Margaret L. Hagan, PH.D.
Psychologist · Slidell, LA
Margaret L. Hagan, PH.D. is a psychologist with a practice address in Slidell, Louisiana, and NPI 1104973411, issued on Jan 5, 2007. Check the license (Louisiana 441, as entered in NPPES) with the Louisiana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Margaret L. Hagan
- Credential
- PH.D.
- Primary taxonomy
- Psychologist 103T00000X
- License number
- 441 LA
Self-reported in NPPES; status is on the state search - Practice location
- 119 Village Street, Slidell, LA 70458
- Phone
- (985) 718-5858
- Enumerated
- Jan 5, 2007
- Record last updated
- Feb 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050629000459); accepts Medicare assignment
- Medical or professional school
- University Of South Carolina School Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest psychologist records → All 194 in Louisiana → Look up another NPI →
Verify Margaret L. Hagan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license 441Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Margaret L. Hagan among 194 psychologist records in Louisiana
Margaret L. Hagan, PH.D. is one of 194 psychologist records with a practice address in Louisiana. 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 2007, is newer than 24% of them.
- NPI issued2007 · 24% of these records are older, 59% newer
- In a Medicare fileNo · 8% of these records are
- In the CMS Doctors and Clinicians fileYes · 10% of these records are
- Graduated1982 · median 2008 among the 20 with a school on file
- Record last updated2014 · 68% 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychologist providers in Louisiana
There are 194 psychologist records in Louisiana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 194 in Louisiana → Every provider in Slidell → Psychologist nationwide →
The 8 psychologist records with the nearest ZIP codes
- Barbara Ballin, PH.D.Ponchatoula, LA 704541598954547
- John Hebert, PHDMandeville, LA 704481801008974
- Colin McCormick, PH.D.Mandeville, LA 704481184767758
- Veena Poole, PSYCHOLOGISTMandeville, LA 704481629413919
- Bailey CartwrightMadisonville, LA 704471740026616
- Avery Boras, MDMandeville, LA 704701609091719
- Kelley Francis, PHDMandeville, LA 704701689899718
- Chris Leblanc, PHDMandeville, LA 704701518182633
Common questions
What is Margaret L. Hagan, PH.D.'s NPI number?
Margaret L. Hagan, PH.D.'s National Provider Identifier (NPI) is 1104973411, issued on Jan 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Margaret L. Hagan, PH.D. located?
The NPPES record lists a practice address at 119 Village Street, Slidell, LA, 70458. Phone: (985) 718-5858. Providers update this record themselves, so call before visiting.
How can I verify Margaret L. Hagan, PH.D.'s license?
NPPES lists Louisiana license number 441, as entered by the provider. Search the Louisiana 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.