UN SOK SEO M.D. UN
NPI 1447280987
Emergency Medicine - Emergency Medical Services in Cottage Grove, OR
About Un Sok Seo M.d. Un NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
UN SOK SEO M.D. UN (NPI 1447280987) is an individual emergency medical services provider in Cottage Grove, Oregon, licensed in Oregon (MD25947) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Sacred Heart Medical Center - Riverbend, and is a graduate of Loma Linda University School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 3
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
Un Sok Seo M.d. Un 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 Reassignment
Medicare enrollment records show Un Seo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Eugene, OR 97401
- Reassigned Medicare billing, Oregon enrollment
- 58 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sacred Heart Medical Center - Riverbend
Acute Care Hospitals · Springfield, ORPeacehealth Cottage Grove Community Medical Center
Critical Access Hospitals · Cottage Grove, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97424 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
COTTAGE GROVE, OR 97424
COTTAGE GROVE, OR 97424
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 Un Seo's NPI number?
The NPI number for Un Seo is 1447280987. It was assigned to this individual provider in the NPPES registry on July 3, 2006. The provider is also known as Julie Sok Seo M.D..
Where is Un Seo located?
Un Seo practices at 1515 Village Dr, Cottage Grove, OR 97424. The listed phone number is (541) 942-0511.
What is Un Seo's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Un Seo enrolled in Medicare?
Yes. Un Seo 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 organization bills Medicare for Un Seo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Un Seo reassigns Medicare benefits to Eugene Emergency Physicians PC (Eugene, OR). The 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 Un Seo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Un Seo affiliated with any hospitals?
According to CMS data, Un Seo is affiliated with Sacred Heart Medical Center - Riverbend and Peacehealth Cottage Grove Community Medical Center.
When was this NPI record last updated?
The NPPES record for Un Seo was last updated on October 11, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.
# Un Sok Seo, M.D. UN · NPI 1447280987
Emergency Medical Services physician in Cottage Grove, Oregon. Individual provider, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1447280987 (Entity type: Individual)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Emergency Medicine - Emergency Medical Services · taxonomy 207PE0004X
- **State license:** MD25947 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 1515 VILLAGE DR, Cottage Grove, OR 97424-9700
- **Phone:** (541) 942-0511 · **Fax:** (541) 942-0353
## 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:** Eugene Emergency Physicians PC (NPI 1831133677, Eugene, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** October 11, 2007
- **Other identifiers:** Medicaid 213550 (OR); Medicare PIN R132050 (OR); Medicare UPIN I36242
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Source: [NPI Profile](https://npiprofile.com/npi/1447280987) · Data from the CMS NPPES public registry.