NPPES file of Aug 9, 2026

Walker Elton Marsh, PHD LMFT

Addiction (Substance Use Disorder) Counselor · Slidell, LA

Walker Elton Marsh, PHD LMFT is an addiction (substance use disorder) counselor with a practice address in Slidell, Louisiana, and NPI 1992895635, issued on Oct 13, 2006. Check the license (Louisiana MFT-345, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992895635
Name
Walker Elton Marsh
Credential
PHD LMFT
Primary taxonomy
Addiction (Substance Use Disorder) Counselor 101YA0400X
License number
MFT-345 LA
Self-reported in NPPES; status is on the state search
Practice location
85 Whisperwood Blvd, Slidell, LA 70458
Phone
(985) 661-0560
Enumerated
Oct 13, 2006
Record last updated
Sep 11, 2025
Fax
(985) 781-5395
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest addiction (substance use disorder) counselor records → All 933 in Louisiana → Look up another NPI →

Also registered at 85 Whisperwood Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Angie Deharde, PTPhysical Therapist1114962917
  2. Gary Dragon, PTPhysical Therapist1508807405
  3. Joy Naquin, LCSWClinical Social Worker1093072761
  4. Gertrude Parker, OCCUPATIONAL THERAPIOccupational Therapist1689728958
  5. Vicki Scanlan-Leishman, LCSWClinical Social Worker1780941559

Verify Walker Elton Marsh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
    Search for license MFT-345    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Louisiana license search

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Walker Elton Marsh among 933 addiction (substance use disorder) counselor records in Louisiana

Walker Elton Marsh, PHD LMFT is one of 933 addiction (substance use disorder) counselor records with a practice address in Louisiana. under 1% 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 2006, is newer than 0% of them.

  • NPI issued2006 · 0% of these records are older, 93% newer
  • In a Medicare fileNo · under 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction (Substance Use Disorder) Counselor providers in Louisiana

There are 933 addiction (substance use disorder) counselor records in Louisiana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 933 in Louisiana → Every provider in Slidell → Addiction (Substance Use Disorder) Counselor nationwide →

The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes

  1. Teresa Bovia, RNSlidell, LA 704581851832513
  2. Lisa Ferguson, GSWSlidell, LA 704581972811347
  3. Jimmy Keller, CITSlidell, LA 704581386910016
  4. Jackie Lambert, MHS, CRC, CITSlidell, LA 704581093083891
  5. Velma AlbertRoseland, LA 704561396693131
  6. Maureen Bradshaw, LACMandeville, LA 704481316978661
  7. Blakely Brown-Warren, CACMandeville, LA 704481902230568
  8. Michael McShan, M.ED., LPC, LAC, NCCMandeville, LA 704481518389626

Common questions

What is Walker Elton Marsh, PHD LMFT's NPI number?

Walker Elton Marsh, PHD LMFT's National Provider Identifier (NPI) is 1992895635, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Walker Elton Marsh, PHD LMFT located?

The NPPES record lists a practice address at 85 Whisperwood Blvd, Slidell, LA, 70458. Phone: (985) 661-0560. Providers update this record themselves, so call before visiting.

How can I verify Walker Elton Marsh, PHD LMFT's license?

NPPES lists Louisiana license number MFT-345, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.