Walter Leighton Clark, LCSW
Clinical Social Worker · Arlington Heights, IL
Walter Leighton Clark, LCSW is a clinical social worker with a practice address in Arlington Heights, Illinois, and NPI 1730301318, issued on May 3, 2007. Check the license with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Walter Leighton Clark
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- Practice location
- 1845 E Rand RD, Arlington Heights, IL 60004
- Phone
- (847) 259-3555
- Enumerated
- May 3, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (847) 259-5124
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 13,637 in Illinois → Look up another NPI →
Also registered at 1845 E Rand RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Alvaro, LPCProfessional Counselor1336835453
- Mitchell Kupferberg, MSW, LCSWMental Health Counselor1295156834
- Steffanie Meyer, LPCMental Health Counselor1588372874
- Michael Schulewitz, LPCProfessional Counselor1427607878
- Steven Uhrik, MSWClinical Social Worker1881001725
Verify Walter Leighton Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois 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
Walter Leighton Clark among 13,637 clinical social worker records in Illinois
Walter Leighton Clark, LCSW 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 not. Its NPI, issued in 2007, is newer than 10% of them.
- NPI issued2007 · 10% of these records are older, 80% newer
- In a Medicare fileNo · 14% of these records are
- In the CMS Doctors and Clinicians fileNo · 21% of these records are
- Record last updated2007 · 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).
119 clinical social worker records list a practice address in Arlington Heights
They are 119 of the 2,697 NPPES records with a practice address in Arlington Heights, and 13,637 clinical social worker records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 13,637 in Illinois → Every provider in Arlington Heights → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Steven Besefske, LCSWArlington Hts, IL 600041285748210
- Sharon Bloch, LCSWArlington Heights, IL 600041447227277
- Diane Blumenthal, MSW, LCSWArlington Heights, IL 600041629117007
- Donna Claffey, M.S.W., L.C.S.W.Arlington Hts, IL 600041336215243
- Marie Duetsch, MSWArlington Hts, IL 600041457490203
- Judith Franklin, LCSWArlington Heights, IL 600041689745788
- Jennifer Henry, LCSWArlington Heights, IL 600041306871546
- Deborah Lancaster, L.C.S.W.Arlington Heights, IL 600041649283201
Common questions
What is Walter Leighton Clark, LCSW's NPI number?
Walter Leighton Clark, LCSW's National Provider Identifier (NPI) is 1730301318, issued on May 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Walter Leighton Clark, LCSW located?
The NPPES record lists a practice address at 1845 E Rand RD, Arlington Heights, IL, 60004. Phone: (847) 259-3555. Providers update this record themselves, so call before visiting.
How can I verify Walter Leighton Clark, LCSW's license?
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. 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.