Katarzyna Tkaczyk

Katarzyna Tkaczyk is a Behavior Analyst provider (Behavior Analyst) practicing in Cranford, NJ, registered in the NPPES registry with NPI 1386349231 since 2023.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1386349231
Entity type	Individual (Type 1)
Name	Katarzyna Tkaczyk
Sex	Female
Practice address	Cranford, NJ, 07016
Phone	0829515949
Enumeration date	2023-03-31
Last updated in NPPES	2023-03-31

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103K00000X	Behavior Analyst	Primary	—	—

Copy-ready billing details

Provider: Katarzyna Tkaczyk
NPI: 1386349231
Taxonomy: 103K00000X (Behavior Analyst)
Address: Cranford, NJ, 07016

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1619765708	Jessica Lawrence	Individual	Behavior Analyst	Cranford, NJ

Verify this record

Cross-check NPI 1386349231 against the authoritative CMS record: view Katarzyna Tkaczyk on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Where does Katarzyna Tkaczyk practice?

The practice location on file with NPPES is in Cranford, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Katarzyna Tkaczyk?

The National Provider Identifier (NPI) for Katarzyna Tkaczyk is 1386349231, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-03-31.