NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Livia Bir, PSY.D.

Clinical Neuropsychologist in Crystal Lake, IL · enumerated 2021 · practices at Christina J Vocos Psyd PC.

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

National Provider Identifier

1033794318

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Livia Bir
Credential PSY.D.
Sex Female
Practice address 365 Millennium Dr Ste C, Crystal Lake, IL, 60012
Phone (224) 522-8049
Fax (866) 463-1219
Enumeration date Mar 17, 2021
Last updated in NPPES Jun 8, 2026

Taxonomy & licenses

103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 071.010468 (IL) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

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

What is the NPI number for Livia Bir?
The National Provider Identifier (NPI) for Livia Bir is 1033794318, a Type 1 (individual) record in the CMS NPPES registry.
Where does Livia Bir practice?
The practice location on file with NPPES is in Crystal Lake, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-08.