QUYNH-UYEN NGUYEN SMITH MD
NPI 1780929109
Pediatrics - Pediatric Critical Care Medicine in Fountain Valley, CA
About Quynh-uyen Nguyen Smith Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
QUYNH-UYEN NGUYEN SMITH MD (NPI 1780929109) is an individual pediatric critical care medicine provider in Fountain Valley, California, licensed in California (A148888) and active in the NPI registry since December 2012. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Quynh-uyen Nguyen Smith Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Quynh-uyen Smith reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Modesto, CA 95355
- Reassigned Medicare billing, California enrollment
- 3,056 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 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
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 Quynh-uyen Smith's NPI number?
The NPI number for Quynh-uyen Smith is 1780929109. It was assigned to this individual provider in the NPPES registry on December 11, 2012.
Where is Quynh-uyen Smith located?
Quynh-uyen Smith practices at 17100 Euclid Street Picu/Peds Department, Fountain Valley, CA 92708. The listed phone number is (714) 966-7253.
What is Quynh-uyen Smith's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.
Is Quynh-uyen Smith enrolled in Medicare?
Yes. Quynh-uyen Smith is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Quynh-uyen Smith's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Quynh-uyen Smith reassigns Medicare benefits to Sutter Valley Medical Foundation (Modesto, CA). 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 Quynh-uyen Smith's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Quynh-uyen Smith was last updated on June 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Quynh-Uyen Nguyen Smith, MD · NPI 1780929109
Pediatric Critical Care Medicine physician in Fountain Valley, California. Individual provider, active in the CMS NPPES registry since December 11, 2012.
## Identity
- **NPI:** 1780929109 (Entity type: Individual)
- **Enumerated:** December 11, 2012
- **Primary specialty:** Pediatrics - Pediatric Critical Care Medicine · taxonomy 2080P0203X
- **State license:** A148888 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 17100 EUCLID STREET, PICU/PEDS DEPARTMENT, Fountain Valley, CA 92708-9270
- **Phone:** (714) 966-7253
## 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:** Sutter Valley Medical Foundation (NPI 1669846986, Modesto, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 8, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1780929109) · Data from the CMS NPPES public registry.