What is Joanna Holowczyk's NPI number?

Joanna Holowczyk's National Provider Identifier (NPI) is 1790631893, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joanna Holowczyk's specialty?

Joanna Holowczyk is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).

Where is Joanna Holowczyk located?

Joanna Holowczyk's practice location on file with NPPES is 35 Carol Dr, Plainville, CT 06062-3205.

What is Joanna Holowczyk's phone number?

The practice phone number listed in the NPPES registry for Joanna Holowczyk is (203) 927-4013.

Is Joanna Holowczyk's NPI active?

Yes — Joanna Holowczyk's NPI (1790631893) is active in the NPPES registry as of the last update on 2026-03-10.

IndividualActive

Joanna Holowczyk

NPI 1790631893 · Behavior Analyst · Plainville, CT

Joanna Holowczyk is a Behavior Analyst provider in Plainville, CT (NPI 1790631893).

Provider details

NPI number: 1790631893
Entity type: Individual
Primary specialty: Behavior AnalystBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes
License: 11518357 (CT)

Specialties & taxonomies

Behavior AnalystPrimary103K00000XLicense 11518357 (CT)
Behavioral Health & Social Service Providers

Profile Score

Established profile(53/100 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
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

35 Carol Dr

Plainville, CT 06062-3205

Phone: (203) 927-4013

Street-level locationGet directions

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Mailing address