Quick answers
- Which hospitals does William Yang work at?
- Medicare's official clinician data lists William Yang at 1 hospital: Northridge Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Yang see patients?
- Medicare's clinician data lists 1 practice location in Northridge, CA. Call before your visit to confirm the address.
- What is William Yang's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Nephrology.
- Does William Yang accept Medicare assignment?
- Yes. Medicare's clinician data says William Yang 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 William Yang offer telehealth?
- Medicare's clinician data says William Yang offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William Yang?
- (818) 349-1262, as listed in official Medicare / NPI Registry data.
- What is William Yang's NPI number?
- 1609005479. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Yang works
Medicare's Facility Affiliation Data lists William Yang at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · CCN 050116
Practice locations
Addresses where William Yang is enrolled with Medicare (CMS data updated 2026-10-02).
- 18433 Roscoe Blvd, Suite 202Northridge, CA 91325 (818) 349‑1262
Group practices
Medicare enrollment lists William Yang as a member of this group (CMS data updated 2026-10-02).
- Renal Consultants Medical Group9 clinicians in the group
Specialties
- Internal Medicineprimary
- Nephrologyalso
Other internal medicine doctors in Northridge
Clinicians with the same Medicare primary specialty in Northridge, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1609005479 |
| 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