Caroline An Yu Chang, DDS
General Practice · Sunnyvale
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 1
- 1 carrier
- Office
- 1
Offices
1 location
Plans that list them
1 plan · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Chang’s office at (909) 576-6938 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| AARP Medicare Advantage from UHC CA-10 (HMO-POS) | UnitedHealthcare | Listed, may be out of date | Jun 10, 2026 |
Medicaid work
$168,267 in 2024
Medicaid paid $168,267 for 556 billed services this clinician did in 2024, up to 107 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.
| Service | 556 | $168,267 |
| 2024 | 556 | 1 | 107 | $168,267 |
| 2023 | 1,843 | 1 | 187 | $528,050 |
| 2022 | 227 | 1 | 35 | $63,715 |
| 2021 | 111 | 1 | 33 | $30,897 |
| 2019 | 84 | 1 | 19 | $20,714 |
| 2018 | 8,741 | 1 | 307 | $2,068,636 |
See the largest Medicaid services in earlier years
2023
| Service | 1,843 | $528,050 |
2022
| Service | 227 | $63,715 |
2021
| Service | 111 | $30,897 |
2019
| Service | 84 | $20,714 |
2018
| Service | 8,741 | $2,068,636 |
Money from drug and device companies
$15 in 2025
| 2025 | 1 | 1 | None | $15 |
| 2022 | 1 | 1 | None | $27 |
| 2019 | 1 | 1 | None | $35 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Hologic Sales and Service | Aptima | $15 | 1 payment
|
See the published payment
| Hologic Sales and Service | Meals · 2025-05-28 | Aptima | $15 |
See earlier years (2022, 2019)
2022: $27
| Dentsply Sirona | Cavitron | $27 | 1 payment
|
2019: $35
| Premier Dental Products | Enamelon Preventive Treatment | $35 | 1 payment
|
Professional record
- NPI
- 1942638861
- Licence
- CA 62872
More record details
- Sole proprietor
- Yes
- Taxonomy
- Federal specialty code 1223G0001X (1223G0001X)
- Mailing address
- 1002 E El Camino Real, Sunnyvale, CA, 94087
- NPI first listed
- 2013-10-31
- NPI last updated
- 2014-03-27
This is when the NPI record was last certified, not a medical board exam.