Denis Adlai Yen, M.D.
NPI 1568576981ActiveIndividual· Emergency Medicine· Pasadena, CA
Emergency Medicine (M.D.) in Pasadena, California, trained at Hahnemann University College of Medicine (class of 1995). 93 Medicare patients in 2024, $9,531 paid; nearly all of their 273 Part D prescriptions were generic (93%).
Overview
| NPI | 1568576981 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 19, 2006 |
| Last updated in NPPES | Jun 5, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A61518 | CA |
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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 93 |
|---|---|
| Services billed | 173 across 43 procedure codes |
| Paid by Medicare | $9,531 |
Part D prescriptions in 2024
| Prescriptions (claims) | 273 · 273 30-day fills |
|---|---|
| Patients | 213 |
| Total drug cost | $3,541 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Hahnemann University College of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Emergency Medicine |
Medical group
- Exer Medical CorporationHighland, CA · 340 clinicians
Hospital affiliation
- Huntington HospitalPasadena, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other emergency medicine physicians in Pasadena
- 1023019460
- 1023325289
- 1114031515
- 1144690777
- 1295778090
- 1295849883
- 1326097338
- 1558597054
- 1699099242
- 1699889212
- 1790728277
- 1831398759
All 57 emergency medicine physicians in Pasadena · All emergency medicine physicians in California