OrganizationActive
Happy Human, LLC
NPI 1013488170 · Clinical Psychologist · Westmont, IL
Happy Human, LLC is a Clinical Psychologist organization in Westmont, IL (NPI 1013488170).
Provider details
- NPI number
- 1013488170
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Sandra Pennway, Billing, Credentialing Manager(708) 409-5066
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(67/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
825 N Cass Ave Ste 109
Westmont, IL 60559-6401
Phone: (630) 447-9737
Street-level locationGet directions
Mailing address
Po Box 3591
Oak Brook, IL 60522-3591
Other names (DBA / former)
- Doing business as
- Eleni S. Liossis, Psy.d.
Registry dates
- Enumerated
- 2018-12-16
- Last updated
- 2018-12-16
Frequently asked questions
- What is Happy Human, LLC's NPI number?
- Happy Human, LLC's National Provider Identifier (NPI) is 1013488170, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Happy Human, LLC?
- Happy Human, LLC is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Happy Human, LLC located?
- Happy Human, LLC's practice location on file with NPPES is 825 N Cass Ave Ste 109, Westmont, IL 60559-6401.
- What is Happy Human, LLC's phone number?
- The practice phone number listed in the NPPES registry for Happy Human, LLC is (630) 447-9737.
- Who is the authorized official for Happy Human, LLC?
- The authorized official listed on Happy Human, LLC's NPPES record is Sandra Pennway, Billing, Credentialing Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Happy Human, LLC's NPI active?
- Yes — Happy Human, LLC's NPI (1013488170) is active in the NPPES registry as of the last update on 2018-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.