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Lydia Ann Wong, MD

Family Practice · Stanford

NPI 1356672398

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
13
2 carriers
Office
1
Since medical school
10 years
Ohio State University College of Medicine, 2016

Offices

1 location · 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

13 plans · 2 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Wong’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

13 of 13 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
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A151707 · Current

Licensed to practise in California · since 2017 · expires 2027-09-30 · Ohio State University College 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 Family Medicine - Family Medicine

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

$11,133

Medicare paid this office $11,133 for 141 people.

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

Largest Original Medicare bills
Short return visit (20+ min)77$4,663$54
Return visit (30+ min)51$3,393$54
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit42$2,607$62

Who their Medicare patients are

141 Original Medicare patients in 2024. Average age 74 · Under 65 8% · 85 and older 11% · Women 71% · Also on Medicaid 14% · Health risk score 0.90. At or below the middle of the specialty; the typical family practice clinician is at 1.13.

Conditions among them: High blood pressure 58% · Diabetes 33% · Coronary heart disease 18% · Cancer 16% · Depression 14% · Chronic kidney disease 13% · Atrial fibrillation 10%.

The office billed $86,798, Medicare allowed $17,078 and paid $11,133; for 198 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

Original Medicare by year
2024141198740.90$86,798$11,133
2023210356740.94$147,864$20,431
2022121180731.01$80,585$10,354
2021140249731.02$96,523$16,065
2020135221721.28$52,897$9,811
20196273751.21$4,484$3,157

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
Short return visit (20+ min)112$6,834$49
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit78$5,928$76
Return visit (30+ min)75$5,702$55
Short return visit15$645$43
New patient visit (30+ min)11$548$50

2022: 4 services

Original Medicare services billed in 2022
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit61$4,298$70
Short return visit (20+ min)49$3,089$48
Return visit (30+ min)22$1,305$50
Short return visit11$569$44

2021: 6 services

Original Medicare services billed in 2021
Short return visit (20+ min)74$5,291$52
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit50$3,900$78
Return visit (30+ min)29$2,120$59
Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit12$1,510$126
New patient visit (30+ min)14$948$68
Short return visit11$355$32

2020: 5 services

Original Medicare services billed in 2020
Short return visit (20+ min)104$4,985$33
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit18$2,547$141
New patient visit (30+ min)14$928$66
Telephone medical discussion with physician, 11-20 minutes11$523$40
Telephone medical discussion with physician, 5-10 minutes11$271$23

2019: 1 service

Original Medicare services billed in 2019
Short return visit (20+ min)61$3,089$43

Drugs they prescribed that Part D paid

$102,115

Pharmacies billed $102,115 in 2024.

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

936 generic and 142 brand-name prescriptions · $102,115 in drug cost · 18 antibiotic prescriptions to 13 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
Jardiance28$24,179$864
Eliquis13$9,260$712
Rosuvastatin49$1,127$23
Gabapentin21$1,116$53
Synthroid14$916$65
See all 26 drugs
Every Part D drug this clinician prescribed
Jardiance28$24,179$864
Eliquis13$9,260$712
Rosuvastatin49$1,127$23
Gabapentin21$1,116$53
Synthroid14$916$65
Losartan66$837$13
Baclofen12$805$67
Metoprolol38$713$19
Atorvastatin98$648$7
Amlodipine Besylate72$564$8
Escitalopram22$415$19
Levothyroxine55$357$6
Tamsulosin23$339$15
Potassium Chloride19$292$15
Lisinopril39$252$6
Pantoprazole20$243$12
Finasteride16$223$14
Famotidine13$192$15
Metformin Hcl Er23$179$8
Omeprazole12$152$13
Furosemide24$130$5
Alendronate15$127$8
Trazodone13$69$5
Sertraline23$67$3
Atenolol11$55$5
Metformin18$26$1

Year by year

Part D prescribing by year
20241,078164None13%$102,115
20231,2821861% (14)None$134,321
2022845162NoneNone$59,286
20219371672% (14)None$55,373
20201,173159None11%$71,062
2019389126NoneNone$24,554
2018253550% (0)15%$20,645
201738140% (0)None$2,436
201516None0% (0)None$626

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

See the drugs prescribed each year

2023: 33 drugs

Part D drugs prescribed in 2023
Jardiance27$21,630$801
Xarelto11$6,751$614
Myrbetriq12$5,795$483
Doxepin11$3,055$278
Ventolin Hfa19$3,050$161
Gabapentin16$1,542$96
Losartan82$1,487$18
Atorvastatin124$1,274$10
Baclofen11$1,188$108
Amlodipine Besylate67$926$14
Levothyroxine64$800$12
Rosuvastatin31$756$24
Tamsulosin24$711$30
Metformin30$702$23
Lisinopril38$652$17
Albuterol Sulfate Hfa11$516$47
Metoprolol21$506$24
Pantoprazole19$440$23
Omeprazole29$416$14
Diclofenac13$384$30
Escitalopram15$370$25
Alendronate22$352$16
Finasteride13$347$27
Potassium Chloride21$327$16
Metformin Hcl Er27$290$11
Hydrocodone-Acetaminophen13$264$20
Sertraline16$211$13
Fluticasone Propionate16$177$11
Ezetimibe13$164$13
Clonazepam18$150$8
Furosemide23$140$6
Atenolol18$65$4
Triamcinolone Acetonide12$49$4

2022: 18 drugs

Part D drugs prescribed in 2022
Gabapentin29$2,379$82
Atorvastatin91$1,073$12
Levothyroxine38$769$20
Losartan53$715$13
Omeprazole28$642$23
Pantoprazole12$577$48
Rosuvastatin25$439$18
Metformin Hcl Er32$396$12
Potassium Chloride12$352$29
Amlodipine Besylate35$336$10
Metformin35$304$9
Lisinopril37$301$8
Atenolol23$234$10
Trazodone11$165$15
Fluticasone Propionate13$148$11
Metoprolol14$143$10
Furosemide15$134$9
Sertraline13$100$8

2021: 22 drugs

Part D drugs prescribed in 2021
Eliquis14$7,428$531
Atorvastatin99$1,446$15
Gabapentin20$793$40
Levothyroxine43$749$17
Lisinopril61$569$9
Rosuvastatin21$498$24
Metformin Hcl Er39$463$12
Amlodipine Besylate48$417$9
Omeprazole25$401$16
Metformin43$397$9
Losartan30$337$11
Fluticasone Propionate26$312$12
Cyclobenzaprine12$290$24
Ezetimibe13$289$22
Sertraline14$230$16
Clopidogrel13$159$12
Clonazepam14$159$11
Atenolol12$133$11
Metoprolol11$122$11
Alendronate12$91$8
Furosemide16$72$5
Hydrochlorothiazide13$52$4

2020: 23 drugs

Part D drugs prescribed in 2020
Eliquis22$13,915$632
Atorvastatin167$2,426$15
Levothyroxine57$1,554$27
Gabapentin23$1,458$63
Rosuvastatin39$1,347$35
Synthroid15$1,261$84
Losartan55$1,068$19
Metformin70$591$8
Omeprazole31$588$19
Lisinopril81$564$7
Pantoprazole16$549$34
Diclofenac17$484$28
Metformin Hcl Er38$424$11
Azelastine14$385$27
Metoprolol18$343$19
Atenolol24$336$14
Amlodipine Besylate43$249$6
Clopidogrel13$197$15
Fluticasone Propionate12$162$14
Spironolactone11$154$14
Hydrochlorothiazide25$115$5
Alendronate12$109$9
Cyclobenzaprine12$60$5

2019: 6 drugs

Part D drugs prescribed in 2019
Ventolin Hfa11$849$77
Atorvastatin37$664$18
Losartan20$201$10
Lisinopril24$156$6
Amlodipine Besylate19$123$6
Metformin16$114$7

2018: 4 drugs

Part D drugs prescribed in 2018
Digox11$900$82
Atorvastatin14$314$22
Losartan11$51$5
Furosemide11$45$4

Professional record

NPI
1356672398
Licence
CA A151707California A151707: Current · expires 2027-09-30
Trained
Ohio State University College of Medicine, 2016 · 10 years ago
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Family medicine (207Q00000X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2010-01-14
NPI last updated
2024-04-12
NPI record certified
2024-04-12

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