Quick answers
- Which hospitals does Gregory Yim work at?
- Medicare's official clinician data lists Gregory Yim at 2 hospitals: Havasu Regional Medical Center and Mountainview Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory Yim see patients?
- Medicare's clinician data lists 2 practice locations, including Las Vegas, NV. Call before your visit to confirm the address.
- What is Gregory Yim's specialty?
- Medicare lists Emergency Medicine as the primary specialty, and also Family Practice.
- Does Gregory Yim accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Yim 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.
- What is the phone number for Gregory Yim?
- (856) 686-4394, as listed in official Medicare / NPI Registry data.
- What is Gregory Yim's NPI number?
- 1215513635. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory Yim works
Medicare's Facility Affiliation Data lists Gregory Yim at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Havasu Regional Medical CenterLake Havasu City, AZ · Acute Care Hospital · CCN 030069
- Mountainview HospitalLas Vegas, NV · Acute Care Hospital · CCN 290039
Practice locations
Addresses where Gregory Yim is enrolled with Medicare (CMS data updated 2026-10-02).
- 3100 N Tenaya WayLas Vegas, NV 89128 (856) 686‑4394
- 9300 W Sunset RdLas Vegas, NV 89148 (702) 880‑2800
Group practices
Medicare enrollment lists Gregory Yim as a member of this group (CMS data updated 2026-10-02).
- Fremont Emergency Services Scherr Ltd133 clinicians in the group
Specialties
- Emergency Medicineprimary
- Family Practicealso
Other emergency medicine doctors in Las Vegas
Clinicians with the same Medicare primary specialty in Las Vegas, NV — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Touro Un Col Of Osteopathic Medicine, New York |
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215513635 |
| 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