William Yang, MD
NPI 1710565999 · Psychiatry Physician · Sylmar, CA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Yang, MD is a Psychiatry Physician provider in Sylmar, CA (NPI 1710565999).
Provider details
- NPI number
- 1710565999
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Specialist174400000X
Other Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clozapine | 41 |
| Quetiapine Fumarate | 36 |
| Sertraline Hcl | 27 |
| Aripiprazole | 21 |
| Lamotrigine | 21 |
| Trazodone Hcl | 21 |
| Bupropion Hclbrand: Bupropion Xl | 18 |
| Escitalopram Oxalate | 15 |
| Fluoxetine Hcl | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-03-30
- Last updated
- 2024-04-18
- Certified
- 2024-04-18
Frequently asked questions
- What is William Yang's NPI number?
- William Yang's National Provider Identifier (NPI) is 1710565999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Yang's specialty?
- William Yang is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Yang located?
- William Yang's practice location on file with NPPES is 14445 Olive View Dr, Sylmar, CA 91342-1437.
- What is William Yang's phone number?
- The practice phone number listed in the NPPES registry for William Yang is (747) 210-3000.
- Does William Yang accept Medicare?
- William Yang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Yang's NPI active?
- Yes — William Yang's NPI (1710565999) is active in the NPPES registry as of the last update on 2024-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.