Lily Nguyen
Obstetrics/Gynecology · San Jose
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 21
- 4 carriers
- Office
- 1
Offices
1 location · County of Santa Clara · 1,000 clinicians in this group
Looking this up.
Hospitals listed: Santa Clara Valley Medical Center. That is not proof they admit you there this week.
Plans that list them
21 plans · 4 carriers
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Lily Nguyen’s office at (408) 885-5000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
21 of 21 plans
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Silicon (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health smartHMO (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health the ONE (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Anthem Full Dual Advantage Aligned (HMO D-SNP) | Anthem Blue Cross | Listed | Oct 3, 2026 |
| Astiva Health C-SNP WOW - NorCal (HMO C-SNP) | Astiva Health | Listed | Sep 27, 2026 |
| Astiva Health Premier Plan - NorCal (HMO) | Astiva Health | Listed | Sep 27, 2026 |
| Astiva Health Savings Plan - NorCal (HMO) | Astiva Health | Listed | Sep 27, 2026 |
| Central Health Classic Care Plan III (HMO) | Central Health Medicare Plan | Listed | Aug 15, 2026 |
| Central Health Dual Access Plan (HMO D-SNP) | Central Health Medicare Plan | Listed | Aug 15, 2026 |
| Central Health Embrace Care Plan (HMO C-SNP) | Central Health Medicare Plan | Listed, may be out of date | Sep 15, 2025 |
| Central Health Embrace Choice Plan (HMO C-SNP) | Central Health Medicare Plan | Listed | Aug 15, 2026 |
| Central Health Valor Care Plan (HMO) | Central Health Medicare Plan | Listed | Aug 15, 2026 |
California Medical Board record
Licence G78516 · Current
Licensed to practise in California · since 1994 · expires 2028-01-31 · 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.
- 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 itOverall 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.
| SSI - Colon SurgeryInfections | 2.572 | Worse | Oct 2024 – Sep 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.563 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.256 | Better | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.369 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.25 (0.3 to 2.2) · 1,535 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 1.07 (0.76 to 1.38) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 214.59 (167.38 to 261.8) · 108 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 2.8 · 41 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 6 · 141 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 10.2 · 124 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 8.3 · 501 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 14.9 · 653 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 10.1 · 348 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3 · 4,502 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.24 (0.04 to 0.43) · 9,014 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.34 (0.15 to 0.52) · 9,216 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 4.54 (2.51 to 6.58) · 1,421 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.54 (0 to 3.2) · 288 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.11 (0.66 to 3.56) · 1,446 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 11.61 (4.09 to 19.14) · 294 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 7.29 (3.39 to 11.2) · 299 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.9 (0.45 to 3.36) · 333 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.23 (0 to 0.78) · 7,538 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 5.4 · 94 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.735 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 2.573 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 14.6 · 185 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 22.1 · 951 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 56.3 · 128 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 6.4 · 644 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 1.3 · 699 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 16.3 · 921 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 5.7 (3.9 to 8.1) · 226 cases | No different | Jan 2024 – Dec 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 12.6 (9.4 to 16.5) · 226 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.4 · 94 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 11.4 · 54 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 20.3 · 242 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 13.2 (9.9 to 17.4) · 702 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 1 (0.7 to 1.4) · 195 cases | No different | Jan 2024 – Dec 2024 |
What patients said (4,032 patients answered, 29% of those asked)
| Cleanliness | 3 |
| Nurse communication | 3 |
| Doctor communication | 3 |
| Communication about medicines | 3 |
| Discharge information | 2 |
| Overall hospital rating | 3 |
| Quietness | 2 |
| Recommend hospital | 4 |
| Room was "always" clean | 70% |
| Nurses "always" communicated well | 73% |
| Doctors "always" communicated well | 76% |
| Staff "always" explained | 57% |
| Yes, staff "did" give patients this information | 82% |
| Yes, staff "did" give patients information about help after discharge | 82% |
| Doctors "always" explained things so they could understand | 71% |
| Doctors "always" listened carefully | 74% |
| Doctors "always" treated them with courtesy and respect | 82% |
| Patients who gave a rating of "9" or "10" (high) | 67% |
| Staff "always" explained new medications | 71% |
| Nurses "always" explained things so they could understand | 71% |
| Nurses "always" listened carefully | 69% |
| Nurses "always" treated them with courtesy and respect | 80% |
| "Always" quiet at night | 43% |
| "YES", patients would definitely recommend the hospital | 70% |
| Staff "always" explained possible side effects | 44% |
| Yes, staff "did" give patients information about possible symptoms | 83% |
Medicaid work
$218,750 in 2024
Medicaid paid $218,750 for 4,162 billed services this clinician did in 2024, up to 72 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.
| Clinic visit/encounter, all-inclusive | 428 | $217,389 |
| Return visit (30+ min) | 106 | $865 |
| Short return visit (20+ min) | 408 | $402 |
| Infectious agent detection by nucleic acid (DNA or RNA); Human Papillomavirus (HPV), high-risk types (eg, 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 68), pooled result | 25 | $41 |
| Cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation; with screening by automated system and manual rescreening or review, under physician supervision | 57 | $31 |
| Short return visit | 23 | $24 |
| Subsequent prenatal care visit (Prenatal) [Excludes: patients who are seen for a condition unrelated to pregnancy or prenatal care (eg, an upper respiratory infection; patients seen for consultation only, not for continuing care)] | 47 | $0 |
| Pain severity quantified; no pain present (COA) (ONC) | 243 | $0 |
| Medication list documented in medical record (COA) | 692 | $0 |
| Review of all medications by a prescribing practitioner or clinical pharmacist (such as, prescriptions, OTCs, herbal therapies and supplements) documented in the medical record (COA) | 609 | $0 |
| Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD) | 693 | $0 |
| Most recent systolic blood pressure 130-139 mm Hg (DM) (HTN, CKD, CAD) | 53 | $0 |
| 2024 | 4,162 | 15 | 72 | $218,750 |
| 2023 | 1,868 | 12 | 63 | $267,489 |
| 2022 | 1,786 | 12 | 75 | $278,847 |
| 2021 | 1,502 | 9 | 55 | $259,613 |
| 2020 | 1,031 | 5 | 59 | $190,321 |
| 2019 | 1,203 | 7 | 78 | $247,051 |
| 2018 | 1,209 | 10 | 85 | $272,064 |
See the largest Medicaid services in earlier years
2023
| Clinic visit/encounter, all-inclusive | 542 | $265,397 |
| Short return visit (20+ min) | 564 | $891 |
| Return visit (30+ min) | 128 | $378 |
| FETAL NON-STRESS TEST | 38 | $355 |
| Ultrasound, pregnant uterus, real time with image documentation, limited (eg, fetal heart beat, placental location, fetal position and/or qualitative amniotic fluid volume), 1 or more fetuses | 15 | $340 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 17 | $80 |
| URINE PREGNANCY TEST | 110 | $32 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 41 | $17 |
| Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM) | 58 | $0 |
| Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD) | 179 | $0 |
| Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM) | 164 | $0 |
| Cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation; with screening by automated system and manual rescreening or review, under physician supervision | 12 | $0 |
2022
| Clinic visit/encounter, all-inclusive | 573 | $276,569 |
| Short return visit (20+ min) | 646 | $1,710 |
| Return visit (30+ min) | 178 | $415 |
| Short return visit | 35 | $66 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 18 | $60 |
| URINE PREGNANCY TEST | 67 | $27 |
| Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM) | 12 | $0 |
| Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD) | 115 | $0 |
| Most recent systolic blood pressure 130-139 mm Hg (DM) (HTN, CKD, CAD) | 13 | $0 |
| Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM) | 103 | $0 |
| Most recent diastolic blood pressure 80-89 mm Hg (HTN, CKD, CAD) (DM) | 13 | $0 |
| Cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation; with screening by automated system and manual rescreening or review, under physician supervision | 13 | $0 |
2021
| Clinic visit/encounter, all-inclusive | 549 | $258,802 |
| Short return visit (20+ min) | 415 | $557 |
| Return visit (30+ min) | 107 | $162 |
| Short return visit | 48 | $59 |
| URINE PREGNANCY TEST | 103 | $34 |
| Most recent hemoglobin A1c (HbA1c) level less than 7.0% (DM) | 46 | $0 |
| Most recent systolic blood pressure less than 130 mm Hg (DM) (HTN, CKD, CAD) | 109 | $0 |
| Most recent diastolic blood pressure less than 80 mm Hg (HTN, CKD, CAD) (DM) | 99 | $0 |
| Most recent diastolic blood pressure 80-89 mm Hg (HTN, CKD, CAD) (DM) | 26 | $0 |
2020
| Clinic visit/encounter, all-inclusive | 548 | $188,798 |
| Short return visit (20+ min) | 442 | $1,439 |
| Return visit (30+ min) | 14 | $41 |
| Short return visit | 14 | $39 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 13 | $5 |
2019
| Clinic visit/encounter, all-inclusive | 659 | $244,647 |
| Short return visit (20+ min) | 366 | $1,468 |
| Return visit (30+ min) | 111 | $602 |
| New patient visit (30+ min) | 13 | $159 |
| Infectious agent detection by nucleic acid (DNA or RNA); Chlamydia trachomatis, amplified probe technique | 12 | $72 |
| Infectious agent detection by nucleic acid (DNA or RNA); Neisseria gonorrhoeae, amplified probe technique | 12 | $72 |
| URINE PREGNANCY TEST | 30 | $30 |
2018
| Clinic visit/encounter, all-inclusive | 766 | $270,552 |
| Short return visit (20+ min) | 221 | $861 |
| Return visit (30+ min) | 76 | $288 |
| Influenza virus vaccine, quadrivalent (IIV4), split virus, preservative free, 0.5 mL dosage, for intramuscular use | 16 | $101 |
| Infectious agent detection by nucleic acid (DNA or RNA); Chlamydia trachomatis, amplified probe technique | 15 | $90 |
| Infectious agent detection by nucleic acid (DNA or RNA); Neisseria gonorrhoeae, amplified probe technique | 15 | $89 |
| Preventive medicine counseling and risk factor reduction intervention for individual, approximately 15 minutes | 13 | $36 |
| URINE PREGNANCY TEST | 30 | $17 |
| Cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation; with screening by automated system and manual rescreening or review, under physician supervision | 40 | $15 |
| Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections); 1 vaccine (single or combination vaccine/toxoid) | 17 | $14 |
Drugs they prescribed that Part D paid
$889
Pharmacies billed $889 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
Opioids were 0% of their Part D prescriptions (0 of 38) in 2024. Too few prescriptions to compare fairly with other clinicians.
21 generic and 17 brand-name prescriptions · $889 in drug cost.
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.
| Medroxyprogesterone Acetate | 13 | $68 | $5 |
Year by year
| 2024 | 38 | 12 | 0% (0) | 45% | $889 |
| 2023 | 35 | None | 0% (0) | 34% | $1,152 |
| 2022 | 36 | 11 | 0% (0) | 42% | $1,482 |
| 2021 | 49 | None | 0% (0) | 33% | $5,442 |
| 2020 | 65 | 24 | 0% (0) | 23% | $9,559 |
| 2019 | 78 | 26 | 0% (0) | 17% | $8,915 |
| 2018 | 72 | 24 | 0% (0) | 32% | $7,300 |
| 2017 | 108 | 30 | 0% (0) | 23% | $6,659 |
| 2016 | 107 | 34 | None | 26% | $7,517 |
| 2015 | 107 | 27 | 0% (0) | 22% | $5,474 |
| 2014 | 57 | 19 | 0% (0) | None | $2,417 |
| 2013 | 38 | 17 | None | None | $1,471 |
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
| Medroxyprogesterone Acetate | 11 | $56 | $5 |
2022: 2 drugs
| Estradiol (Once Weekly) | 11 | $679 | $62 |
| Medroxyprogesterone Acetate | 13 | $74 | $6 |
2020: 1 drug
| Alendronate | 14 | $174 | $12 |
2019: 2 drugs
| Estradiol | 24 | $3,033 | $126 |
| Alendronate | 23 | $291 | $13 |
2018: 2 drugs
| Alendronate | 26 | $286 | $11 |
| Medroxyprogesterone Acetate | 15 | $82 | $5 |
2017: 3 drugs
| Estradiol | 11 | $621 | $56 |
| Alendronate | 39 | $310 | $8 |
| Medroxyprogesterone Acetate | 14 | $90 | $6 |
2016: 2 drugs
| Premarin | 12 | $3,505 | $292 |
| Alendronate | 41 | $296 | $7 |
2015: 4 drugs
| Premarin | 12 | $3,238 | $270 |
| Estradiol | 13 | $734 | $56 |
| Alendronate | 51 | $354 | $7 |
| Medroxyprogesterone Acetate | 11 | $59 | $5 |
2014: 1 drug
| Alendronate | 29 | $401 | $14 |
Money from drug and device companies
$170 in 2025
| 2025 | 1 | 1 | None | $170 |
| 2024 | 2 | 2 | None | $44 |
| 2023 | 1 | 1 | None | $20 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Stryker | Infinity | $170 | 1 payment
|
See the published payment
| Stryker | Meals · 2025-03-29 | Infinity | $170 |
See earlier years (2024, 2023)
2024: $44
| Daiichi Sankyo | Injectafer | $27 | 1 payment
|
| Baxter Healthcare | Hillrom - Centrella Smart+ Bed | $17 | 1 payment
|
2023: $20
| Baxter Healthcare | Perclot | $20 | 1 payment
|
Checkups this office reported
Medicare did not publish checkup rates for this clinician.
- Medicare’s overall office score
- 80.6 / 100
- Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.
Professional record
- NPI
- 1285720342
- Licence
- CA G78516California G78516: Current · expires 2028-01-31
- Gender
- Female
More record details
- Sole proprietor
- No
- Medicaid ID
- CA 00G785160
- Taxonomy
- Federal specialty code 207V00000X (207V00000X)
- Mailing address
- 39260 Canyon Heights Dr, Fremont, CA, 94539
- NPI first listed
- 2006-10-05
- NPI last updated
- 2007-07-09
This is when the NPI record was last certified, not a medical board exam.