Nicholas Geoffrey Ashenburg, MD

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

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

1 plan · 1 carrier

Licence A155400 · Current

Licensed to practise in California · since 2018 · expires 2027-12-31 · Tufts University School of Medicine.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

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

$47,774

Medicare paid this office $47,774 for 311 people.

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

Who their Medicare patients are

311 Original Medicare patients in 2024. Average age 75 · Under 65 12% · 85 and older 23% · Women 52% · Also on Medicaid 35% · Health risk score 2.56. Above the middle of the specialty; the typical emergency medicine clinician is at 2.01.

Conditions among them: High blood pressure 75% · Coronary heart disease 43% · Diabetes 36% · Chronic kidney disease 36% · Atrial fibrillation 32% · Heart failure 30% · Depression 27% · Cancer 22% · COPD 18% · Stroke 18% · Dementia 17%.

The office billed $326,749, Medicare allowed $61,796 and paid $47,774; for 381 services of 27 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.

$31,881 in 2024

Medicaid paid $31,881 for 303 billed services this clinician did in 2024, up to 39 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.

$10,018 in 2025

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Research money

Money a company paid to run a study. Where it went to their institution, the clinician is named as an investigator and did not receive it; the amount covers the whole study, often across many sites.

Medicare did not publish checkup rates for this clinician.

NPI

1104238336

Licence

CA A155400, SC 39364California A155400: Current · expires 2027-12-31

Trained

Tufts University School of Medicine, 2014

Group

Stanford Health Care

Gender

Male