Siyun Ren, OD
NPI 1811620834 · Optometrist · Bronx, NY
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siyun Ren, OD is a Optometrist provider in Bronx, NY (NPI 1811620834).
Provider details
- NPI number
- 1811620834
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 009569 (NY)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2022-07-07
- Last updated
- 2022-07-07
- Certified
- 2022-07-07
Frequently asked questions
- What is Siyun Ren's NPI number?
- Siyun Ren's National Provider Identifier (NPI) is 1811620834, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siyun Ren's specialty?
- Siyun Ren is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Siyun Ren located?
- Siyun Ren's practice location on file with NPPES is 1650 Selwyn Ave Apt 1c, Bronx, NY 10457-7628.
- What is Siyun Ren's phone number?
- The practice phone number listed in the NPPES registry for Siyun Ren is (718) 960-1397.
- Does Siyun Ren accept Medicare?
- Siyun Ren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siyun Ren's NPI active?
- Yes — Siyun Ren's NPI (1811620834) is active in the NPPES registry as of the last update on 2022-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.