Katy Leamarie Cowden, NP
Nurse Practitioner · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- Not verified
- Not the same as out of network.
- Office
- 1
- Since medical school
- 10 years
- Graduated 2016
Offices
1 location · Stanford Health Care · 3,152 clinicians in this group
Looking this up.
Hospitals listed: Stanford Health Care Tri-Valley. 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 Katy Leamarie Cowden’s office at (650) 723-4000 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.
- Stanford Health Care Tri-ValleyPleasanton, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Stanford Health Care, which runs 3 hospitalsPatients rate it 3 of 5 · 74% would definitely recommend itOverall rating: 5 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.178, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.237, Oct 2024 – Sep 2025
See every measure and the patient survey for Stanford Health Care Tri-Valley
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: 2 better, 7 the same, 0 worse of 9 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.178 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.237 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 0.79 (0 to 1.73) · 1,041 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.79 (0.5 to 1.08) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 145.81 (96.5 to 195.12) · 72 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 2.9 · 55 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 8.6 · 92 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 12.5 · 96 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 9.5 · 395 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 10.3 · 391 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 10.1 · 162 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 3 · 1,736 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.16 (0 to 0.37) · 4,425 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.22 (0.02 to 0.41) · 4,771 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.45 (1.46 to 5.44) · 1,403 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.5 (0.05 to 2.94) · 645 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 1.81 (0.38 to 3.24) · 1,279 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 8.53 (3.2 to 13.85) · 639 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.15 (1.89 to 8.41) · 648 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.61 (0.14 to 3.07) · 370 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.16 (0 to 0.83) · 4,160 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 4 · 74 cases | None | Apr 2023 – Mar 2025 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.369 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 1.112 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 13.1 · 110 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20.1 · 437 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | -5.8 · 94 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -19.3 · 456 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | -0.3 · 402 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 15.8 · 358 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 6.8 (4.7 to 9.6) · 198 cases | No different | Jan 2024 – Dec 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 10.1 (7.5 to 13.6) · 198 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.3 · 80 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 10.9 · 46 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.3 · 92 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.4 (9.6 to 16.2) · 1,532 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 1 (0.8 to 1.2) · 929 cases | No different | Jan 2024 – Dec 2024 |
What patients said (1,268 patients answered, 26% of those asked)
| Cleanliness | 3 |
| Nurse communication | 3 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 3 |
| Quietness | 2 |
| Recommend hospital | 4 |
| Room was "always" clean | 65% |
| Nurses "always" communicated well | 77% |
| Doctors "always" communicated well | 79% |
| Staff "always" explained | 58% |
| Yes, staff "did" give patients this information | 88% |
| Yes, staff "did" give patients information about help after discharge | 88% |
| Doctors "always" explained things so they could understand | 74% |
| Doctors "always" listened carefully | 78% |
| Doctors "always" treated them with courtesy and respect | 86% |
| Patients who gave a rating of "9" or "10" (high) | 70% |
| Staff "always" explained new medications | 72% |
| Nurses "always" explained things so they could understand | 73% |
| Nurses "always" listened carefully | 74% |
| Nurses "always" treated them with courtesy and respect | 84% |
| "Always" quiet at night | 42% |
| "YES", patients would definitely recommend the hospital | 74% |
| Staff "always" explained possible side effects | 44% |
| Yes, staff "did" give patients information about possible symptoms | 89% |
Original Medicare doctor bills
$39,990
Medicare paid this office $39,990 for 300 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Initial hospital care with same-day admission and discharge with straightforward or low level of medical decision making, per day at least 45 minutes | 167 | $17,890 | $71 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes | 74 | $6,619 | $37 |
| Initial hospital care with straightforward or low level of medical decision making, per day at least 40 minutes | 72 | $4,969 | $61 |
| Initial hospital care with straightforward or low-level medical decision making at least 55 minutes | 44 | $4,778 | $98 |
| Short return visit (20+ min) | 13 | $1,262 | $74 |
Who their Medicare patients are
300 Original Medicare patients in 2024. Average age 76 · Under 65 6% · 85 and older 15% · Women 53% · Also on Medicaid 28% · Health risk score 2.62. Above the middle of the specialty; the typical nurse practitioner clinician is at 1.42.
Conditions among them: High blood pressure 75% · Chronic kidney disease 54% · Cancer 41% · Diabetes 40% · Coronary heart disease 38% · Heart failure 34% · Depression 32% · Atrial fibrillation 30% · COPD 24% · Dementia 21% · Stroke 17%.
The office billed $269,983, Medicare allowed $50,735 and paid $39,990; for 628 services of 16 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 | 300 | 628 | 76 | 2.62 | $269,983 | $39,990 |
| 2023 | 90 | 112 | 71 | 1.66 | $29,863 | $6,095 |
| 2022 | 89 | 108 | 70 | 0.76 | $17,395 | $5,104 |
| 2021 | 63 | 69 | 68 | 0.84 | $14,830 | $3,179 |
| 2020 | 84 | 106 | 69 | 1.07 | $27,606 | $5,197 |
| 2019 | 144 | 301 | 69 | 1.10 | $53,867 | $10,149 |
| 2018 | 105 | 185 | 70 | 0.86 | $31,775 | $6,536 |
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: 1 service
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | 36 | $1,435 | $40 |
2022: 3 services
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | 57 | $2,249 | $39 |
| Short return visit (20+ min) | 19 | $1,164 | $61 |
| Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 11 | $501 | $46 |
2021: 1 service
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | 45 | $1,811 | $40 |
2020: 3 services
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | 45 | $1,835 | $41 |
| Short return visit (20+ min) | 22 | $1,185 | $44 |
| New patient visit (30+ min) | 14 | $1,148 | $82 |
2019: 4 services
| Short return visit (20+ min) | 55 | $3,288 | $51 |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | 68 | $2,653 | $39 |
| New patient visit (30+ min) | 19 | $1,315 | $69 |
| Short return visit | 11 | $330 | $28 |
2018: 3 services
| Short return visit (20+ min) | 40 | $2,182 | $47 |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | 40 | $1,527 | $38 |
| New patient visit (30+ min) | 17 | $1,317 | $77 |
Drugs they prescribed that Part D paid
$1,074
Pharmacies billed $1,074 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
$1,074 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.
Year by year
| 2024 | 11 | None | None | None | $1,074 |
| 2023 | 151 | 61 | 0% (0) | None | $25,761 |
| 2022 | 147 | 62 | 0% (0) | 31% | $21,023 |
| 2021 | 93 | 40 | 0% (0) | 26% | $16,442 |
| 2020 | 186 | 68 | 0% (0) | 13% | $22,461 |
| 2019 | 186 | 76 | 0% (0) | 19% | $21,496 |
| 2018 | 99 | 58 | 0% (0) | 21% | $9,535 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2023: 2 drugs
| Estradiol | 48 | $4,894 | $102 |
| Estradiol (Twice Weekly) | 12 | $1,915 | $160 |
2022: 2 drugs
| Premarin | 16 | $6,935 | $433 |
| Estradiol | 31 | $2,980 | $96 |
2021: 2 drugs
| Premarin | 18 | $7,144 | $397 |
| Estradiol | 21 | $3,420 | $163 |
2020: 5 drugs
| Premarin | 12 | $4,165 | $347 |
| Estradiol | 27 | $3,983 | $148 |
| Yuvafem | 16 | $3,524 | $220 |
| Clobetasol Propionate | 14 | $551 | $39 |
| Fluconazole | 20 | $157 | $8 |
2019: 4 drugs
| Premarin | 12 | $4,874 | $406 |
| Estradiol | 27 | $3,863 | $143 |
| Clobetasol Propionate | 25 | $623 | $25 |
| Fluconazole | 25 | $116 | $5 |
2018: 2 drugs
| Estradiol | 11 | $822 | $75 |
| Fluconazole | 15 | $80 | $5 |
Money from drug and device companies
$14 in 2021
A payment is not proof that care is biased.
| AbbVie | Oriahnn | $14 | 1 payment
|
See the published payment
| AbbVie | Meals · 2021-02-16 | Oriahnn | $14 |
Professional record
- NPI
- 1770094427
- Licence
- CA 95007649, CA 95007659
- Group
- Stanford Health Care
- Video visits
- Lists video visits
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Nurse practitioner (363L00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2017-10-21
- NPI last updated
- 2025-10-16
- NPI record certified
- 2025-10-16
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 4725 1st St Ste 100, Pleasanton, CA, 94566 · 5575 W Las Positas Blvd Ste 330, Pleasanton, CA, 94588