Edward W. Chang, MD
NPI 1528146008ActiveIndividual· Otolaryngology· Santa Rosa, CA
Otolaryngology (MD) in Santa Rosa, California, trained at Columbia University College of Physicians and Surgeons (class of 1994). Medicare paid $4,113 for services to 22 patients in 2024. Merz Pharmaceuticals, LLC reported $18,251 in payments in 2024, mostly speaking and faculty fees.
Overview
| NPI | 1528146008 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | Dec 9, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | A67940 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Otolaryngology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 22 |
|---|---|
| Services billed | 41 across 13 procedure codes |
| Paid by Medicare | $4,113 |
Education and affiliations
| Medical school | Columbia University College of Physicians and Surgeons |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Otolaryngology |
Medical group
- Geoffrey Trenkle DO A Professional Medical CorporationLos Angeles, CA · 16 clinicians
Industry payments (Open Payments)
- 2024$18,251 · 5 payments from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Merz Pharmaceuticals, LLC | $18,251 | 5 |
What the 2024 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$8,565 · 2 payments
- Consulting Fee$7,850 · 1 payment
- Travel and Lodging$1,836 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 21 otolaryngologists in Santa Rosa · All otolaryngologists in California