David Alan Cahn, MD

1 location · Hamilton Avenue Medical Group Inc · 3 clinicians in this group

Hospitals listed: Good Samaritan Hospital · Santa Clara Valley Medical Center · Stanford Health Care. That is not proof they admit you there this week.

32 plans · 9 carriers

4 measures · 2023

Medicare asked this office to report how often certain checkups happened in 2023. This is not a grade for the doctor. A specialist’s patients may not need every screening.

What the office says it does

Boxes the office ticked on its Medicare worksheet for 2023. Nobody checks these.

• Glycemic management services

3 hospitals

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

• Good Samaritan HospitalSan Jose, CAAcute Care Hospital · Proprietary · Has an emergency department · Birthing-friendlyPart of HCA Healthcare, which runs 185 hospitals in 19 statesPatients rate it 2 of 5 · 67% would definitely recommend it
  Overall rating: 2 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.337, Oct 2024 – Sep 2025
• Santa Clara Valley Medical CenterSan Jose, CAAcute Care Hospital · Government - Local · Has an emergency department · Birthing-friendlyPart of Santa Clara Valley Health and Hospital System, which runs 3 hospitalsPatients rate it 3 of 5 · 70% would definitely recommend it
  Overall rating: 2 of 5 starsWorse than the national rate — SSI - Colon Surgery: 2.572, Oct 2024 – Sep 2025Better than the national rate — Central Line Associated Bloodstream Infection (ICU + select Wards): 0.563, Oct 2024 – Sep 2025Better than the national rate — Clostridium Difficile (C.Diff): 0.256, Oct 2024 – Sep 2025Better than the national rate — MRSA Bacteremia: 0.369, 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

$171,737

Medicare paid this office $171,737 for 269 people.

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

Who their Medicare patients are

269 Original Medicare patients in 2024. Average age 77 · Under 65 5% · 85 and older 20% · Women 52% · Also on Medicaid 10% · Health risk score 1.25. Above the middle of the specialty; the typical family practice clinician is at 1.13.

Conditions among them: High blood pressure 75% · Diabetes 51% · Coronary heart disease 31% · Chronic kidney disease 27% · Cancer 21% · Atrial fibrillation 20% · Depression 19% · Heart failure 16% · COPD 16% · Stroke 13% · Dementia 10%.

The office billed $480,185, Medicare allowed $226,731 and paid $171,737; for 2,040 services of 36 kinds; $9,602 of it was for drugs given in the office and $162,135 for care.

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.

$2,733 in 2024

Medicaid paid $2,733 for 340 billed services this clinician did in 2024, up to 48 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.

$2,243,534

Pharmacies billed $2,243,534 in 2024.

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

Opioids were 5% of their Part D prescriptions (495 of 10,630) in 2024. Above the middle of the specialty; the typical family practice clinician is at 2%. Long-acting opioids: 21% of their opioid prescriptions.

8,324 generic and 2,227 brand-name prescriptions · $2,243,534 in drug cost · 250 antibiotic prescriptions to 127 people · 56 antipsychotic prescriptions to people over 65.

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.