DR. JOHN TU THIEN M.D.
NPI 1144336652
Internal Medicine in Luling, LA
About Dr. John Tu Thien M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN TU THIEN M.D. (NPI 1144336652) is an individual internal medicine provider in Luling, Louisiana, licensed in Louisiana (020686) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Ochsner Medical Center Acute, and is a graduate of Louisiana State University School Of Medicine In New Orleans (1989).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 8
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. John Tu Thien M.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 Reassignment
Medicare enrollment records show John Thien reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Luling, LA 70070
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ochsner Medical Center Acute
Acute Care Hospitals · New Orleans, LASlidell Memorial Hospital
Acute Care Hospitals · Slidell, LASt Bernard Parish Hospital
Acute Care Hospitals · Chalmette, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70070 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 5
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 John Thien's NPI number?
The NPI number for John Thien is 1144336652. It was assigned to this individual provider in the NPPES registry on August 21, 2006.
Where is John Thien located?
John Thien practices at 843 Milling Ave, Luling, LA 70070. The listed phone number is (504) 271-8952.
What is John Thien's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Thien enrolled in Medicare?
Yes. John Thien 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 John Thien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Thien reassigns Medicare benefits to Ochsner Clinic LLC (Luling, LA). 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 John Thien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Thien accept?
Health plans from Blue Cross and Blue Shield of Louisiana, CHRISTUS Health Plan and HMO Louisiana list John Thien 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 John Thien affiliated with any hospitals?
According to CMS data, John Thien is affiliated with Ochsner Medical Center Acute, Slidell Memorial Hospital and St Bernard Parish Hospital.
When was this NPI record last updated?
The NPPES record for John Thien was last updated on March 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. John Tu Thien, M.D. · NPI 1144336652
Internal Medicine physician in Luling, Louisiana. Individual provider, active in the CMS NPPES registry since August 21, 2006.
## Identity
- **NPI:** 1144336652 (Entity type: Individual)
- **Enumerated:** August 21, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 020686 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 843 MILLING AVE, Luling, LA 70070-4442
- **Phone:** (504) 271-8952 · **Fax:** (504) 278-4692
## 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:** Ochsner Clinic LLC (NPI 1922940899, Luling, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Louisiana State University School Of Medicine In New Orleans, class of 1989
## Record status
- **NPPES last updated:** March 18, 2011
- **Other identifiers:** Medicare UPIN E81971 (LA); Medicaid 1966266 (LA); Medicare ID-Type Unspecified 5CS45 (LA); and 5 more
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Source: [NPI Profile](https://npiprofile.com/npi/1144336652) · Data from the CMS NPPES public registry.