Louis Chen, M.D.
NPI 1609968510 · Endocrinology, Diabetes & Metabolism Physician · Seattle, WA
Louis Chen, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Seattle, WA (NPI 1609968510).
Provider details
- NPI number
- 1609968510
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A79663 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-09-28
- Last updated
- 2011-06-18
Frequently asked questions
- What is Louis Chen's NPI number?
- Louis Chen's National Provider Identifier (NPI) is 1609968510, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Chen's specialty?
- Louis Chen is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Chen located?
- Louis Chen's practice location on file with NPPES is 1100 9th Ave, Seattle, WA 98101-2756.
- What is Louis Chen's phone number?
- The practice phone number listed in the NPPES registry for Louis Chen is (206) 223-6620.
- Is Louis Chen's NPI active?
- Yes — Louis Chen's NPI (1609968510) is active in the NPPES registry as of the last update on 2011-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.