Woody Chang
NPI 1295153187ActiveIndividual· Internal Medicine, Geriatric Medicine· Sunnyvale, CA
Internal Medicine, Geriatric Medicine in Sunnyvale, California, trained at Stanford University School of Medicine (class of 2014). In 2024 Medicare paid $103,317 for 138 patients, and Part D covered 1,402 of their prescriptions, 79% of them generic.
Overview
| NPI | 1295153187 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Mar 29, 2014 |
| Last updated in NPPES | Dec 10, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | A152122 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Geriatric Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 138 |
|---|---|
| Services billed | 944 across 8 procedure codes |
| Paid by Medicare | $103,317 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,402 · 1,433 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $87,867 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Geriatric Medicine |
| Secondary specialties | Internal Medicine |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Other facilities
- Cedar Crest Nursing and Rehabilitation CenterNursing home · Sunnyvale, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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