Alissa Irwin, PSYD
NPI 1891429627 · Clinical Neuropsychologist · Chicago, IL
Alissa Irwin, PSYD is a Clinical Neuropsychologist provider in Chicago, IL (NPI 1891429627).
Provider details
- NPI number
- 1891429627
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PSYD
- Sex
- Female
- Sole proprietor
- No
- License
- 071010722 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
4 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
- 2022-07-16
- Last updated
- 2022-10-10
- Certified
- 2022-10-10
Frequently asked questions
- What is Alissa Irwin's NPI number?
- Alissa Irwin's National Provider Identifier (NPI) is 1891429627, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alissa Irwin's specialty?
- Alissa Irwin is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Alissa Irwin located?
- Alissa Irwin's practice location on file with NPPES is 820 S Damen Ave, Chicago, IL 60612-3728.
- What is Alissa Irwin's phone number?
- The practice phone number listed in the NPPES registry for Alissa Irwin is (312) 596-8387.
- Is Alissa Irwin's NPI active?
- Yes — Alissa Irwin's NPI (1891429627) is active in the NPPES registry as of the last update on 2022-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.