Mari Mortensen, LCSW
Clinical Social Worker · Darien, IL
Mari Mortensen, LCSW is a clinical social worker with a practice address in Darien, Illinois, and NPI 1578276770, issued on Jan 3, 2023. 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
- Mari Mortensen
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- Practice location
- 9265 Waterfall Glen Blvd, Darien, IL 60561
- Phone
- (708) 650-4356
- Enumerated
- Jan 3, 2023
- Record last updated
- Jul 31, 2024
- Medicare enrollment
- Enrolled (PECOS I20240806000961); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 13,637 in Illinois → Look up another NPI →
Verify Mari Mortensen 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
Mari Mortensen among 13,637 clinical social worker records in Illinois
Mari Mortensen, 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 2023, is newer than 81% of them.
- NPI issued2023 · 81% of these records are older, 13% newer
- In a Medicare fileNo · 14% of these records are
- In the CMS Doctors and Clinicians fileYes · 21% of these records are
- Graduated1981 · median 2010 among the 2,895 with a school on file
- Record last updated2024 · 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).
9 clinical social worker records list a practice address in Darien
They are 9 of the 389 NPPES records with a practice address in Darien, 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 Darien → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Michele Clark, LCSWDarien, IL 605611164772224
- Maria JandakDarien, IL 605611871177691
- Esther Kim, LCSWDarien, IL 605611326791112
- Christine Manuel, LCSWDarien, IL 605611750812111
- Kenneth MarkovicDarien, IL 605611972299568
- Christy Pitol, LCSWDarien, IL 605611013648955
- Ashley Rosales, MSW LCSWDarien, IL 605611538604202
- Taylor SandersDarien, IL 605611174139638
Common questions
What is Mari Mortensen, LCSW's NPI number?
Mari Mortensen, LCSW's National Provider Identifier (NPI) is 1578276770, issued on Jan 3, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Mari Mortensen, LCSW located?
The NPPES record lists a practice address at 9265 Waterfall Glen Blvd, Darien, IL, 60561. Phone: (708) 650-4356. Providers update this record themselves, so call before visiting.
How can I verify Mari Mortensen, 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.