What is Brendan Varnas's NPI number?

Brendan Varnas's National Provider Identifier (NPI) is 1598615858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Brendan Varnas's specialty?

Brendan Varnas is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Brendan Varnas located?

Brendan Varnas's practice location on file with NPPES is 6414 W North Ave, Chicago, IL 60707.

What is Brendan Varnas's phone number?

The practice phone number listed in the NPPES registry for Brendan Varnas is (708) 787-8840.

Is Brendan Varnas's NPI active?

Yes — Brendan Varnas's NPI (1598615858) is active in the NPPES registry as of the last update on 2026-01-28.

IndividualActive

Brendan Varnas

NPI 1598615858 · Behavior Technician · Chicago, IL

Brendan Varnas is a Behavior Technician provider in Chicago, IL (NPI 1598615858).

Provider details

NPI number: 1598615858
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% 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

6414 W North Ave

Chicago, IL 60707

Phone: (708) 787-8840

Street-level locationGet directions

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Mailing address