Mari Mortensen Lcsw PLLC
NPI 1780412403 · Clinical Social Worker · Oak Park, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mari Mortensen Lcsw PLLC is a Clinical Social Worker organization in Oak Park, IL (NPI 1780412403).
Provider details
- NPI number
- 1780412403
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Mari Mortensen, Owner(708) 650-4356
Specialties & taxonomies
Behavioral Health & Social Service Providers
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2024-07-24
- Last updated
- 2025-02-27
- Certified
- 2025-02-27
Frequently asked questions
- What is Mari Mortensen Lcsw PLLC's NPI number?
- Mari Mortensen Lcsw PLLC's National Provider Identifier (NPI) is 1780412403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mari Mortensen Lcsw PLLC?
- Mari Mortensen Lcsw PLLC is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mari Mortensen Lcsw PLLC located?
- Mari Mortensen Lcsw PLLC's practice location on file with NPPES is 101 N Marion St Ste 300, Oak Park, IL 60301-1023.
- What is Mari Mortensen Lcsw PLLC's phone number?
- The practice phone number listed in the NPPES registry for Mari Mortensen Lcsw PLLC is (708) 650-4356.
- Does Mari Mortensen Lcsw PLLC accept Medicare?
- Mari Mortensen Lcsw PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mari Mortensen Lcsw PLLC?
- The authorized official listed on Mari Mortensen Lcsw PLLC's NPPES record is Mari Mortensen, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mari Mortensen Lcsw PLLC's NPI active?
- Yes — Mari Mortensen Lcsw PLLC's NPI (1780412403) is active in the NPPES registry as of the last update on 2025-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.