Thanh Tam Nguyen-Louie, PHD
Psychologist · Catonsville, MD
Thanh Tam Nguyen-Louie, PHD is a psychologist with a practice address in Catonsville, Maryland, and NPI 1659866390, issued on Jun 26, 2018. Check the license (Maryland 06548, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Thanh Tam Nguyen-Louie
- Credential
- PHD
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 06548 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1009 Frederick RD, Catonsville, MD 21228
- Phone
- (443) 355-7572
- Enumerated
- Jun 26, 2018
- Record last updated
- Jul 15, 2026
- Medicare enrollment
- Enrolled (PECOS I20251014000255); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychologist records → All 1,183 in Maryland → Look up another NPI →
Also registered at 1009 Frederick RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tamara Aviles, LCSW-C, MSWClinical Social Worker1699355420
- Diane Brumfield, LGPCProfessional Counselor1154963064
- Madeline Collins, LCSW-CClinical Social Worker1760887574
- Zoe Genkin, LMSWSocial Worker1457995805
- Rachel Kovacs, PSYDClinical Psychologist1821580655
- Nicole Lanciotti, LCPCProfessional Counselor1609464700
Verify Thanh Tam Nguyen-Louie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 06548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Thanh Tam Nguyen-Louie among 1,183 psychologist records in Maryland
Thanh Tam Nguyen-Louie, PHD is one of 1,183 psychologist records with a practice address in Maryland. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2018, is newer than 70% of them.
- NPI issued2018 · 70% of these records are older, 26% newer
- In a Medicare fileNo · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 14% of these records are
- Graduated2018 · median 1999 among the 167 with a school on file
- Record last updated2026 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 psychologist records list a practice address in Catonsville
They are 11 of the 1,023 NPPES records with a practice address in Catonsville, and 1,183 psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,183 in Maryland → Every provider in Catonsville → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Riley Benko, PSY.D.Catonsville, MD 212281063996247
- Justine Bradshaw, PSY.D.Catonsville, MD 212281346167400
- Omega Broderick, PSYDCatonsville, MD 212281487570859
- Grover Foehlinger, PH.D.Catonsville, MD 212281750422770
- Dara Grosberg, PSYDCatonsville, MD 212281447176730
- William Hug, PH DBaltimore, MD 212281972645554
- Clinton Lewin, PSYDCatonsville, MD 212281194245589
- Patricia May, PHDCatonsville, MD 212281710165527
Common questions
What is Thanh Tam Nguyen-Louie, PHD's NPI number?
Thanh Tam Nguyen-Louie, PHD's National Provider Identifier (NPI) is 1659866390, issued on Jun 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Thanh Tam Nguyen-Louie, PHD located?
The NPPES record lists a practice address at 1009 Frederick RD, Catonsville, MD, 21228. Phone: (443) 355-7572. Providers update this record themselves, so call before visiting.
How can I verify Thanh Tam Nguyen-Louie, PHD's license?
NPPES lists Maryland license number 06548, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.