William Chan, MD
NPI 1336836139 · Internal Medicine Physician · West Hollywood, CA
William Chan, MD is a Internal Medicine Physician provider in West Hollywood, CA (NPI 1336836139).
Provider details
- NPI number
- 1336836139
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- PTL12618 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-04-20
- Last updated
- 2024-05-23
- Certified
- 2024-05-23
Frequently asked questions
- What is William Chan's NPI number?
- William Chan's National Provider Identifier (NPI) is 1336836139, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chan's specialty?
- William Chan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Chan located?
- William Chan's practice location on file with NPPES is 8700 Beverly Blvd Ste 5512, West Hollywood, CA 90048-1804.
- What is William Chan's phone number?
- The practice phone number listed in the NPPES registry for William Chan is (310) 423-5161.
- Is William Chan's NPI active?
- Yes — William Chan's NPI (1336836139) is active in the NPPES registry as of the last update on 2024-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.