The Thresholds
NPI 1457508749 · Mental Health Clinic/Center (Including Community Mental Health Center) · Chicago, IL
The Thresholds is a Mental Health Clinic/Center (Including Community Mental Health Center) organization in Chicago, IL (NPI 1457508749).
Provider details
- NPI number
- 1457508749
- Entity type
- Organization
- Primary specialty
- Mental Health Clinic/Center (Including Community Mental Health Center)Ambulatory Health Care Facilities
- Parent organization
- The Thresholds
- Organization subpart
- Yes
- Authorized official
- Marcella Klauer, Executive Assistant(773) 572-5480
Specialties & taxonomies
Ambulatory Health Care Facilities
Residential Treatment Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
Other names (DBA / former)
- Doing business as
- Southside Housing Mazza House
- Other name
- Southside Housing Mazza House
- Doing business as
- Southside Housing Mazza House
Registry dates
- Enumerated
- 2008-08-19
- Last updated
- 2026-01-09
- Certified
- 2026-01-09
Frequently asked questions
- What is The Thresholds's NPI number?
- The Thresholds's National Provider Identifier (NPI) is 1457508749, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is The Thresholds?
- The Thresholds is classified in the NPPES registry as Mental Health Clinic/Center (Including Community Mental Health Center) (Ambulatory Health Care Facilities).
- Where is The Thresholds located?
- The Thresholds's practice location on file with NPPES is 1541-1545 E Marquette Rd, Chicago, IL 60637.
- What is The Thresholds's phone number?
- The practice phone number listed in the NPPES registry for The Thresholds is (773) 572-5500.
- Who is the authorized official for The Thresholds?
- The authorized official listed on The Thresholds's NPPES record is Marcella Klauer, Executive Assistant. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is The Thresholds's NPI active?
- Yes — The Thresholds's NPI (1457508749) is active in the NPPES registry as of the last update on 2026-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.