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Joyce Nyaucha Njoroge, MD

Cardiovascular Disease (Cardiology) · Stanford

NPI 1790147965

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
18
4 carriers
Office
1

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

18 plans · 4 carriers

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

18 of 18 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
Anthem Full Dual Advantage Aligned (HMO D-SNP)Anthem Blue CrossListedOct 3, 2026
SCAN Balance (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
SCAN Classic (HMO)SCAN Health PlanListedOct 3, 2026
SCAN MyChoice (HMO)SCAN Health PlanListedOct 3, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A162896 · Current

Licensed to practise in California · since 2019 · expires 2027-06-30 · Case Western Reserve University 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.

  • 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

$108,205

Medicare paid this office $108,205 for 430 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 minutes86$37,394$106
Critical care, first 30-74 minutes46$28,248$186
Long return visit (40+ min)68$15,485$161
Long return visit (40+ min)65$9,188$121
Initial hospital care with moderate level of medical decision making at least 75 minutes27$4,076$151
See all 9 services
Every Original Medicare service billed
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes86$37,394$106
Critical care, first 30-74 minutes46$28,248$186
Long return visit (40+ min)68$15,485$161
Long return visit (40+ min)65$9,188$121
Initial hospital care with moderate level of medical decision making at least 75 minutes27$4,076$151
Hospital discharge day management, 30 minutes or less49$3,632$74
Evaluation of lower heart chamber assist device12$2,373$34
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only162$1,292$7
Heart rhythm review and interpretation of continous external ekg over 8-15 days18$410$23

Procedures Medicare counted

Procedure volume Medicare published
Pacemaker insertion or repair1-10None

Who their Medicare patients are

430 Original Medicare patients in 2024. Average age 73 · Under 65 16% · 85 and older 14% · Women 44% · Also on Medicaid 34% · Health risk score 2.69. Sicker patients than 9 in 10 peers; the typical cardiology clinician is at 1.71.

Conditions among them: High blood pressure 75% · Heart failure 72% · Chronic kidney disease 57% · Coronary heart disease 55% · Atrial fibrillation 55% · Diabetes 50% · Depression 30% · COPD 25% · Cancer 19% · Dementia 19% · Stroke 17%.

The office billed $629,267, Medicare allowed $138,550 and paid $108,205; for 1,111 services of 23 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
20244301,111732.69$629,267$108,205
202376331673.54$124,147$32,050

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 minutes33$19,830$107
Long return visit (40+ min)29$4,028$130
Initial hospital care with moderate level of medical decision making at least 75 minutes12$1,875$156

Medicaid work

$10,635 in 2024

Medicaid paid $10,635 for 263 billed services this clinician did in 2024, up to 58 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.

Largest Medicaid services in 2024
Critical care, evaluation and management of the critically ill or critically injured patient; first 30-74 minutes26$4,252
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES90$2,663
Long return visit (40+ min)48$2,516
Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only99$1,204
Medicaid work by year
2024263458$10,635
202357115$2,045
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
SBSQ HOSPITAL IP/OBS CARE HIGH MDM 50 MINUTES57$2,045

Drugs they prescribed that Part D paid

$188,352

Pharmacies billed $188,352 in 2024.

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

814 generic and fewer than 11 brand-name prescriptions · $188,352 in drug cost · 13 antibiotic prescriptions.

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
Entresto46$52,033$1,131
Jardiance32$43,873$1,371
Eliquis14$17,998$1,286
Repatha Sureclick23$12,877$560
Envarsus Xr12$11,148$929
See all 22 drugs
Every Part D drug this clinician prescribed
Entresto46$52,033$1,131
Jardiance32$43,873$1,371
Eliquis14$17,998$1,286
Repatha Sureclick23$12,877$560
Envarsus Xr12$11,148$929
Sirolimus31$8,069$260
Tacrolimus40$1,493$37
Cyclosporine Modified16$1,145$72
Metoprolol84$814$10
Losartan87$787$9
Rosuvastatin40$692$17
Pantoprazole37$566$15
Carvedilol81$510$6
Bumetanide16$469$29
Spironolactone72$424$6
Digoxin17$404$24
Amlodipine Besylate25$296$12
Atorvastatin29$272$9
Famotidine13$192$15
Clopidogrel20$133$7
Furosemide30$105$4
Lisinopril18$77$4

Year by year

Part D prescribing by year
2024980160NoneNone$188,352
2023134570% (0)None$21,393
202221None0% (0)0%$1,126
20187922None30%$9,184
20176822NoneNone$3,133
20164311NoneNone$3,443

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

Part D drugs prescribed in 2023
Pantoprazole13$220$17
Losartan12$74$6

2018: 1 drug

Part D drugs prescribed in 2018
Eliquis14$5,427$388

Money from drug and device companies

$298 in 2024

Industry payments by year
202424None$298
202024None$274
201912None$42

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
Paragonix TechnologiesNone$160
3 payments
  • Meals · 2024-04-11 · $143
  • Meals · 2024-04-11 · $2
  • Meals · 2024-04-11 · $15
AbiomedImpella$138
1 payment
  • Meals for Impella · 2024-11-08 · $138
See all 4 published payments
Every published payment
AbiomedMeals · 2024-11-08Impella$138
Paragonix TechnologiesMeals · 2024-04-11None$143
Paragonix TechnologiesMeals · 2024-04-11None$2
Paragonix TechnologiesMeals · 2024-04-11None$15
See earlier years (2020, 2019)

2020: $274

Payments by company in 2020
Medical Device Business ServicesCarto 3 System$138
2 payments
  • Meals for Carto 3 System · 2020-03-06 · $43
  • Meals for Carto 3 System · 2020-03-06 · $95
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)Lifevest$136
2 payments
  • Meals for Lifevest · 2020-10-27 · $52
  • Meals for Lifevest · 2020-08-06 · $84

2019: $42

Payments by company in 2019
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)Lifevest$42
2 payments
  • Meals for Lifevest · 2019-09-10 · $19
  • Meals for Lifevest · 2019-08-27 · $23

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
76.5 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1790147965
Licence
CA A162896California A162896: Current · expires 2027-06-30
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207RA0001X (207RA0001X); Internal medicine (207R00000X); Cardiology (207RC0000X)
Mailing address
300 Pasteur Dr, Stanford, CA, 94305
NPI first listed
2016-03-25
NPI last updated
2025-03-26
NPI record certified
2025-03-26

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

Extra NPI addresses: 201 E Huron St, Chicago, IL, 60611