Ariele Lauren Greenfield, MD

1 location · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Hospitals listed: 757662 · El Camino Health · Stanford Health Care. That is not proof they admit you there this week.

14 plans · 2 carriers

Licence A122857 · Current

Licensed to practise in California · since 2012 · expires 2028-08-31 · University of California, San Diego School of Medicine.

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

2 hospitals

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

• El Camino HealthMountain View, CAAcute Care Hospital · Government - Hospital District or Authority · Has an emergency department · Birthing-friendlyPart of El Camino Health, which runs 2 hospitalsPatients rate it 4 of 5 · 80% would definitely recommend it
  Overall rating: 4 of 5 starsBetter than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.291, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.393, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0, 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

$50,033

Medicare paid this office $50,033 for 144 people. Most of that is long return visits and Botox.

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

Who their Medicare patients are

144 Original Medicare patients in 2024. Average age 73 · Under 65 11% · 85 and older 15% · Women 60% · Also on Medicaid 10% · Health risk score 1.24. At or below the middle of the specialty; the typical neurology clinician is at 1.61.

Conditions among them: High blood pressure 62% · Depression 33% · Coronary heart disease 20% · Diabetes 17% · Atrial fibrillation 15% · Cancer 14% · Chronic kidney disease 13% · Dementia 13% · Stroke 13% · Heart failure 10%.

The office billed $179,111, Medicare allowed $66,932 and paid $50,033; for 2,035 services of 16 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.

$521,223

Pharmacies billed $521,223 in 2024.

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

757 generic and fewer than 11 brand-name prescriptions · $521,223 in drug cost.

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

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

$30 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.

NPI

1114214566

Licence

CA A122857California A122857: Current · expires 2028-08-31

Trained

University of California, San Diego School of Medicine, 2011

Group

Sutter Bay Medical Foundation

Video visits

Lists video visits

Gender

Female