Quick answers
- Which hospitals does Yih-Dar Nien work at?
- Medicare's official clinician data lists Yih-Dar Nien at 2 hospitals: Henry Mayo Newhall Hospital and Ronald Reagan UCLA Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Yih-Dar Nien see patients?
- Medicare's clinician data lists 3 practice locations, including Santa Monica, CA and West Hills, CA. Call before your visit to confirm the address.
- What is Yih-Dar Nien's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Yih-Dar Nien accept Medicare assignment?
- Yes. Medicare's clinician data says Yih-Dar Nien accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Yih-Dar Nien offer telehealth?
- Medicare's clinician data says Yih-Dar Nien offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Yih-Dar Nien?
- (310) 451-8751, as listed in official Medicare / NPI Registry data.
- What is Yih-Dar Nien's NPI number?
- 1164636262. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Yih-Dar Nien works
Medicare's Facility Affiliation Data lists Yih-Dar Nien at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Henry Mayo Newhall HospitalValencia, CA · Acute Care Hospital · CCN 050624
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050262
Practice locations
Addresses where Yih-Dar Nien is enrolled with Medicare (CMS data updated 2026-10-02).
- 1260 15th St, Suite 1200Santa Monica, CA 90404 (310) 451‑8751
- 7300 A Medical Ctr DrWest Hills, CA 91307 (818) 676‑4511
- 7300 Medical Ctr DrWest Hills, CA 91307 (818) 676‑4000
Group practices
Medicare enrollment lists Yih-Dar Nien as a member of this group (CMS data updated 2026-10-02).
- UCLA Associated General Surgeons46 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Santa Monica
Clinicians with the same Medicare primary specialty in Santa Monica, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1164636262 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians