Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Margaret L Hagan, PHD

Individual provider Psychologist · NPI 1104973411

Dr. Margaret L Hagan, PHD is a Clinical Psychologist in Slidell, Louisiana. Graduated from University of South Carolina School of Medicine in 1982, 44 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Louisiana.

Years since qualifying
44
Trained at
University of South Carolina School of Medicine
Licensed in
LA
In the registry since
2007
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

119 Village St Ste A
Slidell, LA 70458
Phone: (985) 718-5858
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X (LA)
Psychologist Taxonomy 103T00000X · Licence 441 (LA)

Record details

NPI number1104973411
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJanuary 5, 2007
Last updated in NPPESFebruary 27, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolUNIVERSITY OF SOUTH CAROLINA SCHOOL OF MEDICINE
Graduated 1982 (44 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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