TAMMY NGUYEN DO MD
NPI 1013596436
Internal Medicine - Nephrology in Covington, LA
About Tammy Nguyen Do Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TAMMY NGUYEN DO MD (NPI 1013596436) is an individual nephrology provider in Covington, Louisiana, licensed in Louisiana (352493) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
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)
Tammy Nguyen Do Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Tammy Do reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Covington, LA 70433
- Reassigned Medicare billing, Louisiana enrollment
- 4 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 70433 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 3
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 Tammy Do's NPI number?
The NPI number for Tammy Do is 1013596436. It was assigned to this individual provider in the NPPES registry on April 4, 2021.
Where is Tammy Do located?
Tammy Do practices at 217 Cherokee Rose Ln, Covington, LA 70433. The listed phone number is (985) 893-0911.
What is Tammy Do's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Tammy Do enrolled in Medicare?
Yes. Tammy Do is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Tammy Do's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Do reassigns Medicare benefits to David R Powers MD Apmc (Covington, 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 Tammy Do's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tammy Do accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan list Tammy Do 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 Tammy Do was last updated on June 30, 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.
# Tammy Nguyen Do, MD · NPI 1013596436
Nephrology physician in Covington, Louisiana. Individual provider, active in the CMS NPPES registry since April 4, 2021.
## Identity
- **NPI:** 1013596436 (Entity type: Individual)
- **Enumerated:** April 4, 2021
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 352493 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 217 CHEROKEE ROSE LN, Covington, LA 70433-7201
- **Phone:** (985) 893-0911
## 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:** David R Powers MD Apmc (NPI 1316977028, Covington, LA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 30, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1013596436) · Data from the CMS NPPES public registry.