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Eva Y Louie, NP

Nurse Practitioner · Fremont

NPI 1417183229

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Offices
6

Offices

6 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Looking this up.

Hospitals listed: Mills-Peninsula Medical Center. That is not proof they admit you there this week.

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Eva Y Louie’s office to ask if they take your plan before you enroll.

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.

  • Peninsula Medical CenterBurlingame, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Sutter Health, which runs 27 hospitals in 2 statesPatients rate it 4 of 5 · 78% would definitely recommend it
    Overall rating: 5 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.139, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.242, Oct 2024 – Sep 2025
See every measure and the patient survey for Peninsula Medical Center

Behind the star rating — Deaths: 2 better, 6 the same, 0 worse of 8 measures. Safety: 2 better, 5 the same, 0 worse of 7 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.

Every scored measure at Peninsula Medical Center
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.139BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.242BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.21 (0.27 to 2.15) · 1,258 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.81 (0.51 to 1.1)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths155.44 (112.67 to 198.21) · 90 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths2.5 · 32 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths7.1 · 82 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10 · 188 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths9 · 473 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths14.8 · 342 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths9.4 · 485 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.9 · 3,730 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.2 (0 to 0.4) · 6,904 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.21 (0.02 to 0.4) · 7,052 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths3.41 (1.43 to 5.39) · 1,695 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.72 (0.17 to 3.28) · 665 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.11 (0.66 to 3.56) · 1,545 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths7.1 (1.3 to 12.9) · 670 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.96 (2.63 to 9.29) · 653 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.61 (0.15 to 3.08) · 418 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.14 (0 to 0.78) · 5,539 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.7 · 192 casesNoneApr 2023 – Mar 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0.215No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.263No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.74No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.3 · 300 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits19 · 702 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits1.2 · 207 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-13.6 · 531 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits24.3 · 343 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits18.1 · 449 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits4.5 (2.8 to 7) · 85 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits9.6 (6.7 to 13.7) · 85 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.7 · 189 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits11 · 45 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits20.6 · 117 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits13 (9.7 to 17.2) · 584 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits0.9 (0.7 to 1.2) · 764 casesNo differentJan 2024 – Dec 2024

What patients said (523 patients answered, 27% of those asked)

Patient survey stars by topic at Peninsula Medical Center
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness3
Recommend hospital5
Share of patients giving the best answer at Peninsula Medical Center
Room was "always" clean76%
Nurses "always" communicated well81%
Doctors "always" communicated well80%
Staff "always" explained58%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge87%
Doctors "always" explained things so they could understand74%
Doctors "always" listened carefully79%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)75%
Staff "always" explained new medications72%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully79%
Nurses "always" treated them with courtesy and respect88%
"Always" quiet at night54%
"YES", patients would definitely recommend the hospital78%
Staff "always" explained possible side effects44%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$29,080

Medicare paid this office $29,080 for 113 people.

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

Largest Original Medicare bills
Return visit (30+ min)48$15,397$99
Short return visit (20+ min)54$6,104$66
Long return visit (40+ min)22$4,533$146

Who their Medicare patients are

113 Original Medicare patients in 2024. Average age 75 · Women 100% · Health risk score 1.51. Above the middle of the specialty; the typical nurse practitioner clinician is at 1.42.

Conditions among them: High blood pressure 67% · Cancer 52% · Diabetes 20% · Chronic kidney disease 19% · Depression 17% · Coronary heart disease 15% · Atrial fibrillation 15% · Stroke 11%.

The office billed $113,127, Medicare allowed $39,295 and paid $29,080; for 607 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
2024113607751.51$113,127$29,080
20231251,014741.51$136,579$37,579
2022119403741.28$132,333$38,664
2021116408741.76$127,499$39,006
2020105460731.91$127,287$34,919
2019120376721.61$116,514$30,636
201892314731.44$96,465$24,400
2017116315731.46$87,897$22,927
201684180721.87$52,272$13,079
201580183731.90$57,379$16,197
201474206721.73$50,537$13,744
201381240741.26$56,765$15,377

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: 3 services

Original Medicare services billed in 2023
Return visit (30+ min)58$16,331$100
Short return visit (20+ min)82$12,661$70
Long return visit (40+ min)40$7,857$135

2022: 3 services

Original Medicare services billed in 2022
Return visit (30+ min)54$15,362$100
Long return visit (40+ min)52$12,140$145
Short return visit (20+ min)70$10,905$70

2021: 3 services

Original Medicare services billed in 2021
Return visit (30+ min)60$17,561$105
Long return visit (40+ min)53$11,330$149
Short return visit (20+ min)63$9,507$68

2020: 5 services

Original Medicare services billed in 2020
Return visit (30+ min)59$14,535$86
Short return visit (20+ min)72$11,502$58
Long return visit (40+ min)39$5,802$118
Telephone medical discussion with physician, 21-30 minutes17$1,978$90
Telephone medical discussion with physician, 11-20 minutes12$999$62

2019: 3 services

Original Medicare services billed in 2019
Return visit (30+ min)60$13,717$88
Long return visit (40+ min)52$8,991$118
Short return visit (20+ min)68$7,680$57

2018: 3 services

Original Medicare services billed in 2018
Return visit (30+ min)40$11,716$83
Long return visit (40+ min)33$6,872$109
Short return visit (20+ min)63$5,682$54

2017: 3 services

Original Medicare services billed in 2017
Return visit (30+ min)40$10,508$83
Short return visit (20+ min)89$7,357$54
Long return visit (40+ min)30$4,372$115

2016: 3 services

Original Medicare services billed in 2016
Return visit (30+ min)34$5,540$84
Long return visit (40+ min)27$4,006$108
Short return visit (20+ min)52$2,882$46

2015: 3 services

Original Medicare services billed in 2015
Return visit (30+ min)35$6,906$85
Short return visit (20+ min)54$3,858$54
Long return visit (40+ min)15$2,534$115

2014: 3 services

Original Medicare services billed in 2014
Short return visit (20+ min)55$5,887$54
Return visit (30+ min)30$5,529$85
Long return visit (40+ min)15$1,700$113

2013: 3 services

Original Medicare services billed in 2013
Short return visit (20+ min)66$6,792$53
Return visit (30+ min)32$4,829$79
Long return visit (40+ min)20$2,372$113

Drugs they prescribed that Part D paid

$820,050

Pharmacies billed $820,050 in 2024.

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

Opioids were 13% of their Part D prescriptions (52 of 393) in 2024. A higher opioid share than 9 in 10 peers; the typical nurse practitioner clinician is at 0%.

322 generic and 71 brand-name prescriptions · $820,050 in drug cost · 25 antibiotic prescriptions to 16 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
Lynparza43$675,041$15,699
Eliquis18$10,430$579
Dexamethasone34$602$18
Letrozole11$402$37
Dexamethasone Sodium Phosphate14$309$22
See all 11 drugs
Every Part D drug this clinician prescribed
Lynparza43$675,041$15,699
Eliquis18$10,430$579
Dexamethasone34$602$18
Letrozole11$402$37
Dexamethasone Sodium Phosphate14$309$22
Prochlorperazine Maleate29$236$8
Oxycodone-Acetaminophen25$202$8
Lidocaine-Prilocaine15$142$9
Ondansetron36$136$4
Hydrocodone-Acetaminophen19$128$7
Lorazepam24$52$2

Year by year

Part D prescribing by year
202439311813% (52)18%$820,050
202351214417% (87)16%$1,100,326
202247312014% (67)15%$943,427
202143011816% (69)None$953,368
202050912815% (74)17%$556,399
201952516426% (134)16%$577,087
201853615428% (148)12%$178,216
201739610919% (77)12%$13,285
20162796524% (67)4%$5,442
20152327216% (36)None$5,684
201434011218% (61)None$12,116
201332711418% (60)27%$16,167

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

See the drugs prescribed each year

2023: 14 drugs

Part D drugs prescribed in 2023
Lynparza50$784,591$15,692
Eliquis13$7,531$579
Dexamethasone43$1,019$24
Letrozole22$681$31
Lidocaine-Prilocaine21$380$18
Oxycodone-Acetaminophen49$331$7
Prochlorperazine Maleate33$314$10
Ondansetron40$278$7
Nystatin16$218$14
Gabapentin17$167$10
Hydrocodone-Acetaminophen22$151$7
Lorazepam36$134$4
Pantoprazole12$41$3
Prednisone13$17$1

2022: 11 drugs

Part D drugs prescribed in 2022
Lynparza45$673,705$14,971
Dexamethasone50$1,060$21
Ondansetron41$511$12
Lidocaine-Prilocaine24$444$19
Nystatin22$377$17
Ondansetron Odt11$319$29
Prochlorperazine Maleate34$301$9
Oxycodone-Acetaminophen33$263$8
Gabapentin18$170$9
Lorazepam44$157$4
Hydrocodone-Acetaminophen21$157$7

2021: 12 drugs

Part D drugs prescribed in 2021
Lynparza47$691,421$14,711
Rubraca11$206,573$18,779
Dexamethasone22$408$19
Lidocaine-Prilocaine17$383$23
Gabapentin12$352$29
Ondansetron27$332$12
Oxycodone-Acetaminophen38$256$7
Omeprazole19$223$12
Lorazepam51$155$3
Hydrocodone-Acetaminophen18$154$9
Prochlorperazine Maleate20$139$7
Potassium Chloride13$61$5

2020: 12 drugs

Part D drugs prescribed in 2020
Lynparza27$286,609$10,615
Rubraca12$218,606$18,217
Xarelto11$5,072$461
Dexamethasone61$765$13
Ondansetron44$372$8
Lidocaine-Prilocaine20$370$19
Oxycodone-Acetaminophen41$367$9
Gabapentin18$362$20
Lorazepam69$289$4
Prochlorperazine Maleate28$250$9
Hydrocodone-Acetaminophen22$151$7
Omeprazole11$138$13

2019: 13 drugs

Part D drugs prescribed in 2019
Lynparza30$352,375$11,746
Rubraca12$205,056$17,088
Dexamethasone49$948$19
Megestrol Acetate14$776$55
Gabapentin21$760$36
Oxycodone-Acetaminophen96$711$7
Lidocaine-Prilocaine18$330$18
Ondansetron39$293$8
Hydrocodone-Acetaminophen24$273$11
Lorazepam55$189$3
Prochlorperazine Maleate31$186$6
Zolpidem16$128$8
Ondansetron Odt17$111$7

2018: 14 drugs

Part D drugs prescribed in 2018
Suprep18$1,690$94
Oxycodone-Acetaminophen80$858$11
Gabapentin22$823$37
Megestrol Acetate15$744$50
Lidocaine-Prilocaine22$483$22
Dexamethasone29$451$16
Lorazepam83$409$5
Hydrocodone-Acetaminophen56$405$7
Ondansetron33$348$11
Letrozole12$219$18
Nystatin13$174$13
Prochlorperazine Maleate26$143$5
Ciprofloxacin11$87$8
Ondansetron Odt11$67$6

2017: 12 drugs

Part D drugs prescribed in 2017
Suprep11$964$88
Megestrol Acetate12$486$40
Gabapentin15$407$27
Lorazepam69$390$6
Hydrocodone-Acetaminophen45$359$8
Lidocaine-Prilocaine14$356$25
Dexamethasone23$304$13
Zolpidem14$304$22
Oxycodone-Acetaminophen20$276$14
Ondansetron26$273$10
Letrozole21$254$12
Prochlorperazine Maleate21$153$7

2016: 8 drugs

Part D drugs prescribed in 2016
Hydrocodone-Acetaminophen41$778$19
Lorazepam63$511$8
Megestrol Acetate11$380$35
Ondansetron21$286$14
Letrozole25$259$10
Dexamethasone17$228$13
Prochlorperazine Maleate14$92$7
Tramadol12$74$6

2015: 7 drugs

Part D drugs prescribed in 2015
Suprep26$2,024$78
Megestrol Acetate16$475$30
Hydrocodone-Acetaminophen14$285$20
Ondansetron19$214$11
Lorazepam42$187$4
Dexamethasone18$172$10
Prochlorperazine Maleate12$60$5

2014: 9 drugs

Part D drugs prescribed in 2014
Suprep58$4,482$77
Megestrol Acetate31$920$30
Hydrocodone-Acetaminophen32$413$13
Ondansetron31$388$13
Gabapentin11$194$18
Dexamethasone18$155$9
Lorazepam39$153$4
Prochlorperazine Maleate17$92$5
Zolpidem11$69$6

2013: 9 drugs

Part D drugs prescribed in 2013
Suprep34$2,475$73
Moviprep34$2,398$71
Hydrocodone-Acetaminophen37$471$13
Megestrol Acetate14$403$29
Ondansetron18$334$19
Gabapentin15$273$18
Dexamethasone19$201$11
Lorazepam29$153$5
Metoclopramide16$56$3

Money from drug and device companies

$120 in 2025

Industry payments by year
202511None$120
202413None$140
202311None$22
202233None$318

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Payments by company
Myriad Genetic LaboratoriesPrecisetumor$120
1 payment
  • Meals for Precisetumor · 2025-04-29 · $120
See the published payment
Every published payment
Myriad Genetic LaboratoriesMeals · 2025-04-29Precisetumor$120
See earlier years (2024, 2023, 2022)

2024: $140

Payments by company in 2024
AstraZeneca Pharmaceuticals LPLynparza$140
2 payments
  • Meals for Lynparza · 2024-12-18 · $129
  • Meals for Lynparza · 2024-09-27 · $12

2023: $22

Payments by company in 2023
SeagenTivdak$22
1 payment
  • Meals for Tivdak · 2023-09-12 · $22

2022: $318

Payments by company in 2022
AstraZeneca Pharmaceuticals LPLynparza$124
1 payment
  • Meals for Lynparza · 2022-11-02 · $124
Myriad Genetic LaboratoriesMychoice Cdx$123
1 payment
  • Meals for Mychoice Cdx · 2022-07-19 · $123
GlaxoSmithKlineNone$71
1 payment
  • Meals · 2022-04-29 · $71

Professional record

NPI
1417183229
Licence
CA NP17750
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Nurse practitioner (363L00000X)
Mailing address
360 Dardanelli Ln, Suite 2d, Los Gatos, CA, 95032
NPI first listed
2009-06-08
NPI last updated
2009-06-08

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