SANG YOON OH M.D.
NPI 1538306014
Internal Medicine in Centralia, WA
About Sang Yoon Oh M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SANG YOON OH M.D. (NPI 1538306014) is an individual internal medicine provider in Centralia, Washington, licensed in Washington (MD 60082411) and active in the NPI registry since January 2009. He is enrolled in Medicare PECOS, is affiliated with Multicare Good Samaritan Hospital, and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses 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
Sang Yoon Oh M.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 Reassignment
Medicare enrollment records show Sang Yoon Oh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Centralia, WA 98531
- Reassigned Medicare billing, Washington enrollment
- 915 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 5
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.
Multicare Good Samaritan Hospital
Acute Care Hospitals · Puyallup, WATacoma General Allenmore Hospital
Acute Care Hospitals · Tacoma, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98531 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
CENTRALIA, WA 98531
CENTRALIA, WA 98531
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 Sang Yoon Oh's NPI number?
The NPI number for Sang Yoon Oh is 1538306014. It was assigned to this individual provider in the NPPES registry on January 21, 2009.
Where is Sang Yoon Oh located?
Sang Yoon Oh practices at 914 S Scheuber Rd, Centralia, WA 98531. The listed phone number is (360) 736-2803.
What is Sang Yoon Oh's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sang Yoon Oh enrolled in Medicare?
Yes. Sang Yoon Oh 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 Sang Yoon Oh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sang Yoon Oh reassigns Medicare benefits to South Sound Inpatient Physicians PLLC (Centralia, WA). 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 Sang Yoon Oh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sang Yoon Oh accept?
Health plans from Providence Health Plan list Sang Yoon Oh 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 Sang Yoon Oh affiliated with any hospitals?
According to CMS data, Sang Yoon Oh is affiliated with Multicare Good Samaritan Hospital and Tacoma General Allenmore Hospital.
When was this NPI record last updated?
The NPPES record for Sang Yoon Oh was last updated on February 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Sang Yoon Oh, M.D. · NPI 1538306014
Internal Medicine physician in Centralia, Washington. Individual provider, active in the CMS NPPES registry since January 21, 2009.
## Identity
- **NPI:** 1538306014 (Entity type: Individual)
- **Enumerated:** January 21, 2009
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD 60082411 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 914 S SCHEUBER RD, Centralia, WA 98531-9027
- **Phone:** (360) 736-2803
## 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:** South Sound Inpatient Physicians PLLC (NPI 1639346364, Centralia, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** February 18, 2011
---
Source: [NPI Profile](https://npiprofile.com/npi/1538306014) · Data from the CMS NPPES public registry.