Nicholas Siena
NPI 1700414349 · Student in an Organized Health Care Education/Training Program · Los Angeles, CA
Enrolled with Medicare as Order and Referring Only - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Siena is a Student in an Organized Health Care Education/Training Program provider in Los Angeles, CA (NPI 1700414349).
Provider details
- NPI number
- 1700414349
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2020-03-30
- Last updated
- 2020-03-30
- Certified
- 2020-03-30
Frequently asked questions
- What is Nicholas Siena's NPI number?
- Nicholas Siena's National Provider Identifier (NPI) is 1700414349, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Siena's specialty?
- Nicholas Siena is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Nicholas Siena located?
- Nicholas Siena's practice location on file with NPPES is 757 Westwood Plz # Surgery, Los Angeles, CA 90095-7419.
- What is Nicholas Siena's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Siena is (310) 206-9291.
- Does Nicholas Siena accept Medicare?
- Nicholas Siena is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Siena's NPI active?
- Yes — Nicholas Siena's NPI (1700414349) is active in the NPPES registry as of the last update on 2020-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.