Derek Susumu Moriyama
NPI 1851747901ActiveIndividual· Internal Medicine, Hospice and Palliative Medicine· Tustin, CA
Internal Medicine, Hospice and Palliative Medicine in Tustin, California, trained at University of California, Irvine, California College of Medicine (class of 2016). Part D covered 562 prescriptions written in 2024, 86% of them generic.
Overview
| NPI | 1851747901 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | May 8, 2016 |
| Last updated in NPPES | May 29, 2026 |
| Certified by provider | May 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hospice and Palliative Medicine Primary | 207RH0002X | A168883 | CA |
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 - Internal Medicine (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 562 · 590 30-day fills |
|---|---|
| Patients | 115 |
| Total drug cost | $44,862 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospice/Palliative Care |
Medical group
- Hmts IncIrvine, CA · 118 clinicians
Other facilities
- Providence at Home With Compassus Hospice Care la CountyHospice · Torrance, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records