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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TRANQUILLIUM, LLC.
NPI 1497544951
Marriage & Family Therapist in Washington, DC

Active since May 01, 2025
1319 F ST NW STE 301, WASHINGTON, DC 20004(202) 810-3439(301) 560-8141 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 8, 2026, Apr 16, 2026 (2 updates tracked since 2026).

About Tranquillium, Llc. NPPES

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

TRANQUILLIUM, LLC. (NPI 1497544951) is a healthcare organization registered as a marriage & family therapist in Washington, District Of Columbia and active in the NPI registry since May 2025. The organization lists Bernadette Latricia Boozer-madison, Owner/founder, as its authorized official.

NPPES Registry Identity

NPI1497544951
Entity TypeOrganization
Primary Taxonomy106H00000X
Legal Business NameTRANQUILLIUM, LLC.
Location Address1319 F ST NW STE 301Washington, DC 20004-1140
Mailing Address1319 F St Nw Ste 301, Pmb#170Washington, DC 20004-1140 · (202) 810-3439 · Fax (301) 560-8141
Phone(202) 810-3439
Fax(301) 560-8141
Organization SubpartNo
Authorized OfficialBernadette Latricia Boozer-madisonOwner/founder · (202) 810-3439
Enumeration DateMay 1, 2025
Last NPPES UpdateOctober 8, 20262 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1497544951 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
1319 F ST NW STE 301, Washington, DC 20004
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Other Identifiers 1

Medicaid1497544951VA

Other Providers at the Same Location NPPES 3

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

CURA TEMPOS LLC
Counselor (Mental Health)
1319 F ST NW STE 301
WASHINGTON, DC 20004
District of Columbia (423) 943-6803
WILLIAM GRIFFITH MCVEY M.A.
Counselor (Mental Health)
1319 F ST NW STE 301
WASHINGTON, DC 20004
District of Columbia (423) 943-6803
DR. BERNADETTE LATRICIA BOOZER-MADISON PHD, MSW, LMFT
Marriage & Family Therapist
1319 F ST NW STE 301
WASHINGTON, DC 20004
District of Columbia (202) 810-3439

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 Tranquillium, LLC.'s NPI number?

The NPI number for Tranquillium, LLC. is 1497544951. It was assigned to this organization in the NPPES registry on May 1, 2025.

Where is Tranquillium, LLC. located?

Tranquillium, LLC. is located at 1319 F St NW Ste 301, Washington, DC 20004. The listed phone number is (202) 810-3439.

What is Tranquillium, LLC.'s specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Tranquillium, LLC. was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.