TONY DUC HUYNH MD
NPI 1366021966
Orthopaedic Surgery in Saint Louis, MO
About Tony Duc Huynh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TONY DUC HUYNH MD (NPI 1366021966) is an individual orthopaedic surgery provider in Saint Louis, Missouri, licensed in Missouri (2026000949) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Barnes-jewish West County Hospital, and maintains a secondary practice location in Saint Louis.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Tony Duc Huynh 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 Tony Huynh reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 157 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Barnes-Jewish West County Hospital
Acute Care Hospitals · Creve Coeur, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63110
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 Tony Huynh's NPI number?
The NPI number for Tony Huynh is 1366021966. It was assigned to this individual provider in the NPPES registry on April 2, 2021.
Where is Tony Huynh located?
Tony Huynh practices at 660 S Euclid Ave # 82332909, Saint Louis, MO 63110. The listed phone number is (314) 514-3500.
What is Tony Huynh's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Tony Huynh enrolled in Medicare?
Yes. Tony Huynh 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 Tony Huynh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tony Huynh reassigns Medicare benefits to Washington University (Saint Louis, MO). 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 Tony Huynh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tony Huynh accept?
Health plans from UnitedHealthcare list Tony Huynh 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 Tony Huynh affiliated with any hospitals?
According to CMS data, Tony Huynh is affiliated with Barnes-Jewish West County Hospital.
When was this NPI record last updated?
The NPPES record for Tony Huynh was last updated on July 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Tony Duc Huynh, MD · NPI 1366021966
Orthopaedic Surgery physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since April 2, 2021.
## Identity
- **NPI:** 1366021966 (Entity type: Individual)
- **Enumerated:** April 2, 2021
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 2026000949 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 660 S EUCLID AVE # 82332909, Saint Louis, MO 63110-1010
- **Phone:** (314) 514-3500
## 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:** Washington University (NPI 1679516033, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Georgia School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** July 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1366021966) · Data from the CMS NPPES public registry.