William W Chen MD Medical Corporation
NPI 1942386180 · Allergy & Immunology Physician · San Pablo, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William W Chen MD Medical Corporation is a Allergy & Immunology Physician organization in San Pablo, CA (NPI 1942386180).
Provider details
- NPI number
- 1942386180
- Entity type
- Organization
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Chen, President(510) 235-9247
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
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
- 2006-10-31
- Last updated
- 2010-08-23
Frequently asked questions
- What is William W Chen MD Medical Corporation's NPI number?
- William W Chen MD Medical Corporation's National Provider Identifier (NPI) is 1942386180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William W Chen MD Medical Corporation?
- William W Chen MD Medical Corporation is classified in the NPPES registry as Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is William W Chen MD Medical Corporation located?
- William W Chen MD Medical Corporation's practice location on file with NPPES is 2089 Vale Rd # 34, San Pablo, CA 94806.
- What is William W Chen MD Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for William W Chen MD Medical Corporation is (510) 235-9247.
- Does William W Chen MD Medical Corporation accept Medicare?
- William W Chen MD Medical Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for William W Chen MD Medical Corporation?
- The authorized official listed on William W Chen MD Medical Corporation's NPPES record is William Chen, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William W Chen MD Medical Corporation's NPI active?
- Yes — William W Chen MD Medical Corporation's NPI (1942386180) is active in the NPPES registry as of the last update on 2010-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.