John K Byun, MD

1 location · Stanford Health Care · 3,152 clinicians in this group

Hospitals listed: Eden Medical Center · Stanford Health Care. That is not proof they admit you there this week.

12 plans · 1 carrier

1 licence

• New Jersey 25MA10129400Medical Doctor · since 2017 · expires 2027-06-30
  ActiveNo board action on this licenceCheck it with the state

We check Colorado, Delaware, Florida, Illinois, Maryland, New Jersey, New York, Tennessee, Texas, Virginia, Washington, plus California above. A state that is not in this list has not been checked, which is not the same as clear.

2 hospitals

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

• Eden Medical CenterCastro Valley, CAAcute Care Hospital · Voluntary non-profit - Other · Has an emergency department · Birthing-friendlyPart of Sutter Health, which runs 27 hospitals in 2 statesPatients rate it 3 of 5 · 75% would definitely recommend it
  Overall rating: 4 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.122, Oct 2024 – Sep 2025
• 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

$66,187

Medicare paid this office $66,187 for 174 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Who their Medicare patients are

174 Original Medicare patients in 2024. Average age 73 · Women 37% · Also on Medicaid 20% · Health risk score 1.54. At or below the middle of the specialty; the typical radiation oncology clinician is at 1.69.

Conditions among them: High blood pressure 67% · Cancer 57% · Chronic kidney disease 26% · Diabetes 24% · Coronary heart disease 23% · Atrial fibrillation 23% · Heart failure 14% · COPD 13% · Depression 13% · Stroke 13% · Dementia 7%.

The office billed $794,160, Medicare allowed $83,124 and paid $66,187; for 878 services of 25 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 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.

$28 in 2025

A payment is not proof that care is biased.

NPI

1528487089

Licence

NJ 25MA10129400New Jersey 25MA10129400: Active

Group

Stanford Health Care

Video visits

Lists video visits

Gender

Male