Quick answers
- Which hospitals does Bess Flashner work at?
- Medicare's official clinician data lists Bess Flashner at 3 hospitals: Beth Israel Deaconess Hospital - Needham, Beth Israel Deaconess Medical Center and George Washington Univ Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Bess Flashner see patients?
- Medicare's clinician data lists 1 practice location in Washington, DC. Call before your visit to confirm the address.
- What is Bess Flashner's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Bess Flashner accept Medicare assignment?
- Yes. Medicare's clinician data says Bess Flashner 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 Bess Flashner?
- (202) 741-2600, as listed in official Medicare / NPI Registry data.
- What is Bess Flashner's NPI number?
- 1588044382. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Bess Flashner works
Medicare's Facility Affiliation Data lists Bess Flashner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beth Israel Deaconess Hospital - NeedhamNeedham, MA · Acute Care Hospital · CCN 220083
- Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · CCN 220086
- George Washington Univ HospitalWashington, DC · Acute Care Hospital · CCN 090001
Practice locations
Addresses where Bess Flashner is enrolled with Medicare (CMS data updated 2026-10-02).
- 2150 Pennsylvania Ave NWWashington, DC 20037 (202) 741‑2600
Group practices
Medicare enrollment lists Bess Flashner as a member of this group (CMS data updated 2026-10-02).
- Medical Faculty Associates, Inc672 clinicians in the group
Specialties
- Internal Medicineprimary
Find other Internal Medicine doctors in District of Columbia →
Other internal medicine doctors in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | George Washington University School Of Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588044382 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians