NPPES file of Aug 9, 2026

Sarah Ostrum, LSW

Clinical Social Worker · Rockford, IL

Sarah Ostrum, LSW is a clinical social worker with a practice address in Rockford, Illinois, and NPI 1386195634, issued on Oct 21, 2016. Check the license (Illinois 149.020422, as entered in NPPES) with the Illinois 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
1386195634
Name
Sarah Ostrum
Credential
LSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License numbers
149.020422 IL
150.015791 IL
129856-121 WI
Self-reported in NPPES; status is on the state search
Practice location
816 Featherstone RD, Rockford, IL 61107
Phone
(815) 227-0081
Enumerated
Oct 21, 2016
Record last updated
Dec 31, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(815) 387-5316
Medicare enrollment
Enrolled (PECOS I20211221001084); accepts Medicare assignment
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 13,637 in Illinois → Look up another NPI →

Also registered at 816 Featherstone RD

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

  1. Benjamin AllenPharmacist1043069503
  2. Jessica Berei, PHARMDAmbulatory Care Pharmacist1053986828
  3. Daniel Corredor, MDFamily Medicine Physician1528687324
  4. Yohannes Fre, MSN FNP-BCPrimary Care Nurse Practitioner1144971631
  5. Amanda Fruen, DNP, APRN,FNP-BCNurse Practitioner1952941833
  6. James Horvath, PHARM.D.Pharmacist1003911199

Verify Sarah Ostrum in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 149.020422    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 Illinois 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. Doctor ON Demand Professionals P CSpringfield, IL

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

Sarah Ostrum among 13,637 clinical social worker records in Illinois

Sarah Ostrum, LSW is one of 13,637 clinical social worker records with a practice address in Illinois. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 46% of them.

  • NPI issued2016 · 46% of these records are older, 50% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2015 · median 2010 among the 2,895 with a school on file
  • Record last updated2019 · 54% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

208 clinical social worker records list a practice address in Rockford

They are 208 of the 3,893 NPPES records with a practice address in Rockford, and 13,637 clinical social worker records in Illinois.

All 13,637 in Illinois → Every provider in Rockford → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Laura Allman, LCSWRockford, IL 611071881661023
  2. Janet Baker, LCSWRockford, IL 611071770651192
  3. Janet Beger, MSW, LCSW,Rockford, IL 611071861413122
  4. Janette Cosgrove, MSW, LCSWRockford, IL 611071740356765
  5. William Edleman, LCSWRockford, IL 611071346324936
  6. Kelly Finch, LCSWRockford, IL 611071013020635
  7. Ann James, MSW, LCSWRockford, IL 611071982776662
  8. Kelly Kalt, MSW, LCSWRockford, IL 611071063513513

Common questions

What is Sarah Ostrum, LSW's NPI number?

Sarah Ostrum, LSW's National Provider Identifier (NPI) is 1386195634, issued on Oct 21, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Ostrum, LSW located?

The NPPES record lists a practice address at 816 Featherstone RD, Rockford, IL, 61107. Phone: (815) 227-0081. Providers update this record themselves, so call before visiting.

How can I verify Sarah Ostrum, LSW's license?

NPPES lists Illinois license number 149.020422, as entered by the provider. Search the Illinois 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.