Leonard Chen, MD
NPI 1225117971 · Clinical Cardiac Electrophysiology Physician · Santa Clara, CA
Leonard Chen, MD is a Clinical Cardiac Electrophysiology Physician provider in Santa Clara, CA (NPI 1225117971).
Provider details
- NPI number
- 1225117971
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A52520 (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
- 2006-11-03
- Last updated
- 2007-11-29
Frequently asked questions
- What is Leonard Chen's NPI number?
- Leonard Chen's National Provider Identifier (NPI) is 1225117971, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Chen's specialty?
- Leonard Chen is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Chen located?
- Leonard Chen's practice location on file with NPPES is 710 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Leonard Chen's phone number?
- The practice phone number listed in the NPPES registry for Leonard Chen is (408) 851-3860.
- Is Leonard Chen's NPI active?
- Yes — Leonard Chen's NPI (1225117971) is active in the NPPES registry as of the last update on 2007-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.