Andrew Shack, PH.D.
NPI 1659327229 · Clinical Psychologist · Oak Park, IL
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Shack, PH.D. is a Clinical Psychologist provider in Oak Park, IL (NPI 1659327229).
Provider details
- NPI number
- 1659327229
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 071-006231 (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
20 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
- 2006-05-25
- Last updated
- 2014-02-27
Frequently asked questions
- What is Andrew Shack's NPI number?
- Andrew Shack's National Provider Identifier (NPI) is 1659327229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Shack's specialty?
- Andrew Shack is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Andrew Shack located?
- Andrew Shack's practice location on file with NPPES is 1103 Westgate St, Oak Park, IL 60301-1088.
- What is Andrew Shack's phone number?
- The practice phone number listed in the NPPES registry for Andrew Shack is (708) 386-8112.
- Does Andrew Shack accept Medicare?
- Andrew Shack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Shack's NPI active?
- Yes — Andrew Shack's NPI (1659327229) is active in the NPPES registry as of the last update on 2014-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.