Marissa Happ, LCSW, DSW
NPI 1457988693 · Clinical Social Worker · Aurora, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Happ, LCSW, DSW is a Clinical Social Worker provider in Aurora, IL (NPI 1457988693).
Provider details
- NPI number
- 1457988693
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW, DSW
- Sex
- Female
- Sole proprietor
- No
- License
- 149.016435 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-26
- Last updated
- 2020-03-26
- Certified
- 2020-03-26
Frequently asked questions
- What is Marissa Happ's NPI number?
- Marissa Happ's National Provider Identifier (NPI) is 1457988693, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Happ's specialty?
- Marissa Happ is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marissa Happ located?
- Marissa Happ's practice location on file with NPPES is 412 N. Lake St., Aurora, IL 60506-4106.
- What is Marissa Happ's phone number?
- The practice phone number listed in the NPPES registry for Marissa Happ is (630) 896-2337.
- Does Marissa Happ accept Medicare?
- Marissa Happ is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Happ's NPI active?
- Yes — Marissa Happ's NPI (1457988693) is active in the NPPES registry as of the last update on 2020-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.