DR. JENNY JEI HAI WON O.D.
NPI 1134587280
Optometrist in Greeley, CO
About Dr. Jenny Jei Hai Won O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JENNY JEI HAI WON O.D. (NPI 1134587280) is an individual optometrist in Greeley, Colorado, licensed in Colorado (0003186) and active in the NPI registry since February 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Jenny Jei Hai Won O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Jenny Won reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greeley, CO 80634
- Reassigned Medicare billing, Colorado enrollment
- 120 clinicians in this Medicare group
Boulder, CO 80301
- Reassigned Medicare billing, Colorado enrollment
- 5 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80634 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREELEY, CO 80634
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jenny Won's NPI number?
The NPI number for Jenny Won is 1134587280. It was assigned to this individual provider in the NPPES registry on February 3, 2016.
Where is Jenny Won located?
Jenny Won practices at 3485 W 10th St Ste C, Greeley, CO 80634. The listed phone number is (970) 353-4746.
What is Jenny Won's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Jenny Won enrolled in Medicare?
Yes. Jenny Won is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jenny Won's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jenny Won reassigns Medicare benefits to 2 organizations: Myeyedr Optometry Of Colorado PC (Greeley, CO) and Simple Optical, Inc. (Boulder, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jenny Won's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jenny Won accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Jenny Won as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Jenny Won was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Jenny Jei Hai Won, O.D. · NPI 1134587280
Optometrist provider in Greeley, Colorado. Individual provider, active in the CMS NPPES registry since February 3, 2016.
## Identity
- **NPI:** 1134587280 (Entity type: Individual)
- **Enumerated:** February 3, 2016
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 0003186 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 3485 W 10TH ST STE C, Greeley, CO 80634-5368
- **Phone:** (970) 353-4746
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Myeyedr Optometry Of Colorado PC (NPI 1326704750, Greeley, CO); Simple Optical, Inc. (NPI 1518352699, Boulder, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** September 26, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1134587280) · Data from the CMS NPPES public registry.