Hellen Yun, OD
NPI 1841442159 · Optometrist · Joliet, IL
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hellen Yun, OD is a Optometrist provider in Joliet, IL (NPI 1841442159).
Provider details
- NPI number
- 1841442159
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- No
- License
- 046.010163 (IL)
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
17 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
- 2008-10-17
- Last updated
- 2008-10-17
Frequently asked questions
- What is Hellen Yun's NPI number?
- Hellen Yun's National Provider Identifier (NPI) is 1841442159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hellen Yun's specialty?
- Hellen Yun is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Hellen Yun located?
- Hellen Yun's practice location on file with NPPES is 3340 Mall Loop Dr, Joliet, IL 60431-1057.
- What is Hellen Yun's phone number?
- The practice phone number listed in the NPPES registry for Hellen Yun is (815) 436-1582.
- Does Hellen Yun accept Medicare?
- Hellen Yun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hellen Yun's NPI active?
- Yes — Hellen Yun's NPI (1841442159) is active in the NPPES registry as of the last update on 2008-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.