Evan Chen, MD
NPI 1821675091 · Ophthalmology Physician · Palo Alto, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Evan Chen, MD is a Ophthalmology Physician provider in Palo Alto, CA (NPI 1821675091).
Provider details
- NPI number
- 1821675091
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A180147 (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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 2452 Watson CtPalo Alto, CA 94303-3216Phone: (650) 723-6995
- 513 Parnassus Ave # S321San Francisco, CA 94143-2205Phone: (651) 235-4752
Registry dates
- Enumerated
- 2021-03-25
- Last updated
- 2025-07-07
- Certified
- 2025-07-07
Frequently asked questions
- What is Evan Chen's NPI number?
- Evan Chen's National Provider Identifier (NPI) is 1821675091, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Evan Chen's specialty?
- Evan Chen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Evan Chen located?
- Evan Chen's practice location on file with NPPES is 300 Pasteur Dr, Palo Alto, CA 94305-2200.
- What is Evan Chen's phone number?
- The practice phone number listed in the NPPES registry for Evan Chen is (650) 723-4000.
- Does Evan Chen accept Medicare?
- Evan Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Evan Chen's NPI active?
- Yes — Evan Chen's NPI (1821675091) is active in the NPPES registry as of the last update on 2025-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.