Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Marissa J Happ, LCSW, DSW

Individual provider Clinical Social Worker · NPI 1457988693

Dr. Marissa J Happ, LCSW, DSW is a Clinical Social Worker in Aurora, Illinois. Qualified in 2000, 26 years ago. Practices with Gateway Psychological Services Ltd, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
26
Licensed in
IL
In the registry since
2020
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

412 N Lake St
Aurora, IL 60506-4106
Phone: (630) 896-2337
Fax: (630) 896-3515
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149.016435 (IL)

Record details

NPI number1457988693
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW , DSW
Sole proprietorNo
NPI enumeratedMarch 26, 2020
Last updated in NPPESMarch 26, 2020
Certification dateMarch 26, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Gateway Psychological Services Ltd — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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