William Chen, MD
NPI 1780777292 · Otolaryngology/Facial Plastic Surgery Physician · Fairfield, CA
William Chen, MD is a Otolaryngology/Facial Plastic Surgery Physician provider in Fairfield, CA (NPI 1780777292).
Provider details
- NPI number
- 1780777292
- Entity type
- Individual
- Primary specialty
- Otolaryngology/Facial Plastic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G42521 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-10-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Chen's NPI number?
- William Chen's National Provider Identifier (NPI) is 1780777292, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chen's specialty?
- William Chen is listed in the NPPES registry with a primary specialty of Otolaryngology/Facial Plastic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Chen located?
- William Chen's practice location on file with NPPES is 2801 Waterman Blvd., Fairfield, CA 94534-2987.
- What is William Chen's phone number?
- The practice phone number listed in the NPPES registry for William Chen is (707) 428-3687.
- Is William Chen's NPI active?
- Yes — William Chen's NPI (1780777292) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.