MW
26 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Williamson, Infectious Disease Specialist in Atlanta, GA?
Dr. Margaret Williamson, MD is an Infectious Disease Specialist, who primarily practices in Atlanta, GA. She has been practicing for over 26 years and is board certified. Dr. Williamson graduated from Emory University School Of Medicine and completed her residency at Emory Univ Sch Of Med, Infectious Diseases; Dallas Co Hp-Parkland Mem, Internal Medicine. Dr. Williamson is fluent in English and Spanish, and is currently seeing new patients. Dr. Williamson’s practice accepts Medicaid, Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Williamson’s office at (404) 256-4111.
What are Areas of Expertise for Dr. Williamson?
Dr. Margaret Williamson, MD is a highly-rated, board-certified Infectious Disease Specialist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Williamson empowers patients to confidently navigate their health journey, specializing in HIV/AIDS, Lung Infections, Parasitic Infections, Travel Medicine, and comprehensive wellness support. Serving the Atlanta, GA community, Dr. Williamson is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Williamson go to medical school and complete their residency?
Residency: Emory Univ Sch Of Med, Infectious Diseases; Dallas Co Hp-Parkland Mem, Internal Medicine
Medical School: Emory University School Of Medicine
Is Dr. Williamson board certified as an Infectious Disease Specialist?
Yes, Dr. Margaret Williamson, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Williamson speak?
Dr. Williamson and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does an Infectious Disease Specialist like Dr. Williamson typically treat?
As an Infectious Disease Specialist, Dr. Williamson diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Williamson. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Sepsis
- E. Coli Sepsis
- E. Coli Infection
- Blood Poisoning
- Septicemia
- Systemic Bacterial Infection
- E. coli Blood Infection
- E. coli Septicemia
- Bacterial Blood Poisoning
ICD-10 Codes:
- A419: Sepsis, unspecified organism
- A4151: Sepsis due to Escherichia coli [E. coli]
Also known as:
- Non-Hereditary Low Immunoglobulin Levels
- Immune System and Disorder
- Acquired Antibody Deficiency
- Non-Genetic Immune Deficiency
ICD-10 Codes:
- D801: Nonfamilial hypogammaglobulinemia
Also known as:
- Cellulitis of Left Lower Limb
- Cellulitis
- Cellulitis of Abdominal Wall
- Left Leg Skin Infection
- Bacterial Left Leg Infection
- Spreading Left Leg Infection
- Bacterial Skin Infection
- Leg Skin Infection
- Spreading Skin Infection
- Abdominal Skin Infection
- Stomach Area Skin Infection
ICD-10 Codes:
- L03116: Cellulitis of left lower limb
- L03115: Cellulitis of right lower limb
- L03311: Cellulitis of abdominal wall
Also known as:
- HIV
- Human Immunodeficiency Virus
- AIDS virus
ICD-10 Codes:
- B20: Human immunodeficiency virus [HIV] disease
Also known as:
- Acute Bladder Infection
- Bladder Disease
- Acute Cystitis
- Sudden Bladder Infection
ICD-10 Codes:
- N3000: Acute cystitis without hematuria
What procedures does an Infectious Disease Specialist like Dr. Williamson typically perform?
As an Infectious Disease Specialist, procedures performed by Dr. Margaret Williamson may include:
- Epidemiology Consultation
- Epidemiology Follow Up
- HIV / AIDS Consultation
- HIV / AIDS Follow Up
- Human Papillomavirus (HPV) Vaccine
- Infection Follow Up
- Lumbar Puncture
- Pertussis Vaccine
Please contact Dr. Williamson's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Williamson accept my insurance?
Dr. Williamson accepts most major insurance plans. Important: Please call our office at (404) 256-4111 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Williamson accept in Atlanta, GA?
Dr. Williamson in Atlanta, GA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Blue Cross Blue Shield of Michigan
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Federal government of the United States
Humana
Medicaid
Medicare
Mutual of Omaha
Oscar Health
UnitedHealth Group
View All Insurances
Where is Dr. Williamson's office located?
Dr. Margaret Williamson's Primary Practice
5673 Peachtree Dunwoody Rd Ste 600
Atlanta, GA 30342
(404) 256-4111
What hospitals are Dr. Williamson affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Williamson has admitting privileges at the following hospitals:
Recognitions
Castle Connolly Doctor’s Choice Awards
Doctor’s Choice - All Time
Among the most nominated for the Castle Connolly Top Doctor recognition across all time
Doctor’s Choice - 2025
Among the most nominated for the Castle Connolly Top Doctor recognition in 2025
Doctor’s Choice - Last 5 Years
Among the most nominated for the Castle Connolly Top Doctor recognition in the last 5 years
What is Dr. Williamson's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Williamson's National Provider Identifier (NPI) number is 1093855884.
What common questions do patients ask about Dr. Williamson?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Williamson
What is Dr. Margaret Williamson's specialty?
Dr. Williamson is an Infectious Disease Specialist near Atlanta, GA.
What does an Infectious Disease Specialist do?
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
Is Dr. Margaret Williamson affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Williamson is affiliated with Emory Saint Joseph's Hospital - Atlanta, Northside Hospital Atlanta which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see an Infectious Disease Specialist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Infectious Disease Specialist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Dr. Margaret Williamson accepting new patients in Atlanta, GA?
Yes, Dr. Margaret Williamson is accepting new patients at this time.
Does Dr. Margaret Williamson offer online booking?
Please contact Dr. Williamson's office at (404) 256-4111 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Dr. Margaret Williamson?
Please contact Dr. Williamson's office at (404) 256-4111 to schedule an appointment.
Where is Dr. Williamson's office located?
Dr. Williamson's office is located in Atlanta, GA.
Which board certifications does Dr. Margaret Williamson have?
Dr. Margaret Williamson is certified by the American Board of Internal Medicine.
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