Sothy Lun Pheng, MD
NPI 1083697007ActiveIndividual· Internal Medicine· Fullerton, CA
Internal Medicine (MD) in Fullerton, California, trained at University of Connecticut School of Medicine (class of 2004). In 2024 Medicare paid $301,973 for 329 patients, and Part D covered 605 of their prescriptions, 87% of them generic. Kestra Medical Technology Services, Inc. was the largest of 4 companies reporting payments in 2025, $561.79 in all, mostly food and beverage.
Overview
| NPI | 1083697007 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 23, 2005 |
| Last updated in NPPES | Sep 9, 2020 |
| Certified by provider | Sep 9, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | C132666 | CA |
| Internal Medicine | 207R00000X | 220489 | MA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 329 |
|---|---|
| Services billed | 3,031 across 10 procedure codes |
| Paid by Medicare | $301,973 |
Part D prescriptions in 2024
| Prescriptions (claims) | 605 · 685 30-day fills |
|---|---|
| Patients | 203 |
| Total drug cost | $41,502 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Connecticut School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Internal Medicine |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliations
- Providence St. Jude Medical CenterFullerton, CA
- Uci Health-OrangeOrange, CA
Other facilities
- Kindred Hospital BreaLong-term care hospital · Brea, CA
Industry payments (Open Payments)
- 2025$561.79 · 21 payments from 4 companies
- 2024$99.83 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Kestra Medical Technology Services, Inc. | $323.71 | 13 |
| Pfizer Inc. | $107.11 | 5 |
| Abiomed | $104.66 | 2 |
| E.R. Squibb & Sons, L.L.C. | $26.31 | 1 |
What the 2025 payments were for
- Food and Beverage$561.79 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 56 internal medicine physicians in Fullerton · All internal medicine physicians in California