Ellen Ferris Williams, LCSW
Social Worker · Marshall, MN
Ellen Ferris Williams, LCSW is a social worker with a practice address in Marshall, Minnesota, and NPI 1710442546, issued on Feb 6, 2019. Check the license with the Minnesota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellen Ferris Williams
- Credential
- LCSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- 135841 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1212 E College Dr, Marshall, MN 56258
- Phone
- (507) 337-4920
- Enumerated
- Feb 6, 2019
- Record last updated
- Jan 30, 2025
- Medicare enrollment
- Enrolled (PECOS I20250214000729); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest social worker records → All 1,020 in Minnesota → Look up another NPI →
Also registered at 1212 E College Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Megan Benedict, LICSWMental Health Counselor1104480599
- Mark Bigaouette, LADCAddiction (Substance Use Disorder) Counselor1336704451
- Patrick Birisi, NPPsychiatric/Mental Health Nurse Practitioner1386459915
- Sonia Bly, MS, DCProfessional Counselor1245242536
- Brian Boersma, MSW, LICSWClinical Social Worker1205848553
- Jennifer Briest, LICSWClinical Social Worker1780006858
Verify Ellen Ferris Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Minnesota board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Western Mental Health Center, Inc.Marshall, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ellen Ferris Williams among 1,020 social worker records in Minnesota
Ellen Ferris Williams, LCSW is one of 1,020 social worker records with a practice address in Minnesota. 10% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 48% of them.
- NPI issued2019 · 48% of these records are older, 48% newer
- In a Medicare fileYes · 10% of these records are
- In the CMS Doctors and Clinicians fileYes · 13% of these records are
- Graduated2018 · median 2015 among the 131 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Social Worker providers in Minnesota
There are 1,020 social worker records in Minnesota.
All 1,020 in Minnesota → Every provider in Marshall → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Mavis Gehant, CSW PIPMarshall, MN 562581538341433
- Joni Seitzer, MSW, LICSWMarshall, MN 562581497063945
- Te'Neil Lee, LGSW, LADCMontevideo, MN 562651215877493
- Beth Aponte, LICSWOlivia, MN 562771497818827
- Rhonda BeckmanOrtonville, MN 562781629301908
- Suzanne KleindlOrtonville, MN 562781720311004
- Leslie SmithOrtonville, MN 562781124351457
- Stephanie BrakemeierRenville, MN 562841104363829
Common questions
What is Ellen Ferris Williams, LCSW's NPI number?
Ellen Ferris Williams, LCSW's National Provider Identifier (NPI) is 1710442546, issued on Feb 6, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Ferris Williams, LCSW located?
The NPPES record lists a practice address at 1212 E College Dr, Marshall, MN, 56258. Phone: (507) 337-4920. Providers update this record themselves, so call before visiting.
How can I verify Ellen Ferris Williams, LCSW's license?
Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.
What is Ellen Ferris Williams, LCSW's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.
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.