THIEN KHAI NGUYEN MD
NPI 1801930201
Surgery in Bellevue, WA
About Thien Khai Nguyen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THIEN KHAI NGUYEN MD (NPI 1801930201) is an individual surgery provider in Bellevue, Washington, licensed in Washington (MD60026209) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Overlake Hospital Medical Center, and is a graduate of University Of Southern California Keck School Of Medicine (2002).
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
Thien Khai Nguyen Md 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 Thien Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bellevue, WA 98004
- Reassigned Medicare billing, Washington enrollment
- 566 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 2
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Overlake Hospital Medical Center
Acute Care Hospitals · Bellevue, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98004 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.
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 Thien Nguyen's NPI number?
The NPI number for Thien Nguyen is 1801930201. It was assigned to this individual provider in the NPPES registry on February 18, 2007.
Where is Thien Nguyen located?
Thien Nguyen practices at 1035 116th Ave NE, Bellevue, WA 98004. The listed phone number is (425) 688-5214.
What is Thien Nguyen's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Thien Nguyen enrolled in Medicare?
Yes. Thien 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 organization bills Medicare for Thien Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thien Nguyen reassigns Medicare benefits to Overlake Medical Clinics, LLC (Bellevue, 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 Thien Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thien Nguyen accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Thien 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 Thien Nguyen affiliated with any hospitals?
According to CMS data, Thien Nguyen is affiliated with Overlake Hospital Medical Center.
When was this NPI record last updated?
The NPPES record for Thien Nguyen was last updated on August 14, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Thien Khai Nguyen, MD · NPI 1801930201
Surgery physician in Bellevue, Washington. Individual provider, active in the CMS NPPES registry since February 18, 2007.
## Identity
- **NPI:** 1801930201 (Entity type: Individual)
- **Enumerated:** February 18, 2007
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** MD60026209 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1035 116TH AVE NE, Bellevue, WA 98004
- **Phone:** (425) 688-5214
## 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:** Overlake Medical Clinics, LLC (NPI 1801828421, Bellevue, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Southern California Keck School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** August 14, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1801930201) · Data from the CMS NPPES public registry.