Marielle Johnson, LCSW
Clinical Social Worker · Hamden, CT
Marielle Johnson, LCSW is a clinical social worker with a practice address in Hamden, Connecticut, and NPI 1821512260, issued on Jul 27, 2017. Check the license (Connecticut 010590, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marielle Johnson
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 010590 CT
Self-reported in NPPES; status is on the state search - Practice location
- 375 Mather St Ste 1, Hamden, CT 06514
- Phone
- (203) 601-2775
- Enumerated
- Jul 27, 2017
- Record last updated
- Mar 2, 2026
- Fax
- (203) 601-2775
- Medicare enrollment
- Enrolled (PECOS I20190611000816); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 7,729 in Connecticut → Look up another NPI →
Verify Marielle Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 010590Check 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
- New Leaf Counseling Center LLCHamden, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marielle Johnson among 7,729 clinical social worker records in Connecticut
Marielle Johnson, LCSW is one of 7,729 clinical social worker records with a practice address in Connecticut. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 58% of them.
- NPI issued2017 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 23% of these records are
- Graduated2017 · median 2009 among the 1,784 with a school on file
- Record last updated2026 · 59% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
158 clinical social worker records list a practice address in Hamden
They are 158 of the 1,410 NPPES records with a practice address in Hamden, and 7,729 clinical social worker records in Connecticut.
All 7,729 in Connecticut → Every provider in Hamden → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Chaundra Bailey, LCSWHamden, CT 065141164433942
- Jennifer Barba, LCSWHamden, CT 065141184647430
- Daniel Cohen, LCSW,MSW,MDIV,MSJ,BAHamden, CT 065141366563108
- Marguerite Gentile, L.C.S.WHamden, CT 065141659582021
- Cheryl Green, LCSWHamden, CT 065141518029602
- Laurie Hearrin, LCSWHamden, CT 065141386618726
- Nicole Kikosicki, LCSWHamden, CT 065141811171903
- Gina Macolino Petrucci, L.C.S.WHamden, CT 065141427494574
Common questions
What is Marielle Johnson, LCSW's NPI number?
Marielle Johnson, LCSW's National Provider Identifier (NPI) is 1821512260, issued on Jul 27, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Marielle Johnson, LCSW located?
The NPPES record lists a practice address at 375 Mather St Ste 1, Hamden, CT, 06514. Phone: (203) 601-2775. Providers update this record themselves, so call before visiting.
How can I verify Marielle Johnson, LCSW's license?
NPPES lists Connecticut license number 010590, as entered by the provider. Search the Connecticut 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.