IndividualActive
Marianne Brennan
NPI 1548593973 · Social Worker · Northfield, IL
Marianne Brennan is a Social Worker provider in Northfield, IL (NPI 1548593973).
Provider details
- NPI number
- 1548593973
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(78/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
83% 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
405 Central Ave
Northfield, IL 60093-3006
Phone: (847) 441-5600
Street-level locationGet directions
Mailing address
969 E 60th St
Chicago, IL 60637-2640
Registry dates
- Enumerated
- 2009-09-16
- Last updated
- 2010-12-29
Frequently asked questions
- What is Marianne Brennan's NPI number?
- Marianne Brennan's National Provider Identifier (NPI) is 1548593973, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianne Brennan's specialty?
- Marianne Brennan is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Marianne Brennan located?
- Marianne Brennan's practice location on file with NPPES is 405 Central Ave, Northfield, IL 60093-3006.
- What is Marianne Brennan's phone number?
- The practice phone number listed in the NPPES registry for Marianne Brennan is (847) 441-5600.
- Is Marianne Brennan's NPI active?
- Yes — Marianne Brennan's NPI (1548593973) is active in the NPPES registry as of the last update on 2010-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.