DENNIS TRIDUNG NGUYEN MD
NPI 1952185209
General Practice in Seattle, WA
About Dennis Tridung Nguyen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS TRIDUNG NGUYEN MD (NPI 1952185209) is an individual general practice provider in Seattle, Washington, licensed in Washington (MDCE.ML.61439927) and active in the NPI registry since August 2023. He is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dennis Tridung Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Dennis Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98118
- Reassigned Medicare billing, Washington enrollment
- 121 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.
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.
SEATTLE, WA 98118
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 Dennis Nguyen's NPI number?
The NPI number for Dennis Nguyen is 1952185209. It was assigned to this individual provider in the NPPES registry on August 18, 2023.
Where is Dennis Nguyen located?
Dennis Nguyen practices at 3815 S Othello St, Seattle, WA 98118. The listed phone number is (206) 788-3500.
What is Dennis Nguyen's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Dennis Nguyen enrolled in Medicare?
Yes. Dennis Nguyen is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Dennis Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Nguyen reassigns Medicare benefits to International Community Health Services (Seattle, 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 Dennis Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dennis Nguyen accept?
Health plans from Ambetter Health list Dennis 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.
When was this NPI record last updated?
The NPPES record for Dennis Nguyen was last updated on April 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Dennis Tridung Nguyen, MD · NPI 1952185209
General Practice physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since August 18, 2023.
## Identity
- **NPI:** 1952185209 (Entity type: Individual)
- **Enumerated:** August 18, 2023
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** MDCE.ML.61439927 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 3815 S OTHELLO ST, Seattle, WA 98118-3510
- **Phone:** (206) 788-3500
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** International Community Health Services (NPI 1902983109, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** April 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1952185209) · Data from the CMS NPPES public registry.