DR. THANH TAM NGUYEN-LOUIE PHD
NPI 1659866390
Psychologist in Catonsville, MD
About Dr. Thanh Tam Nguyen-louie Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THANH TAM NGUYEN-LOUIE PHD (NPI 1659866390) is an individual psychologist in Catonsville, Maryland, licensed in Maryland (06548) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Thanh Tam Nguyen-louie Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Thanh Tam Nguyen-louie reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Miami, FL 33130
- Reassigned Medicare billing, District of Columbia enrollment
- 1,424 clinicians in this Medicare group
San Jose, CA 95113
- Reassigned Medicare billing, California enrollment
- 3,139 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CATONSVILLE, MD 21228
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 Thanh Tam Nguyen-louie's NPI number?
The NPI number for Thanh Tam Nguyen-louie is 1659866390. It was assigned to this individual provider in the NPPES registry on June 26, 2018. The provider is also known as Tam Nguyen-Louie Phd.
Where is Thanh Tam Nguyen-louie located?
Thanh Tam Nguyen-louie practices at 1009 Frederick Rd, Catonsville, MD 21228. The listed phone number is (443) 355-7572.
What is Thanh Tam Nguyen-louie's specialty?
The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.
Is Thanh Tam Nguyen-louie enrolled in Medicare?
Yes. Thanh Tam Nguyen-louie is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Thanh Tam Nguyen-louie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thanh Tam Nguyen-louie reassigns Medicare benefits to 2 organizations: Grow Healthcare Group PA (Miami, FL) and Grow Healthcare Group PC (San Jose, CA). 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 Thanh Tam Nguyen-louie'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 Thanh Tam Nguyen-louie was last updated on July 15, 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.