Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Rauser Psychological Services

Preferred Provider Organization in Chicago, IL · enumerated 2008 · authorized official Mark Rauser, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861660326

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Registry record

Entity type Organization (Type 2)

Legal business name Rauser Psychological Services

Practice address 4037 N Sheridan Rd, Unit 1, Chicago, IL, 60613

Phone (773) 301-6144

Enumeration date Feb 18, 2008

Last updated in NPPES Feb 18, 2008

Taxonomy & classification

305R00000X Preferred Provider Organization Managed Care Organizations Primary

Authorized official

Name Mark Rauser

Title President

Phone (773) 301-6144

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where is Rauser Psychological Services located?

The practice location on file with NPPES is in Chicago, IL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-02-18. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-18.