Quick answers
- Which hospitals does Margaret Williamson work at?
- Medicare's official clinician data lists Margaret Williamson at 4 hospitals: Emory University Hospital Midtown, Northside Hospital, Northside Hospital Forsyth and Saint Joseph's Hospital of Atlanta, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Margaret Williamson see patients?
- Medicare's clinician data lists 2 practice locations, including Atlanta, GA. Call before your visit to confirm the address.
- What is Margaret Williamson's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Margaret Williamson accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret Williamson 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 Margaret Williamson?
- (404) 256-4111, as listed in official Medicare / NPI Registry data.
- What is Margaret Williamson's NPI number?
- 1093855884. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Margaret Williamson works
Medicare's Facility Affiliation Data lists Margaret Williamson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Emory University Hospital MidtownAtlanta, GA · Acute Care Hospital · CCN 110078
- Northside HospitalAtlanta, GA · Acute Care Hospital · CCN 110161
- Northside Hospital ForsythCumming, GA · Acute Care Hospital · CCN 110005
- Saint Joseph's Hospital of Atlanta, IncAtlanta, GA · Acute Care Hospital · CCN 110082
Practice locations
Addresses where Margaret Williamson is enrolled with Medicare (CMS data updated 2026-10-02).
- 5673 Peachtree DunwoodyAtlanta, GA 30342 (404) 256‑4111
- 5673 Peachtree Dunwoody Rd, Suite 600Atlanta, GA 30342
Group practices
Medicare enrollment lists Margaret Williamson as a member of this group (CMS data updated 2026-10-02).
- Georgia Infectious Diseases, P.C.2 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Atlanta
Clinicians with the same Medicare primary specialty in Atlanta, GA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Emory University School Of Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093855884 |
| 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