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DR. GRACE-ELLEN MAHONEY
NPI 1619825742
Psychologist - Clinical in Washington, DC

Active since March 16, 2026
1235 PENNSYLVANIA AVE SE # 27, WASHINGTON, DC 20003(240) 293-0922 Get Directions Write a Review

NPPES record last updated: March 16, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Grace-ellen Mahoney NPPES

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

DR. GRACE-ELLEN MAHONEY (NPI 1619825742) is an individual clinical provider in Washington, District Of Columbia, licensed in Maryland (07053) and active in the NPI registry since March 2026.

NPPES Registry Identity

NPI1619825742
Entity TypeIndividual
Primary Taxonomy103TC0700X
Provider Legal NameDR. GRACE-ELLEN MAHONEY
Location Address1235 PENNSYLVANIA AVE SE # 27Washington, DC 20003-2227
Mailing Address1235 Pennsylvania Ave Se # 27Washington, DC 20003-2227
Phone(240) 293-0922
Sole ProprietorYes
Enumeration DateMarch 16, 2026
NPPES CertifiedMarch 16, 2026
✔ NPI 1619825742 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MD · 07053
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
1235 PENNSYLVANIA AVE SE # 27, Washington, DC 20003
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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 Grace-ellen Mahoney's NPI number?

The NPI number for Grace-ellen Mahoney is 1619825742. It was assigned to this individual provider in the NPPES registry on March 16, 2026.

Where is Grace-ellen Mahoney located?

Grace-ellen Mahoney practices at 1235 Pennsylvania Ave SE # 27, Washington, DC 20003. The listed phone number is (240) 293-0922.

What is Grace-ellen Mahoney's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Grace-ellen Mahoney was last updated on March 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.