Dr. Michael T. Chang, MD
ENT (Otolaryngology) (Otolaryngology Physician)
300 Pasteur Dr
Stanford, CA 94305
Who else practices at this address →
Santa Clara County includes mental health (13% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 10
- In the NPI registry since
- 2016
- Medicare patients seen, 2024
- 166
Licensed in California since 2017, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2016Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Otolaryngology Physician primary
CA license A152394 (first issued 2017; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Stanford Health Care Stanford, CA
Medical groups
- Stanford Health Care (3,122 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 166
- Services billed
- 572
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Diagnostic exam of nasal passages using an endoscope | 106 | 101 |
| Biopsy or removal of nasal polyp or tissue using an endoscope | 54 | 45 |
| New patient office or other outpatient visit, 45-59 minutes | 29 | 29 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Ipratropium Bromide Other prescribers in Stanford, CA | 26 |
| Azelastine Hcl Other prescribers in Stanford, CA | 23 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 4 companies reported 7 payments worth $372 in total to this clinician.
| Medtronic, Inc. | $229 |
|---|---|
| Integra Lifesciences Corporation | $83.33 |
| AstraZeneca Pharmaceuticals LP | $39.27 |
| Stryker Corporation | $20.37 |
| Food and Beverage | $354 |
|---|---|
| Travel and Lodging | $18.43 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Medtronic, Inc. Oct 13, 2025 | Travel and Lodging travel to Indianapolis, IN · in-kind | $18.43 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.