NPPES file of Aug 9, 2026

Michelle Tretter, LCSW

Clinical Social Worker · Grand Forks, ND

Michelle Tretter, LCSW is a clinical social worker with a practice address in Grand Forks, North Dakota, and NPI 1386305845, issued on Jan 6, 2022. Check the license (North Dakota 6457, as entered in NPPES) with the North Dakota board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1386305845
Name
Michelle Tretter
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License numbers
6457 ND
10126 MN
Self-reported in NPPES; status is on the state search
Practice location
860 S Columbia RD, Grand Forks, ND 58201
Phone
(017) 780-6697
Enumerated
Jan 6, 2022
Record last updated
Feb 3, 2023
Medicare enrollment
Enrolled (PECOS I20230321002801); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest clinical social worker records → All 566 in North Dakota → Look up another NPI →

Also registered at 860 S Columbia RD

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

  1. Kenneth Asogwa, M.D.Child & Adolescent Psychiatry Physician1376958397
  2. Ashok Bansal, MDPsychiatry Physician1861599649
  3. Jamie Boe, LCSWClinical Social Worker1679875991
  4. Rachel Dauksavage, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1336912096
  5. Charlotte Ewals, DNP, FNP-BCFamily Nurse Practitioner1508335274
  6. Ellen Feldman, MDPsychiatry Physician1831280841

Verify Michelle Tretter in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich North Dakota board licenses this profession
    Search for license 6457    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 North Dakota 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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Bills Medicare through one group practice

  1. Altru Health SystemGrand Forks, ND

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michelle Tretter among 566 clinical social worker records in North Dakota

Michelle Tretter, LCSW is one of 566 clinical social worker records with a practice address in North Dakota. 28% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 82% of them.

  • NPI issued2022 · 82% of these records are older, 12% newer
  • In a Medicare fileYes · 28% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2019 · median 2014 among the 213 with a school on file
  • Record last updated2023 · 40% 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 North Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

117 clinical social worker records list a practice address in Grand Forks

They are 117 of the 2,524 NPPES records with a practice address in Grand Forks, and 566 clinical social worker records in North Dakota.

All 566 in North Dakota → Every provider in Grand Forks → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Rachel Ambers, LICSWGrand Forks, ND 582011063453454
  2. Irene Berndt, LICSWGrand Forks, ND 582011457387268
  3. David Bialik, LICSWGrand Forks, ND 582011427014752
  4. Roberta Carson, MSW, LICSWGrand Forks, ND 582011972546000
  5. Kristina Cavalli, LICSWGrand Forks, ND 582011912092263
  6. Beth Hemming, LICSWGrand Forks, ND 582011326087107
  7. Roger Johnson, MSW, LICSWGrand Forks, ND 582011306880885
  8. Joann Olson, LICSWGrand Forks, ND 582011316039746

Common questions

What is Michelle Tretter, LCSW's NPI number?

Michelle Tretter, LCSW's National Provider Identifier (NPI) is 1386305845, issued on Jan 6, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Michelle Tretter, LCSW located?

The NPPES record lists a practice address at 860 S Columbia RD, Grand Forks, ND, 58201. Phone: (017) 780-6697. Providers update this record themselves, so call before visiting.

How can I verify Michelle Tretter, LCSW's license?

NPPES lists North Dakota license number 6457, as entered by the provider. Search the North Dakota 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. Medicare files from data.cms.gov. 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.