Marguerite Drennan, LCSW
NPI 1922283472 · Clinical Social Worker · Oak Park, IL
Marguerite Drennan, LCSW is a Clinical Social Worker provider in Oak Park, IL (NPI 1922283472).
Provider details
- NPI number
- 1922283472
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
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
18 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
Mailing address
Registry dates
- Enumerated
- 2008-01-03
- Last updated
- 2008-01-03
Frequently asked questions
- What is Marguerite Drennan's NPI number?
- Marguerite Drennan's National Provider Identifier (NPI) is 1922283472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marguerite Drennan's specialty?
- Marguerite Drennan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marguerite Drennan located?
- Marguerite Drennan's practice location on file with NPPES is 1140 Lake St, Oak Park, IL 60301-1049.
- What is Marguerite Drennan's phone number?
- The practice phone number listed in the NPPES registry for Marguerite Drennan is (312) 437-0075.
- Is Marguerite Drennan's NPI active?
- Yes — Marguerite Drennan's NPI (1922283472) is active in the NPPES registry as of the last update on 2008-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.