Ryan J Ribeira, MD
Emergency Medicine · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 1
- 1 carrier
- Office
- 1
- Since medical school
- 12 years
- University of California, Davis School of Medicine, 2014
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
1 plan · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Ribeira’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| DualConnect (HMO D-SNP) | Santa Clara Family Health Plan | Listed | Sep 1, 2026 |
California Medical Board record
Licence A139010 · Current
Licensed to practise in California · since 2015 · expires 2026-11-30 · University of California, Davis 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 itOverall 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.
| Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths | 5.31 (4.24 to 6.37) · 8,661 cases | Worse | Jul 2022 – Jun 2024 |
| Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits | 14.1 (12.7 to 15.7) · 2,191 cases | Worse | Jan 2024 – Dec 2024 |
| Postoperative respiratory failure rateComplications and deaths | 4.08 (1.95 to 6.21) · 5,296 cases | Better | Jul 2022 – Jun 2024 |
| Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections | 0.317 | Better | Oct 2024 – Sep 2025 |
| Clostridium Difficile (C.Diff)Infections | 0.446 | Better | Oct 2024 – Sep 2025 |
| SSI - Colon SurgeryInfections | 0.241 | Better | Oct 2024 – Sep 2025 |
| Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits | 0.7 (0.6 to 0.9) · 3,348 cases | Better | Jan 2024 – Dec 2024 |
| Abdominopelvic accidental puncture or laceration rateComplications and deaths | 1.06 (0.45 to 1.67) · 5,374 cases | No different | Jul 2022 – Jun 2024 |
| CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths | 0.86 (0.72 to 1) | No different | Jul 2022 – Jun 2024 |
| Death rate among surgical inpatients with serious treatable complicationsComplications and deaths | 166.09 (137.88 to 194.3) · 470 cases | No different | Jul 2022 – Jun 2024 |
| Death rate for CABG surgery patientsComplications and deaths | 1.1 · 192 cases | None | Jul 2022 – Jun 2025 |
| Death rate for COPD patientsComplications and deaths | 6.4 · 146 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart attack patientsComplications and deaths | 9.7 · 253 cases | None | Jul 2022 – Jun 2025 |
| Death rate for heart failure patientsComplications and deaths | 6.3 · 880 cases | None | Jul 2022 – Jun 2025 |
| Death rate for pneumonia patientsComplications and deaths | 10.3 · 935 cases | None | Jul 2022 – Jun 2025 |
| Death rate for stroke patientsComplications and deaths | 8.7 · 501 cases | None | Jul 2023 – Jun 2025 |
| Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths | 2.1 · 7,730 cases | None | Jul 2024 – Jun 2025 |
| Iatrogenic pneumothorax rateComplications and deaths | 0.13 (0 to 0.27) · 20,799 cases | No different | Jul 2022 – Jun 2024 |
| In-hospital fall-associated fracture rateComplications and deaths | 0.28 (0.14 to 0.43) · 23,182 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative acute kidney injury requiring dialysis rateComplications and deaths | 0.94 (0.2 to 1.68) · 5,694 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative hemorrhage or hematoma rateComplications and deaths | 2.36 (1.54 to 3.19) · 7,846 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative sepsis rateComplications and deaths | 5.2 (3.76 to 6.64) · 5,603 cases | No different | Jul 2022 – Jun 2024 |
| Postoperative wound dehiscence rateComplications and deaths | 1.38 (0.23 to 2.53) · 2,211 cases | No different | Jul 2022 – Jun 2024 |
| Pressure ulcer rateComplications and deaths | 0.52 (0.21 to 0.83) · 19,915 cases | No different | Jul 2022 – Jun 2024 |
| Rate of complications for hip/knee replacement patientsComplications and deaths | 3.6 · 416 cases | None | Apr 2023 – Mar 2025 |
| Central Line Associated Bloodstream Infection (ICU + select Wards)Infections | 0.869 | No different | Oct 2024 – Sep 2025 |
| MRSA BacteremiaInfections | 0.857 | No different | Oct 2024 – Sep 2025 |
| SSI - Abdominal HysterectomyInfections | 0.368 | No different | Oct 2024 – Sep 2025 |
| Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits | 16.2 · 247 cases | None | Jul 2023 – Jun 2025 |
| Heart failure (HF) 30-Day Readmission RateUnplanned return visits | 20.5 · 1,021 cases | None | Jul 2023 – Jun 2025 |
| Hospital return days for heart attack patientsUnplanned return visits | 47.8 · 258 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for heart failure patientsUnplanned return visits | -1.6 · 990 cases | None | Jul 2022 – Jun 2025 |
| Hospital return days for pneumonia patientsUnplanned return visits | 20.8 · 976 cases | None | Jul 2022 – Jun 2025 |
| Pneumonia (PN) 30-Day Readmission RateUnplanned return visits | 16.5 · 959 cases | None | Jul 2023 – Jun 2025 |
| Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits | 5.2 (4.4 to 6.2) · 2,191 cases | No different | Jan 2024 – Dec 2024 |
| Rate of readmission after hip/knee replacementUnplanned return visits | 5.1 · 425 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for CABGUnplanned return visits | 9.6 · 158 cases | None | Jul 2023 – Jun 2025 |
| Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits | 19.6 · 183 cases | None | Jul 2023 – Jun 2025 |
| Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits | 12.7 (10.4 to 15.4) · 4,578 cases | No different | Jan 2022 – Dec 2024 |
What patients said (6,810 patients answered, 25% of those asked)
| Cleanliness | 4 |
| Nurse communication | 4 |
| Doctor communication | 4 |
| Communication about medicines | 3 |
| Discharge information | 4 |
| Overall hospital rating | 4 |
| Quietness | 2 |
| Recommend hospital | 5 |
| Room was "always" clean | 75% |
| Nurses "always" communicated well | 82% |
| Doctors "always" communicated well | 81% |
| Staff "always" explained | 63% |
| Yes, staff "did" give patients this information | 89% |
| Yes, staff "did" give patients information about help after discharge | 89% |
| Doctors "always" explained things so they could understand | 76% |
| Doctors "always" listened carefully | 80% |
| Doctors "always" treated them with courtesy and respect | 87% |
| Patients who gave a rating of "9" or "10" (high) | 79% |
| Staff "always" explained new medications | 76% |
| Nurses "always" explained things so they could understand | 77% |
| Nurses "always" listened carefully | 79% |
| Nurses "always" treated them with courtesy and respect | 88% |
| "Always" quiet at night | 53% |
| "YES", patients would definitely recommend the hospital | 83% |
| Staff "always" explained possible side effects | 50% |
| Yes, staff "did" give patients information about possible symptoms | 90% |
Original Medicare doctor bills
$25,991
Medicare paid this office $25,991 for 205 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
| Emergency department visit with high level of medical decision making | 121 | $17,660 | $146 |
| Emergency department visit with moderate level of medical decision making | 33 | $3,058 | $93 |
Who their Medicare patients are
205 Original Medicare patients in 2024. Average age 75 · Under 65 10% · 85 and older 20% · Women 57% · Also on Medicaid 34% · Health risk score 2.22. Above the middle of the specialty; the typical emergency medicine clinician is at 2.01.
Conditions among them: High blood pressure 75% · Diabetes 38% · Coronary heart disease 38% · Chronic kidney disease 38% · Heart failure 27% · Atrial fibrillation 27% · Depression 26% · Cancer 24% · COPD 20% · Dementia 16% · Stroke 15%.
The office billed $143,430, Medicare allowed $33,606 and paid $25,991; for 220 services of 20 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 | 205 | 220 | 75 | 2.22 | $143,430 | $25,991 |
| 2023 | 271 | 297 | 75 | 2.11 | $178,672 | $34,155 |
| 2022 | 239 | 265 | 74 | 2.19 | $173,483 | $32,865 |
| 2021 | 192 | 215 | 74 | 2.19 | $109,573 | $24,844 |
| 2020 | 182 | 209 | 74 | 2.23 | $107,997 | $23,993 |
| 2019 | 206 | 224 | 73 | 2.21 | $120,607 | $25,244 |
| 2018 | 292 | 323 | 73 | 2.00 | $175,666 | $37,512 |
| 2017 | 196 | 239 | 71 | 1.91 | $135,511 | $26,776 |
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
| Emergency department visit with high level of medical decision making | 115 | $17,444 | $152 |
| Emergency department visit with moderate level of medical decision making | 90 | $9,159 | $102 |
| Emergency department visit with low level of medical decision making | 19 | $1,207 | $64 |
2022: 4 services
| Emergency department visit with moderate level of medical decision making | 108 | $12,666 | $117 |
| Emergency department visit with high level of medical decision making | 72 | $12,430 | $166 |
| Initial hospital observation care per day, typically 30 minutes | 15 | $1,605 | $107 |
| Emergency department visit with straightforward medical decision making | 15 | $579 | $39 |
2021: 4 services
| Emergency department visit with moderate level of medical decision making | 90 | $10,784 | $120 |
| Emergency department visit with high level of medical decision making | 49 | $8,332 | $170 |
| Initial hospital observation care per day, typically 70 minutes | 11 | $2,072 | $188 |
| Hospital observation care on day of discharge | 12 | $883 | $74 |
2020: 4 services
| Emergency department visit with high level of medical decision making | 96 | $15,554 | $160 |
| Emergency department visit with moderate level of medical decision making | 40 | $4,171 | $104 |
| Initial hospital observation care per day, typically 30 minutes | 15 | $1,433 | $96 |
| Hospital observation care on day of discharge | 14 | $827 | $59 |
2019: 4 services
| Emergency department visit with high level of medical decision making | 92 | $13,147 | $141 |
| Emergency department visit with moderate level of medical decision making | 54 | $4,958 | $92 |
| Critical care, first 30-74 minutes | 11 | $2,147 | $195 |
| Emergency department visit with low level of medical decision making | 11 | $534 | $49 |
2018: 5 services
| Emergency department visit with high level of medical decision making | 143 | $20,538 | $144 |
| Emergency department visit with moderate level of medical decision making | 69 | $6,733 | $96 |
| Critical care, first 30-74 minutes | 16 | $3,136 | $196 |
| Emergency department visit with low level of medical decision making | 16 | $800 | $50 |
| Hospital observation care on day of discharge | 11 | $735 | $67 |
2017: 4 services
| Emergency department visit with high level of medical decision making | 112 | $16,379 | $145 |
| Emergency department visit with moderate level of medical decision making | 47 | $4,632 | $95 |
| Emergency department visit with low level of medical decision making | 15 | $761 | $51 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 14 | $96 | $7 |
Medicaid work
$20,445 in 2024
Medicaid paid $20,445 for 202 billed services this clinician did in 2024, up to 22 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.
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 119 | $13,071 |
| EMERGENCY DEPT VISIT MOD MDM | 83 | $7,374 |
| 2024 | 202 | 2 | 22 | $20,445 |
| 2023 | 200 | 2 | 20 | $15,527 |
| 2022 | 142 | 1 | 25 | $9,921 |
| 2021 | 119 | 2 | 36 | $6,078 |
| 2020 | 99 | 3 | 40 | $5,343 |
| 2019 | 207 | 3 | 23 | $13,459 |
| 2018 | 362 | 3 | 31 | $27,878 |
See the largest Medicaid services in earlier years
2023
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 99 | $8,786 |
| EMERGENCY DEPT VISIT MOD MDM | 101 | $6,741 |
2022
| EMERGENCY DEPT VISIT MOD MDM | 142 | $9,921 |
2021
| EMERGENCY DEPT VISIT MOD MDM | 83 | $5,630 |
| EMERGENCY DEPARTMENT VISIT MAY NOT REQ PHYS/QHP | 36 | $448 |
2020
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 34 | $2,399 |
| EMERGENCY DEPT VISIT LOW MDM | 53 | $2,219 |
| EMERGENCY DEPT VISIT MOD MDM | 12 | $725 |
2019
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 51 | $5,085 |
| EMERGENCY DEPT VISIT LOW MDM | 90 | $4,388 |
| EMERGENCY DEPT VISIT MOD MDM | 66 | $3,987 |
2018
| EMERGENCY DEPARTMENT VISIT HIGH MDM | 143 | $14,681 |
| EMERGENCY DEPT VISIT MOD MDM | 148 | $9,737 |
| EMERGENCY DEPT VISIT LOW MDM | 71 | $3,461 |
Drugs they prescribed that Part D paid
$1,405
Pharmacies billed $1,405 in 2024.
This is pharmacy cost, not the office bill, and not what patients paid.
46 generic and fewer than 11 brand-name prescriptions · $1,405 in drug cost · 22 antibiotic prescriptions to 21 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.
Year by year
| 2024 | 57 | 46 | None | None | $1,405 |
| 2023 | 64 | 49 | None | None | $3,050 |
| 2022 | 27 | 22 | None | None | $392 |
| 2021 | 16 | 14 | None | None | $1,172 |
| 2020 | 18 | 13 | None | None | $431 |
| 2019 | 38 | 35 | None | None | $634 |
| 2018 | 63 | 54 | None | None | $1,824 |
| 2017 | 67 | 49 | None | None | $1,488 |
| 2016 | 14 | 13 | 0% (0) | None | $226 |
Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.
See the drugs prescribed each year
2018: 1 drug
| Cephalexin | 14 | $73 | $5 |
2017: 1 drug
| Cephalexin | 16 | $99 | $6 |
Money from drug and device companies
$7,095 in 2024
A payment is not proof that care is biased.
| Gilead Sciences | Veklury | $7,095 | 9 payments
|
See all 9 published payments
| Gilead Sciences | Consulting · 2024-09-18 | Veklury | $5,710 |
| Gilead Sciences | Meals · 2024-09-12 | Veklury | $30 |
| Gilead Sciences | Meals · 2024-09-12 | Veklury | $39 |
| Gilead Sciences | Meals · 2024-09-12 | Veklury | $44 |
| Gilead Sciences | Meals · 2024-09-12 | Veklury | $53 |
| Gilead Sciences | Meals · 2024-09-11 | Veklury | $109 |
| Gilead Sciences | Travel · 2024-09-11 | Veklury | $166 |
| Gilead Sciences | Travel · 2024-09-11 | Veklury | $261 |
| Gilead Sciences | Travel · 2024-09-11 | Veklury | $683 |
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
- 1629394036
- Licence
- CA A139010California A139010: Current · expires 2026-11-30
- Trained
- University of California, Davis School of Medicine, 2014 · 12 years ago
- Group
- Stanford Health Care
- Gender
- Male
More record details
- Sole proprietor
- No
- Taxonomy
- Federal specialty code 207P00000X (207P00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2010-04-09
- NPI last updated
- 2024-03-21
- NPI record certified
- 2024-03-21
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 3126 W St Apt 2, Sacramento, CA, 95817