Sheila Phuong Nguyen, MD
NPI 1033435987ActiveIndividual· Internal Medicine· Fountain Valley, CA
Internal Medicine (MD) in Fountain Valley, California, trained at University of Minnesota Medical School (class of 2010). 118 Medicare patients in 2024, $28,883 paid; nearly all of their 172 Part D prescriptions were generic (91%). Siemens Medical Solutions USA, Inc. reported $15.45 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1033435987 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 18, 2010 |
| Last updated in NPPES | Dec 23, 2022 |
| Certified by provider | Dec 23, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | C174484 | CA |
| Pediatrics | 208000000X | MD455531 | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA); Practitioner - Pediatric Medicine (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 118 |
|---|---|
| Services billed | 290 across 8 procedure codes |
| Paid by Medicare | $28,883 |
Part D prescriptions in 2024
| Prescriptions (claims) | 172 · 199 30-day fills |
|---|---|
| Patients | 80 |
| Total drug cost | $8,159 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Hospital affiliation
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
Industry payments (Open Payments)
- 2025$15.45 · 1 payment from 1 company
- 2024$20.98 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Siemens Medical Solutions USA, Inc. | $15.45 | 1 |
What the 2025 payments were for
- Food and Beverage$15.45 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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