DR. THIEN T NGUYEN O.D.
NPI 1144605452
Optometrist - Corneal and Contact Management in Norman, OK
About Dr. Thien T Nguyen O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THIEN T NGUYEN O.D. (NPI 1144605452) is an individual corneal and contact management provider in Norman, Oklahoma, licensed in Oklahoma (2863) and active in the NPI registry since July 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Oklahoma City, and is a graduate of Other (2015).
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
Dr. Thien T Nguyen O.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 Reassignments
2Medicare enrollment records show Thien Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Norman, OK 73069
- Reassigned Medicare billing, Oklahoma enrollment
- 5 clinicians in this Medicare group
Oklahoma City, OK 73132
- Reassigned Medicare billing, Oklahoma enrollment
- 5 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73072 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.
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 1144605452. It was assigned to this individual provider in the NPPES registry on July 28, 2015.
Where is Thien Nguyen located?
Thien Nguyen practices at 3960 W Tecumseh Rd Ste 110, Norman, OK 73072. The listed phone number is (405) 328-8100.
What is Thien Nguyen's specialty?
The primary specialty registered for this NPI is Optometrist, specializing in Corneal and Contact Management, with taxonomy code 152WC0802X.
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 organizations bill Medicare for Thien Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thien Nguyen reassigns Medicare benefits to 2 organizations: Butcher Optical II, PC (Norman, OK) and Butcher Optical III, Inc (Oklahoma City, OK). Each 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 Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 14 other insurers 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.
When was this NPI record last updated?
The NPPES record for Thien Nguyen was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.
# Dr. Thien T Nguyen, O.D. · NPI 1144605452
Corneal and Contact Management provider in Norman, Oklahoma. Individual provider, active in the CMS NPPES registry since July 28, 2015.
## Identity
- **NPI:** 1144605452 (Entity type: Individual)
- **Enumerated:** July 28, 2015
- **Primary specialty:** Optometrist - Corneal and Contact Management · taxonomy 152WC0802X
- **State license:** 2863 (Oklahoma)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3960 W TECUMSEH RD STE 110, Norman, OK 73072-1787
- **Phone:** (405) 328-8100 · **Fax:** (405) 321-5503
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Butcher Optical II, PC (NPI 1750406997, Norman, OK); Butcher Optical III, Inc (NPI 1043588791, Oklahoma City, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** September 30, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1144605452) · Data from the CMS NPPES public registry.