Quick answers
- Which hospitals does Benjamin Yim work at?
- Medicare's official clinician data lists Benjamin Yim at 2 hospitals: John Muir Medical Center - Concord Campus and John Muir Medical Center - Walnut Creek Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Benjamin Yim see patients?
- Medicare's clinician data lists 4 practice locations, including Walnut Creek, CA and Fairfield, CA. Call before your visit to confirm the address.
- What is Benjamin Yim's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does Benjamin Yim accept Medicare assignment?
- Medicare's clinician data says Benjamin Yim may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Benjamin Yim offer telehealth?
- Medicare's clinician data says Benjamin Yim offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Benjamin Yim?
- (925) 867-1900, as listed in official Medicare / NPI Registry data.
- What is Benjamin Yim's NPI number?
- 1598176604. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Benjamin Yim works
Medicare's Facility Affiliation Data lists Benjamin Yim at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · CCN 050496
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
Practice locations
Addresses where Benjamin Yim is enrolled with Medicare (CMS data updated 2026-10-02).
- 120 La Casa Via, Suite 102Walnut Creek, CA 94598 (925) 867‑1900
- 1601 Ygnacio Vly RdWalnut Creek, CA 94596 (925) 939‑3000
- 1860 Pennsylvania AveFairfield, CA 94533 (707) 646‑4114
- 2637 Shadelands DrWalnut Creek, CA 94598
Group practices
Medicare enrollment lists Benjamin Yim as a member of these groups (CMS data updated 2026-10-02).
- Bass Medical Group291 clinicians in the group
- NorthBay Health Medical Foundation213 clinicians in the group
- John Muir Trauma Physicians Billing Service113 clinicians in the group
- Benjamin Yim MD Apc3 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1598176604 |
| 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