William Chen M.D. Inc.
NPI 1619141629 · Ophthalmology Physician · Irvine, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Chen M.D. Inc. is a Ophthalmology Physician organization in Irvine, CA (NPI 1619141629).
Provider details
- NPI number
- 1619141629
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Chen, President(562) 426-0603
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Clinic/Center261Q00000X
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2008-04-22
- Last updated
- 2022-01-24
- Certified
- 2022-01-24
Frequently asked questions
- What is William Chen M.D. Inc.'s NPI number?
- William Chen M.D. Inc.'s National Provider Identifier (NPI) is 1619141629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William Chen M.D. Inc.?
- William Chen M.D. Inc. is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Chen M.D. Inc. located?
- William Chen M.D. Inc.'s practice location on file with NPPES is 18 Endeavor Ste 305, Irvine, CA 92618-3177.
- What is William Chen M.D. Inc.'s phone number?
- The practice phone number listed in the NPPES registry for William Chen M.D. Inc. is (949) 585-5188.
- Does William Chen M.D. Inc. accept Medicare?
- William Chen M.D. Inc. 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 Chen M.D. Inc.?
- The authorized official listed on William Chen M.D. Inc.'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 Chen M.D. Inc.'s NPI active?
- Yes — William Chen M.D. Inc.'s NPI (1619141629) is active in the NPPES registry as of the last update on 2022-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.