare services billed in 2017
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes141$30,411$93
Initial hospital care with moderate level of medical decision making at least 75 minutes137$25,924$181
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes85$10,750$64
Hospital discharge day management, 30 minutes or less103$6,905$66
Initial hospital observation care per day, typically 70 minutes26$4,332$167
Hospital discharge day management, more than 30 minutes42$4,124$98
Hospital observation care on day of discharge26$1,725$66

2016: 8 services

Original Medicare services billed in 2016
Initial hospital care with moderate level of medical decision making at least 75 minutes132$23,858$178
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes140$22,441$64
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes103$18,628$92
Hospital discharge day management, 30 minutes or less117$7,889$66
Initial hospital observation care per day, typically 70 minutes22$3,635$165
Initial hospital care with same-day admission and discharge with high level of medical decision making, per day at least 85 minutes13$2,518$194
Hospital discharge day management, more than 30 minutes18$1,750$97
Hospital observation care on day of discharge26$1,712$66

2015: 7 services

Original Medicare services billed in 2015
Initial hospital care with moderate level of medical decision making at least 75 minutes130$24,311$177
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes140$21,020$64
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes104$15,779$93
Hospital discharge day management, 30 minutes or less113$7,791$65
Initial hospital observation care per day, typically 70 minutes15$2,376$158
Hospital discharge day management, more than 30 minutes21$1,976$94
Hospital observation care on day of discharge18$1,187$66

2014: 7 services

Original Medicare services billed in 2014
Initial hospital care with moderate level of medical decision making at least 75 minutes171$31,401$178
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes161$28,694$64
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes123$21,349$92
Hospital discharge day management, 30 minutes or less132$8,920$65
Initial hospital observation care per day, typically 70 minutes20$3,289$164
Hospital discharge day management, more than 30 minutes18$1,834$97
Hospital observation care on day of discharge24$1,566$65

2013: 7 services

Original Medicare services billed in 2013
Initial hospital care with moderate level of medical decision making at least 75 minutes159$28,921$174
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes131$17,960$62
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes111$17,565$90
Hospital discharge day management, 30 minutes or less100$6,657$64
Initial hospital observation care per day, typically 70 minutes14$2,248$161
Hospital discharge day management, more than 30 minutes17$1,808$95
Hospital observation care on day of discharge11$702$64

Medicaid work

$16,896 in 2024

Medicaid paid $16,896 for 484 billed services this clinician did in 2024, up to 28 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 MINUTES374$10,899
1ST HOSP IP/OBS HIGH 7582$5,356
Hospital inpatient or observation discharge day management; 30 minutes or less on the date of the encounter28$642
Medicaid work by year
2024484328$16,896
2023774332$22,783
2022522333$17,294
2021679326$27,210
2020303217$14,349
2019203316$7,924
2018182420$6,776
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES542$14,840
1ST HOSP IP/OBS HIGH 75160$6,397
Hospital inpatient or observation discharge day management; 30 minutes or less on the date of the encounter72$1,547

2022

Largest Medicaid services in 2022
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES405$12,809
1ST HOSP IP/OBS HIGH 7569$3,491
Hospital inpatient or observation discharge day management; 30 minutes or less on the date of the encounter48$994

2021

Largest Medicaid services in 2021
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES467$15,742
1ST HOSP IP/OBS HIGH 75148$9,541
Hospital inpatient or observation discharge day management; 30 minutes or less on the date of the encounter64$1,927

2020

Largest Medicaid services in 2020
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES243$10,411
1ST HOSP IP/OBS HIGH 7560$3,937

2019

Largest Medicaid services in 2019
1ST HOSP IP/OBS HIGH 7578$3,886
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES113$3,628
Hospital inpatient or observation discharge day management; 30 minutes or less on the date of the encounter12$410

2018

Largest Medicaid services in 2018
1ST HOSP IP/OBS HIGH 7562$3,221
SBSQ HOSPITAL IP/OBS CARE MOD MDM 35 MINUTES69$2,168
Hospital inpatient or observation discharge day management; 30 minutes or less on the date of the encounter29$774
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES22$613

Drugs they prescribed that Part D paid

$19,683

Pharmacies billed $19,683 in 2024.

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

173 generic and fewer than 11 brand-name prescriptions · $19,683 in drug cost · 26 antibiotic prescriptions to 22 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
Pantoprazole14$271$19
Atorvastatin14$118$8

Year by year

Part D prescribing by year
202421577NoneNone$19,683
202328480NoneNone$34,003
2022118440% (0)None$14,893
202115471None15%$25,518
202020174NoneNone$22,032
2019304994% (11)None$31,092
2018373122NoneNone$47,033
20173161036% (18)None$32,166
20162881055% (15)None$48,887
201522185NoneNone$16,027
2014259108NoneNone$32,271
2013194778% (15)None$9,632

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
Pantoprazole23$353$15

2021: 1 drug

Part D drugs prescribed in 2021
Pantoprazole11$170$15

2020: 1 drug

Part D drugs prescribed in 2020
Amlodipine Besylate12$100$8

2019: 3 drugs

Part D drugs prescribed in 2019
Clinisol17$3,702$218
Famotidine29$309$11
Pantoprazole12$118$10

2018: 5 drugs

Part D drugs prescribed in 2018
Eliquis17$8,499$500
Sulfamethoxazole-Trimethoprim16$796$50
Gabapentin15$742$49
Pantoprazole24$164$7
Prednisone14$104$7

2017: 3 drugs

Part D drugs prescribed in 2017
Eliquis18$6,187$344
Polyethylene Glycol 335016$1,115$70
Prednisone17$104$6

2016: 1 drug

Part D drugs prescribed in 2016
Furosemide14$41$3

2015: 3 drugs

Part D drugs prescribed in 2015
Furosemide16$155$10
Prednisone15$85$6
Gabapentin11$72$7

2014: 1 drug

Part D drugs prescribed in 2014
Ciprofloxacin11$58$5

2013: 2 drugs

Part D drugs prescribed in 2013
Gabapentin11$350$32
Pantoprazole11$268$24

Professional record

NPI
1891001079
Licence
CA A113343California A113343: Current · expires 2028-01-31
Trained
University of California, San Francisco School of Medicine, 2009 · 17 years ago
Gender
Male
More record details
Sole proprietor
Yes
Taxonomy
Internal medicine (207R00000X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2010-08-25
NPI last updated
2024-04-19
NPI record certified
2024-04-19

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