NPPES file of Aug 9, 2026

Arvid Leland Mortensen, LICSW

Clinical Social Worker · Winona, MN

Arvid Leland Mortensen, LICSW is a clinical social worker with a practice address in Winona, Minnesota, and NPI 1508191677, issued on Oct 7, 2009. Check the license (Minnesota 8588, as entered in NPPES) with the Minnesota 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
1508191677
Name
Arvid Leland Mortensen
Credential
LICSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
8588 MN
Self-reported in NPPES; status is on the state search
Practice location
111 Market St, Winona, MN 55987
Phone
(507) 452-5033
Enumerated
Oct 7, 2009
Record last updated
Oct 7, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(507) 452-5183
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 111 Market St

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

  1. Robert Casselman, PH.D.Clinical Psychologist1477865236
  2. Mary Chase Borgen, LICSWClinical Social Worker1295750438
  3. Ned Crowley, DCChiropractor1962536045
  4. Mario Einsman, M.S.Clinical Social Worker1336286202
  5. Morgan GulbransonMarriage & Family Therapist1568087690
  6. Joshua Mueller, LADCAddiction (Substance Use Disorder) Counselor1356710891

Verify Arvid Leland Mortensen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
    Search for license 8588
    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 Minnesota 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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Arvid Leland Mortensen among 6,609 clinical social worker records in Minnesota

Arvid Leland Mortensen, LICSW is one of 6,609 clinical social worker records with a practice address in Minnesota. 24% 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 2009, is newer than 21% of them.

  • NPI issued2009 · 21% of these records are older, 76% newer
  • In a Medicare fileNo · 24% of these records are
  • In the CMS Doctors and Clinicians fileNo · 31% of these records are
  • Record last updated2009 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

27 clinical social worker records list a practice address in Winona

They are 27 of the 876 NPPES records with a practice address in Winona, and 6,609 clinical social worker records in Minnesota. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Andrew Bohlman, LICSWWinona, MN 559871740611730
  2. Mary Chase Borgen, LICSWWinona, MN 559871295750438
  3. Mario Einsman, M.S.Winona, MN 559871336286202
  4. Gary Flynn, LICSWWinona, MN 559871710046669
  5. Dorothy Herzing, LICSWWinona, MN 559871659432912
  6. Ann Lichliter, LICSWWinona, MN 559871013190743
  7. Katherine Meyers, LICSWWinona, MN 559871477800456
  8. Andreen Midthune, LICSWWinona, MN 559871538342746

Common questions

What is Arvid Leland Mortensen, LICSW's NPI number?

Arvid Leland Mortensen, LICSW's National Provider Identifier (NPI) is 1508191677, issued on Oct 7, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Arvid Leland Mortensen, LICSW located?

The NPPES record lists a practice address at 111 Market St, Winona, MN, 55987. Phone: (507) 452-5033. Providers update this record themselves, so call before visiting.

How can I verify Arvid Leland Mortensen, LICSW's license?

NPPES lists Minnesota license number 8588, as entered by the provider. Search the Minnesota 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.