Katilyn Williamson, MSW
Social Worker · Evansville, IN
Katilyn Williamson, MSW is a social worker with a practice address in Evansville, Indiana, and NPI 1427773464, issued on Oct 11, 2022. Check the license (Indiana 99114665A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katilyn Williamson
- Credential
- MSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- 99114665A IN
Self-reported in NPPES; status is on the state search - Practice location
- 415 Mulberry St, Evansville, IN 47713
- Phone
- (812) 432-7791
- Enumerated
- Oct 11, 2022
- Record last updated
- Oct 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20251024001083); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest social worker records → All 2,007 in Indiana → Look up another NPI →
Also registered at 415 Mulberry St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathryn Adams, MSW LCSWClinical Social Worker1568473023
- Allisyn Alati, LCSWCounselor1720790355
- Mary AullSocial Worker1952113607
- Beth Barchet, MSW LCSWClinical Social Worker1902913320
- Sarah Browers, LSWSocial Worker1366154999
- Elizabeth Combs, LSWSocial Worker1629886056
Verify Katilyn Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 99114665ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Southwestern Behavioral Healthcare IncMount Vernon, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katilyn Williamson among 2,007 social worker records in Indiana
Katilyn Williamson, MSW is one of 2,007 social worker records with a practice address in Indiana. 4% 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 56% of them.
- NPI issued2022 · 56% of these records are older, 37% newer
- In a Medicare fileYes · 4% of these records are
- In the CMS Doctors and Clinicians fileYes · 7% of these records are
- Graduated2022 · median 2019 among the 133 with a school on file
- Record last updated2022 · 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
123 social worker records list a practice address in Evansville
They are 123 of the 4,352 NPPES records with a practice address in Evansville, and 2,007 social worker records in Indiana.
All 2,007 in Indiana → Every provider in Evansville → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Phyllis Cooling, CSWEvansville, IN 477131912073123
- Emily Cox, MSWEvansville, IN 477131639737430
- Cedalia Ellis, LSWEvansville, IN 477131043776214
- Alicia Fish, MSWEvansville, IN 477131427392364
- Tresa Fletcher, MSWEvansville, IN 477131972847804
- Jason Hays, LCSWEvansville, IN 477131659631836
- Jackie Hughes, MSWEvansville, IN 477131841754835
- Diane Ice, MSWEvansville, IN 477131962037655
Common questions
What is Katilyn Williamson, MSW's NPI number?
Katilyn Williamson, MSW's National Provider Identifier (NPI) is 1427773464, issued on Oct 11, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Katilyn Williamson, MSW located?
The NPPES record lists a practice address at 415 Mulberry St, Evansville, IN, 47713. Phone: (812) 432-7791. Providers update this record themselves, so call before visiting.
How can I verify Katilyn Williamson, MSW's license?
NPPES lists Indiana license number 99114665A, as entered by the provider. Search the Indiana 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.
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.