Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Obstetrics/Gynecology

Kathleen E. Bren, MD

Sees patients in Washington, DC · District of Columbia

Summary

Kathleen E. Bren, MD (Obstetrics/Gynecology) is enrolled with Medicare at 1 practice location in Washington, DC. NPI 1154717387. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Kathleen E. Bren, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
Georgetown University School Of MedicineMedical school
FemaleGender (as listed)
Bloom Ob Gyn LLCGroup practice

Quick answers

Where does Kathleen E. Bren see patients?
Medicare's clinician data lists 1 practice location in Washington, DC. Call before your visit to confirm the address.
What is Kathleen E. Bren's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Kathleen E. Bren accept Medicare assignment?
Yes. Medicare's clinician data says Kathleen E. Bren accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Kathleen E. Bren?
(202) 449-9570, as listed in official Medicare / NPI Registry data.
What is Kathleen E. Bren's NPI number?
1154717387. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Kathleen E. Bren is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Kathleen E. Bren as a member of this group (CMS data updated 2026-10-02).

  • Bloom Ob Gyn LLC5 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in District of Columbia →

Other OB-GYNs in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

All OB-GYNs in Washington →

Clinician information

CredentialMD
Medical schoolGeorgetown University School Of Medicine
Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154717387
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians