ARIELLE CALLAHAN
NPI 1467119578
Counselor - Mental Health in College Park, MD

Active since November 23, 2021
8400 BALTIMORE AVE STE 300, COLLEGE PARK, MD 20740(240) 670-4050 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 20, 2022, Nov 23, 2021 (2 updates tracked since 2021).

About Arielle Callahan NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ARIELLE CALLAHAN (NPI 1467119578) is an individual mental health provider in College Park, Maryland and active in the NPI registry since November 2021. She maintains a secondary practice location in Greenbelt.

NPPES Registry Identity

NPI1467119578
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameARIELLE CALLAHAN
Location Address8400 BALTIMORE AVE STE 300College Park, MD 20740-2496
Mailing Address4835 Cordell Ave Apt 406Bethesda, MD 20814-3150 · (908) 327-5963
Sole ProprietorNo
Enumeration DateNovember 23, 2021
Last NPPES UpdateJune 29, 20262 updates tracked since enumeration
NPPES CertifiedJune 29, 2026
NPI 1467119578 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
8400 BALTIMORE AVE STE 300, College Park, MD 20740

Secondary Practice Location 1

Location 17317 Hanover Pkwy Ste AGreenbelt, MD 20770-3614 · Phone (301) 220-2842

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker
8400 BALTIMORE AVE STE 300
COLLEGE PARK, MD 20740
Counselor (Mental Health)
8400 BALTIMORE AVE STE 300
COLLEGE PARK, MD 20740
Counselor
8400 BALTIMORE AVE STE 300
COLLEGE PARK, MD 20740
Counselor (Mental Health)
8400 BALTIMORE AVE STE 300
COLLEGE PARK, MD 20740

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Arielle Callahan's NPI number?

The NPI number for Arielle Callahan is 1467119578. It was assigned to this individual provider in the NPPES registry on November 23, 2021.

Where is Arielle Callahan located?

Arielle Callahan practices at 8400 Baltimore Ave Ste 300, College Park, MD 20740. The listed phone number is (240) 670-4050.

What is Arielle Callahan's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Arielle Callahan was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.