NPPES file of Aug 9, 2026

David Matthew Nielsen, LCSW

Mental Health Counselor · Baton Rouge, LA

David Matthew Nielsen, LCSW is a mental health counselor with a practice address in Baton Rouge, Louisiana, and NPI 1386129963, issued on Sep 28, 2018. Check the license (Louisiana 13284, 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
1386129963
Name
David Matthew Nielsen
Credential
LCSW
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
13284 LA
Self-reported in NPPES; status is on the state search
Practice location
9938 Airline Hwy, Baton Rouge, LA 70816
Phone
(225) 663-2881
Enumerated
Sep 28, 2018
Record last updated
Sep 28, 2018 (not updated in 8 years: call before relying on the address or phone)
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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Also registered at 9938 Airline Hwy

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

  1. Sean BruneSocial Worker1376190819
  2. Cynthia Fussell, APRNFamily Nurse Practitioner1194916163
  3. Mary Gibson, LMSWMental Health Counselor1922583434
  4. Gopinath Gopalam, MSMedical Art Specialist/Technologist1376025973
  5. Haley Watts, CSWCase Manager/Care Coordinator1861199739

Verify David Matthew Nielsen 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 13284
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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619 mental health counselor records list a practice address in Baton Rouge

They are 619 of the 12,526 NPPES records with a practice address in Baton Rouge, and 5,286 mental health counselor records in Louisiana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other mental health counselor records in Louisiana

  1. Alexis Aaron, MHPAlexandria, LA1801363676
  2. Jamarcus Aaron, BAASCThibodaux, LA1396268108
  3. Audrey Aaron-WilliamsZachary, LA1508314337
  4. Ann Abbrecht, LPNCCNew Orleans, LA1003168956
  5. Mary Abel, LCSWBaton Rouge, LA1255664157
  6. Michelle AbneyMinden, LA1861992034
  7. Fredrick AbrahamLake Charles, LA1104339589
  8. Carlye Abrams, LMFTShreveport, LA1770510323
  9. Michael AbramsMonroe, LA1366807018
  10. Ashley Adams, LMSWBossier City, LA1457724577

Common questions

What is David Matthew Nielsen, LCSW's NPI number?

David Matthew Nielsen, LCSW's National Provider Identifier (NPI) is 1386129963, issued on Sep 28, 2018. An NPI identifies a provider in billing; it is not a license.

Where is David Matthew Nielsen, LCSW located?

The NPPES record lists a practice address at 9938 Airline Hwy, Baton Rouge, LA, 70816. Phone: (225) 663-2881. Providers update this record themselves, so call before visiting.

How can I verify David Matthew Nielsen, LCSW's license?

NPPES lists Louisiana license number 13284, 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.