Specialty Directory
Radiation Oncology in Orange, CA
Federal CMS data for 24 radiation oncology providers practicing in Orange, CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
24
Providers
Median industry payments
$661
24
Radiation Oncology Providers
in Orange, CA
$661
Median Industry Payments
per provider (2018–2024)
3,888
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only
Medicare fee-for-service patients (typically 65+). This does not represent total practice volume.
Industry payments span multiple years and payment types; disclosure alone establishes neither wrongdoing nor legality.
Radiation Oncology includes multiple subspecialties with different practice patterns.
Learn more →
Radiation Oncology Providers
NPPES · Open Payments · Medicare| Provider | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|
| JOSHI, AKASH MD | 13,321 | — | MRI contrast dye injection (gadoterate) | $2,127 (2019-2024) | — | Very High |
| MASOTTO, MARK M.D. | 12,640 | — | MRI contrast dye injection (gadobutrol) | $19,034 (2018-2024) | — | Very High |
| VU, DAN M.D. | 7,742 | — | Contrast dye for imaging (iodine-based) | $1,081 (2018-2023) | — | Very High |
| NGO, TRI M.D. | 6,799 | — | Chest X-ray, 1 view | $409 (2019-2023) | — | Very High |
| GUPTA, ARTI MD | 6,510 | — | MRI contrast dye injection (gadoterate) | $611 (2021-2024) | — | Very High |
| LEE, ANDREW M.D. | 5,744 | — | Contrast dye for imaging (iodine-based) | $14 (2021-2021) | — | Very High |
| KIM, PAUL MD | 5,460 | — | Contrast dye for imaging (iodine-based) | $368 (2018-2024) | — | Very High |
| PATEL, ANKIT D.O. | 5,361 | — | Chest X-ray, 1 view | $317 (2023-2024) | — | Very High |
| TRUONG, HIEU M.D. | 5,241 | — | MRI contrast dye injection (gadobutrol) | $154 (2018-2022) | — | Very High |
| KNOLL, ANDREW M.D. | 4,751 | — | MRI contrast dye injection (gadobutrol) | $243 (2018-2022) | — | Very High |
| CHOW, DANIEL MD | 4,540 | — | CT scan of head/brain, without contrast | $75,958 (2018-2024) | — | Very High |
| LEE, CHRISTOPHER M.D. | 4,208 | — | MRI contrast dye injection (gadobutrol) | $756 (2018-2024) | — | Very High |
| MENG, KENNETH M.D. | 3,569 | — | Chest X-ray, 1 view | $710 (2018-2022) | — | Very High |
| KUO, RAYMOND MD | 3,131 | — | Chest X-ray, 1 view | $264 (2022-2024) | — | Very High |
| PANG, JASON M.D. | 3,113 | — | Chest X-ray, 1 view | $740 (2018-2024) | — | Very High |
| CHALIAN, HAMID M.D. | 3,094 | — | CT scan of chest with contrast | $12,458 (2019-2024) | — | Very High |
| PHAM, PETER M.D. | 3,050 | — | Shoulder X-ray, 2+ views | $586 (2018-2024) | — | Very High |
| SHAH, SAMIR M.D. | 2,929 | — | Chest X-ray, 1 view | $366 (2023-2024) | — | Very High |
| LIU, DARICE M.D. | 2,680 | — | Chest X-ray, 1 view | $1,170 (2018-2024) | — | Very High |
| RAY, KIMBERLY M.D. | 1,436 | — | Screening mammography | $88 (2019-2022) | — | Very High |
| TRAN, MARK M.D. | 1,079 | — | Nuclear medicine scan from skull base to mid-thigh with CT | $84 (2020-2024) | — | Very High |
| FLECK, ANDREW M.D. | 992 | — | Chest X-ray, 1 view | $1,299 (2019-2024) | — | Very High |
| HAMEED, TARIQ MD | 949 | — | CT scan of abdomen and pelvis with contrast | $2,084 (2019-2024) | — | Very High |
| CHEN, JENNIFER M.D. | 716 | — | Digital breast tomosynthesis (3D mammogram) | $1,681 (2021-2024) | — | Very High |
Note: Radiation Oncology encompasses multiple subspecialties with different practice patterns.
Differences in payment amounts and procedure volumes may reflect subspecialty focus
rather than practice quality. Consider viewing individual profiles for full context.
By Practice Pattern
Radiation Oncology encompasses multiple practice patterns. Comparing providers within the same pattern provides more meaningful context.
Mixed Practice (23)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| JOSHI, AKASH | 13,321 | $2,127 |
| MASOTTO, MARK | 12,640 | $19,034 |
| VU, DAN | 7,742 | $1,081 |
| NGO, TRI | 6,799 | $409 |
| GUPTA, ARTI | 6,510 | $611 |
| LEE, ANDREW | 5,744 | $14 |
| KIM, PAUL | 5,460 | $368 |
| PATEL, ANKIT | 5,361 | $317 |
| TRUONG, HIEU | 5,241 | $154 |
| KNOLL, ANDREW | 4,751 | $243 |
Cardiac Imaging (1)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| TRAN, MARK | 1,079 | $84 |