Michael T Chang, MD

3 locations · Stanford Health Care · 3,152 clinicians in this group

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

5 plans · 2 carriers

Licence A152394 · Current

Licensed to practise in California · since 2017 · expires 2027-03-31 · Yale 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

$110,053

Medicare paid this office $110,053 for 166 people.

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

Who their Medicare patients are

166 Original Medicare patients in 2024. Average age 72 · Under 65 7% · 85 and older 7% · Women 59% · Also on Medicaid 17% · Health risk score 1.45. Above the middle of the specialty; the typical otolaryngology clinician is at 1.19.

Conditions among them: High blood pressure 68% · Coronary heart disease 28% · Diabetes 26% · Chronic kidney disease 17% · Cancer 16% · Atrial fibrillation 16% · COPD 15% · Depression 14% · Heart failure 13% · Stroke 11%.

The office billed $982,790, Medicare allowed $140,130 and paid $110,053; for 572 services of 43 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.

$1,030 in 2024

Medicaid paid $1,030 for 24 billed services this clinician did in 2024, up to 12 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.

$23,206

Pharmacies billed $23,206 in 2024.

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

101 generic and fewer than 11 brand-name prescriptions · $23,206 in drug cost · 19 antibiotic prescriptions to 15 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

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

$372 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.

Medicare did not publish checkup rates for this clinician.

NPI

1720432016

Licence

CA A152394California A152394: Current · expires 2027-03-31

Group

Stanford Health Care

Video visits

Lists video visits

Gender

Male