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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

TIMOTHY MAHONEY
NPI 1396660692
Counselor - Mental Health in Washington, DC

Active since August 13, 2026
4000 ALBERMARLE ST NW, STE 500, WASHINGTON, DC 20016(202) 531-5385 Get Directions Write a Review

NPPES record added: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Timothy Mahoney NPPES

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

TIMOTHY MAHONEY (NPI 1396660692) is an individual mental health provider in Washington, District Of Columbia, licensed in District Of Columbia (LG200008967) and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1396660692
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameTIMOTHY MAHONEY
Location Address4000 ALBERMARLE ST NW, STE 500Washington, DC 20016
Mailing Address4000 Albermarle St Nw, Ste 500Washington, DC 20016 · (202) 531-5385
Phone(202) 531-5385
Sole ProprietorYes
Enumeration DateAugust 13, 2026
NPPES CertifiedAugust 5, 2026
✔ NPI 1396660692 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in DC · LG200008967
4000 ALBERMARLE ST NW, Washington, DC 20016
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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 Timothy Mahoney's NPI number?

The NPI number for Timothy Mahoney is 1396660692. It was assigned to this individual provider in the NPPES registry on August 13, 2026.

Where is Timothy Mahoney located?

Timothy Mahoney practices at 4000 Albermarle St NW Ste 500, Washington, DC 20016. The listed phone number is (202) 531-5385.

What is Timothy Mahoney'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 Timothy Mahoney was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.