Megan Williams, LCSW
Social Worker · Crystal Lake, IL
Megan Williams, LCSW is a social worker with a practice address in Crystal Lake, Illinois, and NPI 1386031128, issued on Apr 20, 2015. Check the license (Illinois 149022746, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Megan Williams
- Credential
- LCSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- 149022746 IL
Self-reported in NPPES; status is on the state search - Practice location
- 333 Commerce Dr Ste 600, Crystal Lake, IL 60014
- Phone
- (779) 356-4095
- Enumerated
- Apr 20, 2015
- Record last updated
- Mar 9, 2025
- Fax
- (779) 356-4121
- Medicare enrollment
- Enrolled (PECOS I20250421002293); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest social worker records → All 5,881 in Illinois → Look up another NPI →
Verify Megan Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 149022746Check 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
- Reasons Health, PLLCCrystal Lake, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Megan Williams among 5,881 social worker records in Illinois
Megan Williams, LCSW is one of 5,881 social worker records with a practice address in Illinois. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 16% of them.
- NPI issued2015 · 16% of these records are older, 80% newer
- In a Medicare fileYes · 3% of these records are
- In the CMS Doctors and Clinicians fileYes · 5% of these records are
- Graduated2018 · median 2018 among the 300 with a school on file
- Record last updated2025 · 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 104100000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 social worker records list a practice address in Crystal Lake
They are 63 of the 1,442 NPPES records with a practice address in Crystal Lake, and 5,881 social worker records in Illinois.
All 5,881 in Illinois → Every provider in Crystal Lake → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Kimberly BoersmaCrystal Lake, IL 600141235389487
- Steven CafculesCrystal Lake, IL 600141689824831
- Cara DefriscoCrystal Lake, IL 600141780069682
- Kathleen Deroche, LCSWCrystal Lake, IL 600141528067824
- Ellen Erlichman, LCSWCrystal Lake, IL 600141932288115
- Gary Gruebnau, LSW MASTERSCrystal Lake, IL 600141295873859
- Amy LancasterCrystal Lake, IL 600141205215639
- James Messerschmidt, LCSWCrystal Lake, IL 600141497754683
Common questions
What is Megan Williams, LCSW's NPI number?
Megan Williams, LCSW's National Provider Identifier (NPI) is 1386031128, issued on Apr 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Megan Williams, LCSW located?
The NPPES record lists a practice address at 333 Commerce Dr Ste 600, Crystal Lake, IL, 60014. Phone: (779) 356-4095. Providers update this record themselves, so call before visiting.
How can I verify Megan Williams, LCSW's license?
NPPES lists Illinois license number 149022746, 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.
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.