UYEN NGUYEN DO
NPI 1558898783
Emergency Medicine in Dixon, IL
About Uyen Nguyen Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
UYEN NGUYEN DO (NPI 1558898783) is an individual emergency medicine provider in Dixon, Illinois, licensed in Illinois (036171184) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS, is affiliated with Hca Florida Osceola Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Uyen Nguyen Do 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
22Medicare enrollment records show Uyen Nguyen reassigns Medicare billing to 22 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rockford, IL 61104
- Reassigned Medicare billing, Illinois enrollment
- 106 clinicians in this Medicare group
Belvidere, IL 61008
- Reassigned Medicare billing, Illinois enrollment
- 90 clinicians in this Medicare group
Peoria, IL 61615
- Reassigned Medicare billing, Illinois enrollment
- 2,944 clinicians in this Medicare group
Kankakee, IL 60901
- Reassigned Medicare billing, Illinois enrollment
- 61 clinicians in this Medicare group
Centerville, IA 52544
- Reassigned Medicare billing, Iowa enrollment
- 43 clinicians in this Medicare group
Salem, IN 47167
- Reassigned Medicare billing, Indiana and Kentucky enrollments
- Also billed through NPI 1811648827 (Kentucky)
- 532 clinicians in this Medicare group
La Grange, KY 40031
- Reassigned Medicare billing, Kentucky enrollment
- 77 clinicians in this Medicare group
Lorain, OH 44053
- Reassigned Medicare billing, Ohio enrollment
- 51 clinicians in this Medicare group
Oberlin, OH 44074
- Reassigned Medicare billing, Ohio enrollment
- 51 clinicians in this Medicare group
Memphis, TN 38128
- Reassigned Medicare billing, Tennessee enrollment
- 250 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hca Florida Osceola Hospital
Acute Care Hospitals · Kissimmee, FLMercyone Centerville Medical Center
Critical Access Hospitals · Centerville, IABaptist Health Louisville
Acute Care Hospitals · Louisville, KYBaptist Health Lagrange
Acute Care Hospitals · La Grange, KYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 61021 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Uyen Nguyen's NPI number?
The NPI number for Uyen Nguyen is 1558898783. It was assigned to this individual provider in the NPPES registry on May 18, 2017.
Where is Uyen Nguyen located?
Uyen Nguyen practices at 403 E 1st St, Dixon, IL 61021. The listed phone number is (815) 288-5531.
What is Uyen Nguyen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Uyen Nguyen enrolled in Medicare?
Yes. Uyen Nguyen 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 Uyen Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Uyen Nguyen reassigns Medicare benefits to 22 organizations: Rockford Emergency Physicians, LLC (Rockford, IL), Belvidere Emergency Physicians, LLC (Belvidere, IL), Osf Multi-Specialty Group (Peoria, IL), Riverside Emergency Physicians, LLC (Kankakee, IL), Mercy Medical Center-Centerville (Centerville, IA) and 17 more organizations, listed in the Medicare section above. 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 Uyen Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Uyen Nguyen accept?
Health plans from CareSource, Oscar Health Maintenance Organization of Florida and Wellmark Health Plan of Iowa, Inc. list Uyen Nguyen 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.
Is Uyen Nguyen affiliated with any hospitals?
According to CMS data, Uyen Nguyen is affiliated with Hca Florida Osceola Hospital, Mercyone Centerville Medical Center, Baptist Health Louisville and Baptist Health Lagrange.
When was this NPI record last updated?
The NPPES record for Uyen Nguyen was last updated on December 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Uyen Nguyen, DO · NPI 1558898783
Emergency Medicine physician in Dixon, Illinois. Individual provider, active in the CMS NPPES registry since May 18, 2017.
## Identity
- **NPI:** 1558898783 (Entity type: Individual)
- **Enumerated:** May 18, 2017
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036171184 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 403 E 1ST ST, Dixon, IL 61021-3116
- **Phone:** (815) 288-5531 · **Fax:** (815) 285-5558
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 22 organizations under Medicare reassignment (form CMS-855R): Rockford Emergency Physicians, LLC (NPI 1639876634, Rockford, IL); Belvidere Emergency Physicians, LLC (NPI 1306543319, Belvidere, IL); Osf Multi-Specialty Group (NPI 1154908929, Peoria, IL); Riverside Emergency Physicians, LLC (NPI 1548969181, Kankakee, IL); Mercy Medical Center-Centerville (NPI 1356391635, Centerville, IA); and 17 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lake Erie College Of Osteopathic Medicine, Erie, class of 2017
## Record status
- **NPPES last updated:** December 18, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1558898783) · Data from the CMS NPPES public registry.