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Natalie Gray Kornbluth, NP

Nurse Practitioner · Mountain View

NPI 1902435431

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
1
1 carrier
Offices
3

Offices

3 locations · Sutter Bay Medical Foundation · Cottage Medical Foundation

Looking this up.

Hospitals listed: Santa Barbara Cottage Hospital. 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 Natalie Gray Kornbluth’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
Alignment Health Sutter Advantage +More (HMO)Alignment Health PlanListedOct 3, 2026

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 Barbara Cottage HospitalSanta Barbara, CAAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Cottage Health System, which runs 4 hospitalsPatients rate it 4 of 5 · 85% would definitely recommend it
    Overall rating: 4 of 5 starsWorse than the national rate — SSI - Abdominal Hysterectomy: 4.13, Oct 2024 – Sep 2025Better than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0.43, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.54, Oct 2024 – Sep 2025
See every measure and the patient survey for Santa Barbara Cottage Hospital

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: 1 better, 8 the same, 2 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 Santa Barbara Cottage Hospital
SSI - Abdominal HysterectomyInfections4.13WorseOct 2024 – Sep 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections0.43BetterOct 2024 – Sep 2025
Clostridium Difficile (C.Diff)Infections0.54BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.45 (0.62 to 2.28) · 2,441 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths0.94 (0.7 to 1.18)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths177.7 (138.01 to 217.4) · 179 casesNo differentJul 2022 – Jun 2024
Death rate for CABG surgery patientsComplications and deaths1.5 · 93 casesNoneJul 2022 – Jun 2025
Death rate for COPD patientsComplications and deaths7.7 · 127 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10.5 · 246 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths12.6 · 664 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths13.5 · 843 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths10.9 · 505 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths3.7 · 4,479 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.19 (0.01 to 0.36) · 11,271 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.24 (0.06 to 0.42) · 11,702 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths5 (3.35 to 6.65) · 3,316 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.12 (0 to 2.54) · 1,592 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.39 (1.15 to 3.63) · 3,116 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths6.63 (1.89 to 11.37) · 1,603 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths5.01 (2.08 to 7.95) · 1,565 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths2.32 (0.93 to 3.71) · 836 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.53 (0.02 to 1.04) · 9,175 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths4.9 · 254 casesNoneApr 2023 – Mar 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections1.027No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0.626No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections1.42No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.2 · 266 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits22.3 · 711 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits12.6 · 256 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-7.6 · 746 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits-11.7 · 870 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits15.9 · 842 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits4.8 (3.1 to 7.4) · 110 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits11 (7.9 to 15.5) · 110 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.6 · 266 casesNoneJul 2023 – Jun 2025
Rate of readmission for CABGUnplanned return visits11.7 · 86 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.3 · 138 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits16.1 (12.4 to 21.2) · 510 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits1.1 (0.9 to 1.4) · 577 casesNo differentJan 2024 – Dec 2024

What patients said (3,306 patients answered, 29% of those asked)

Patient survey stars by topic at Santa Barbara Cottage Hospital
Cleanliness4
Nurse communication4
Doctor communication4
Communication about medicines3
Discharge information3
Overall hospital rating4
Quietness3
Recommend hospital5
Share of patients giving the best answer at Santa Barbara Cottage Hospital
Room was "always" clean81%
Nurses "always" communicated well79%
Doctors "always" communicated well80%
Staff "always" explained62%
Yes, staff "did" give patients this information87%
Yes, staff "did" give patients information about help after discharge87%
Doctors "always" explained things so they could understand75%
Doctors "always" listened carefully79%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)81%
Staff "always" explained new medications76%
Nurses "always" explained things so they could understand74%
Nurses "always" listened carefully77%
Nurses "always" treated them with courtesy and respect86%
"Always" quiet at night57%
"YES", patients would definitely recommend the hospital85%
Staff "always" explained possible side effects49%
Yes, staff "did" give patients information about possible symptoms86%

Original Medicare doctor bills

$16,624

Medicare paid this office $16,624 for 254 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 minutes26$4,039$86
Anticoagulant management of patient taking warfarin170$2,976$9
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes32$2,534$55
Long return visit (40+ min)17$2,495$147
Initial hospital care with moderate level of medical decision making at least 75 minutes17$2,160$127

Who their Medicare patients are

254 Original Medicare patients in 2024. Average age 79 · Under 65 6% · 85 and older 27% · Women 34% · Also on Medicaid 15% · Health risk score 1.91. Above the middle of the specialty; the typical nurse practitioner clinician is at 1.42.

Conditions among them: High blood pressure 75% · Atrial fibrillation 74% · Heart failure 43% · Chronic kidney disease 42% · Coronary heart disease 39% · Diabetes 32% · Stroke 20% · COPD 17% · Depression 17% · Cancer 16% · Dementia 13%.

The office billed $77,069, Medicare allowed $20,899 and paid $16,624; for 487 services of 14 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
2024254487791.91$77,069$16,624
20236395722.91$41,436$8,345

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
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes28$3,816$89
Initial hospital care with moderate level of medical decision making at least 75 minutes18$2,352$131
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes21$1,533$59

Drugs they prescribed that Part D paid

$2,417

Pharmacies billed $2,417 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 68) in 2024. At or below the middle of the specialty; the typical nurse practitioner clinician is at 0%.

66 generic and fewer than 11 brand-name prescriptions · $2,417 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.

Largest Part D drug costs
Warfarin45$597$11

Money from drug and device companies

$83 in 2021

A payment is not proof that care is biased.

Payments by company
Abbott LaboratoriesHeartmate 3 Left Ventricular Assist Device$83
2 payments
  • Meals for Heartmate 3 Left Ventricular Assist Device · 2021-12-21 · $25
  • Meals for Heartmate 3 Left Ventricular Assist Device · 2021-04-06 · $58
See all 2 published payments
Every published payment
Abbott LaboratoriesMeals · 2021-12-21Heartmate 3 Left Ventricular Assist Device$25
Abbott LaboratoriesMeals · 2021-04-06Heartmate 3 Left Ventricular Assist Device$58

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
82.4 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1902435431
Licence
CA 95012402
Group
Sutter Bay Medical Foundation · Cottage Medical Foundation
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 363LA2100X (363LA2100X)
Mailing address
325 Distel Cir, Los Altos, CA, 94022
NPI first listed
2020-04-06
NPI last updated
2024-08-27
NPI record certified
2024-08-27

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