What is Leanna Callahan's NPI number?

Leanna Callahan's National Provider Identifier (NPI) is 1558190983, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Leanna Callahan's specialty?

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

Where is Leanna Callahan located?

Leanna Callahan's practice location on file with NPPES is 320 E 52nd St Apt 2g, New York, NY 10022-6709.

What is Leanna Callahan's phone number?

The practice phone number listed in the NPPES registry for Leanna Callahan is (423) 863-3844.

Is Leanna Callahan's NPI active?

Yes — Leanna Callahan's NPI (1558190983) is active in the NPPES registry as of the last update on 2026-06-04.

IndividualActive

Leanna Callahan

NPI 1558190983 · Behavior Analyst · New York, NY

Leanna Callahan is a Behavior Analyst provider in New York, NY (NPI 1558190983).

Provider details

NPI number: 1558190983
Entity type: Individual
Primary specialty: Behavior AnalystBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes

Specialties & taxonomies

Behavior AnalystPrimary103K00000X
Behavioral Health & Social Service Providers

Profile Score

Established profile(50/100 index)

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

Registry tenure38% of score
1 yr in NPPES 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

320 E 52nd St Apt 2g

New York, NY 10022-6709

Phone: (423) 863-3844

Street-level locationGet directions

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Mailing address