Madalyn Rivas, MD
Hospitalist · Los Altos
- 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
- 3
Offices
3 locations · Sutter Bay Medical Foundation · Galen Inpatient Physicians PC
Hospitals listed: Adventist Health Lodi Memorial. 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 Dr. Rivas’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.
- Adventist Health Lodi MemorialLodi, CAAcute Care Hospital · Voluntary non-profit - Other · Has an emergency department · Birthing-friendlyPart of Adventist Health, which runs 28 hospitals in 3 statesPatients rate it 3 of 5 · 69% would definitely recommend itOverall rating: 3 of 5 starsBetter than the national rate — Catheter Associated Urinary Tract Infections (ICU + select Wards): 0, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.222, Oct 2024 – Sep 2025
See every measure and the patient survey for Adventist Health Lodi Memorial
Behind the star rating — Deaths: 0 better, 7 the same, 0 worse of 7 measures. Safety: 0 better, 6 the same, 0 worse of 6 measures. Readmissions: 1 better, 3 the same, 2 worse of 6 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.222 | Better | Oct 2024 – Sep 2025 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.19 (0.16 to 2.22) · 678 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.98 (0.59 to 1.38) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 203.28 (143.15 to 263.4) · 29 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for COPD patientsComplications and deaths | 8.4 · 132 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 11.8 · 43 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 10.7 · 334 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 17.2 · 570 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 11.9 · 184 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 4.1 · 1,823 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.23 (0.02 to 0.45) · 4,072 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.28 (0.08 to 0.49) · 4,094 cases | No different | Jul 2022 – Jun 2024 |
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 3.18 (0.83 to 5.53) · 476 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 1.63 (0 to 3.34) · 81 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.46 (0.8 to 4.13) · 448 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative respiratory failure rateComplications and deaths | 8.29 (0 to 17.86) · 79 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 4.88 (0.69 to 9.07) · 78 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.67 (0.18 to 3.16) · 142 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.74 (0 to 1.53) · 3,347 cases | No different | Jul 2022 – Jun 2024 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.368 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 1.655 | No different | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.506 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 14.3 · 27 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 22.3 · 450 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | 47.3 · 381 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 25.2 · 604 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 20.1 · 661 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 18.9 · 188 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 11.6 (8.9 to 15.2) · 932 cases | No different | Jan 2022 – Dec 2024 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.9 (0.7 to 1.2) · 449 cases | No different | Jan 2024 – Dec 2024 |
What patients said (438 patients answered, 17% of those asked)
| Cleanliness | 4 |
| Nurse communication | 3 |
| Doctor communication | 2 |
| Communication about medicines | 2 |
| Discharge information | 3 |
| Overall hospital rating | 3 |
| Quietness | 3 |
| Recommend hospital | 3 |
| Room was "always" clean | 76% |
| Nurses "always" communicated well | 76% |
| Doctors "always" communicated well | 72% |
| Staff "always" explained | 55% |
| Yes, staff "did" give patients this information | 86% |
| Yes, staff "did" give patients information about help after discharge | 84% |
| Doctors "always" explained things so they could understand | 68% |
| Doctors "always" listened carefully | 70% |
| Doctors "always" treated them with courtesy and respect | 79% |
| Patients who gave a rating of "9" or "10" (high) | 68% |
| Staff "always" explained new medications | 69% |
| Nurses "always" explained things so they could understand | 73% |
| Nurses "always" listened carefully | 71% |
| Nurses "always" treated them with courtesy and respect | 84% |
| "Always" quiet at night | 54% |
| "YES", patients would definitely recommend the hospital | 69% |
| Staff "always" explained possible side effects | 41% |
| Yes, staff "did" give patients information about possible symptoms | 88% |
Original Medicare doctor bills
$15,225
Medicare paid this office $15,225 for 81 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Subsequent hospital care with moderate levelof medical decision making at least 50 minutes | 37 | $6,414 | $93 |
| Initial hospital care with moderate level of medical decision making at least 75 minutes | 24 | $3,259 | $136 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 25 | $2,966 | $62 |
| Hospital discharge day management, more than 30 minutes | 23 | $2,081 | $90 |
Who their Medicare patients are
81 Original Medicare patients in 2024. Average age 74 · Under 65 19% · 85 and older 24% · Women 52% · Also on Medicaid 40% · Health risk score 2.62. Above the middle of the specialty; the typical hospitalist clinician is at 2.49.
Conditions among them: High blood pressure 75% · Chronic kidney disease 59% · Heart failure 57% · Diabetes 56% · Coronary heart disease 44% · Atrial fibrillation 38% · COPD 35% · Depression 33% · Stroke 25% · Cancer 17%.
The office billed $112,875, Medicare allowed $19,110 and paid $15,225; for 169 services of 7 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.
Money from drug and device companies
$70 in 2024
A payment is not proof that care is biased.
| AstraZeneca Pharmaceuticals LP | Airsupra | $70 | 1 payment
|
See the published payment
| AstraZeneca Pharmaceuticals LP | Meals · 2024-05-22 | Airsupra | $70 |
Professional record
- NPI
- 1447830187
- Group
- Sutter Bay Medical Foundation · Galen Inpatient Physicians PC
- Gender
- Female
More record details
- Sole proprietor
- No
- Taxonomy
- Internal medicine (207R00000X)
- Mailing address
- Po Box 276950, Sacramento, CA, 95827
- NPI first listed
- 2021-04-08
- NPI last updated
- 2025-06-06
- NPI record certified
- 2025-06-06
This is when the NPI record was last certified, not a medical board exam.