Yih-Dar Nien, MD
NPI 1164636262ActiveIndividual· Surgery· Encino, CA
Surgery (MD) with UCLA Associated General Surgeons, practicing in Encino, California. 253 Medicare patients in 2024, $102,813 paid; nearly all of their 130 Part D prescriptions were generic (95%). Intuitive Surgical, Inc. reported $52.23 in payments in 2024, mostly food and beverage. Lists Henry Mayo Newhall Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1164636262 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 9, 2007 |
| Last updated in NPPES | Mar 6, 2025 |
| Certified by provider | Mar 6, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A101665 | 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 - General Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 253 |
|---|---|
| Services billed | 474 across 76 procedure codes |
| Paid by Medicare | $102,813 |
Part D prescriptions in 2024
| Prescriptions (claims) | 130 · 132 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $1,890 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | General Surgery |
| Telehealth | Offers telehealth |
Medical group
- UCLA Associated General SurgeonsLos Angeles, CA · 46 clinicians
Hospital affiliations
- Henry Mayo Newhall HospitalValencia, CA
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
Industry payments (Open Payments)
- 2024$52.23 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $52.23 | 1 |
What the 2024 payments were for
- Food and Beverage$52.23 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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