Marylou Nallen, PSYD.
NPI 1205936952 · Clinical Psychologist · Libertyville, IL
Marylou Nallen, PSYD. is a Clinical Psychologist provider in Libertyville, IL (NPI 1205936952).
Provider details
- NPI number
- 1205936952
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD.
- Sex
- Female
- Sole proprietor
- No
- License
- 071007149 (IL)
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
19 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
- 2006-09-23
- Last updated
- 2015-08-25
Frequently asked questions
- What is Marylou Nallen's NPI number?
- Marylou Nallen's National Provider Identifier (NPI) is 1205936952, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marylou Nallen's specialty?
- Marylou Nallen is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Marylou Nallen located?
- Marylou Nallen's practice location on file with NPPES is 708 Florsheim Dr, Libertyville, IL 60048-5001.
- What is Marylou Nallen's phone number?
- The practice phone number listed in the NPPES registry for Marylou Nallen is (847) 561-2397.
- Is Marylou Nallen's NPI active?
- Yes — Marylou Nallen's NPI (1205936952) is active in the NPPES registry as of the last update on 2015-08-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.