Quick answers
- Where does Isabel S. Obrien see patients?
- Medicare's clinician data lists 2 practice locations, including Chattanooga, TN and Atlanta, GA. Call before your visit to confirm the address.
- What is Isabel S. Obrien's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Isabel S. Obrien accept Medicare assignment?
- Medicare's clinician data says Isabel S. Obrien may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Isabel S. Obrien's NPI number?
- 1386387488. 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 Isabel S. Obrien is enrolled with Medicare (CMS data updated 2026-10-02).
- 1310 Dugdale StChattanooga, TN 37405
- 5665 New Northside Dr, Suite 320Atlanta, GA 30328
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Chattanooga
Clinicians with the same Medicare primary specialty in Chattanooga, TN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1386387488 |
| 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
- 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