Daniela Guilliam, MD
Specialties
Sleep Medicine
Education & Training
Doctor of Medicine
Daniela Guilliam, MD
Neurologist with Wellstar since 2013.
Specialties
Sleep Medicine
Education & Training
Doctor of Medicine
Office Locations
Expertise
Specialties
- Sleep Medicine
Education & Training
- Mount Sinai School of Medicine
Degree
- Doctor of Medicine
Residency
- Mount Sinai School of Medicine
Fellowship
- University of Miami/Jackson Health System
Certifications
- American Board of Psych/Neurology - Neuro
- American Board of Psych/Neurology - Sleep
Hospital Affiliations
- Wellstar Cobb Hospital
- Wellstar Douglas Hospital
- Wellstar Paulding Medical Center
- Wellstar Windy Hill Hospital
- Wellstar Kennestone Hospital
- Wellstar North Fulton Hospital
Languages spoken
- English
- Portuguese
Common Treatments, Conditions, and Procedures
- Insomnia
- Sleep Apnea Surgery
- Sleep Disorder
- Snoring
Patient Reviews
Overall patient rating
4.8Based on 162 patient ratings
- Listened to me carefully
-
- I'd recommend this provider to family and friends
-
- I'd recommend this practice to family and friends
-
- Shared the right amount of information
-
- Earned my trust
-
All reviews have been submitted by patients after seeing the provider.For more information about the review system, check out this Learn more about our review system.
Patient Reviews
5
Knowledgeable caring professionals.
March 29, 2026
5
Very nice and easy to talk to her about my issue. Her explanation is very easy to understand it.
March 21, 2026
5
Staff and MD were awesome as usually.
March 14, 2026
5
I received excellent care from the doctor.
March 13, 2026
5
Dr Guilliam is amazing
March 12, 2026
5
Well-trained and attentive professionals.
March 6, 2026
5
Dr. Guilliam was great. So was her MA, Alicia.
February 24, 2026
5
Doctor spent a lot of time listening to my concerns and I think her advice will help me with my sleep issues
February 7, 2026
5
Good service.
February 1, 2026
5
Dr Guilliam has helped me with added vitamins like COQ10 and other facts. The office is great and they call me for my 6 month appointments every year.
January 24, 2026
5
The FaceTime appointment worked very well. We were able to communicate effectively as if it were an office appointment.
January 19, 2026
5
I had a EXCELLENT EXPERIENCE!!! Dr. Daniela Guilliam is "The Best!" Thank you!
December 11, 2025
5
I love my doctor
December 5, 2025
5
Dr.G is by far the best doctor that I have ever had. She shows a real concern, and listens to understand what is truly affecting me.
December 4, 2025
5
Everyone is so friendly. It isn't even like going to the doctor, which is sometimes stressful. As a matter of fact, my BP was lower than normal because I was so relaxed. I have already recommended them to others!
November 21, 2025
5
Dr. Guilliam is a really caring provider. She's very understanding and always make sure I'm getting my best rest at night. Dr. Guilliam has been overseeing my Inspire device.
November 20, 2025
5
Always a good experience. Thank you
November 19, 2025
5
the appointment went smoothly. I felt like I was in Good Hands.
November 14, 2025
5
The Doctor and the staff were all excellent and provided me with great advice.
November 10, 2025
5
Each person was friendly and helpful.
October 25, 2025
5
Dr. Guilliam and the entire staff at Austell are just consistently fantastic! They're all professional, instilling confidence at every level that I am understood and receiving the best care for my condition. They're all pleasant and actually appear to enjoy their jobs!
October 24, 2025
5
Great
October 22, 2025
5
It's always a pleasant experience. The doctor and staff are always friendly and helpful.
October 11, 2025
5
I was treated with respect and compassion
September 27, 2025
5
Yes, my experience with Dr. Daniela Gilliam was great. I'm happy that she was able to give me my prescriptions. I just need the authorization being signed and delivered back to the pharmacy just so I can be able to pick up their medication, but she did a great job. So I'm happy with her service.
September 28, 2025
5
Entire staff is patient, kind and professional. Thx
September 18, 2025
5
Everyone, from the front desk staff to the technician and doctor, was very friendly. The doctor made me feel heard and cared for by discussing the next steps and possible future expectations based on the sleep study.
September 17, 2025
4
Yes, Dr. Guilliam was very professional, spent a lot of time with me and my daughter, explained everything she could about what she thought my condition was, and I really liked her. I would recommend all my friends and family to her.
September 17, 2025
5
Good experience. Accomplished everything that I need to cover.
September 12, 2025
4
Everyone was very cordial
August 30, 2025
5
Knowledgeable caring professionals.
March 29, 2026
5
Very nice and easy to talk to her about my issue. Her explanation is very easy to understand it.
March 21, 2026
5
Staff and MD were awesome as usually.
March 14, 2026
5
I received excellent care from the doctor.
March 13, 2026
5
Dr Guilliam is amazing
March 12, 2026
5
Well-trained and attentive professionals.
March 6, 2026
5
Dr. Guilliam was great. So was her MA, Alicia.
February 24, 2026
5
Doctor spent a lot of time listening to my concerns and I think her advice will help me with my sleep issues
February 7, 2026
5
Good service.
February 1, 2026
5
Dr Guilliam has helped me with added vitamins like COQ10 and other facts. The office is great and they call me for my 6 month appointments every year.
January 24, 2026
5
The FaceTime appointment worked very well. We were able to communicate effectively as if it were an office appointment.
January 19, 2026
5
I had a EXCELLENT EXPERIENCE!!! Dr. Daniela Guilliam is "The Best!" Thank you!
December 11, 2025
5
I love my doctor
December 5, 2025
5
Dr.G is by far the best doctor that I have ever had. She shows a real concern, and listens to understand what is truly affecting me.
December 4, 2025
5
Everyone is so friendly. It isn't even like going to the doctor, which is sometimes stressful. As a matter of fact, my BP was lower than normal because I was so relaxed. I have already recommended them to others!
November 21, 2025
5
Dr. Guilliam is a really caring provider. She's very understanding and always make sure I'm getting my best rest at night. Dr. Guilliam has been overseeing my Inspire device.
November 20, 2025
5
Always a good experience. Thank you
November 19, 2025
5
the appointment went smoothly. I felt like I was in Good Hands.
November 14, 2025
5
The Doctor and the staff were all excellent and provided me with great advice.
November 10, 2025
5
Each person was friendly and helpful.
October 25, 2025
5
Dr. Guilliam and the entire staff at Austell are just consistently fantastic! They're all professional, instilling confidence at every level that I am understood and receiving the best care for my condition. They're all pleasant and actually appear to enjoy their jobs!
October 24, 2025
5
Great
October 22, 2025
5
It's always a pleasant experience. The doctor and staff are always friendly and helpful.
October 11, 2025
5
I was treated with respect and compassion
September 27, 2025
5
Yes, my experience with Dr. Daniela Gilliam was great. I'm happy that she was able to give me my prescriptions. I just need the authorization being signed and delivered back to the pharmacy just so I can be able to pick up their medication, but she did a great job. So I'm happy with her service.
September 28, 2025
5
Entire staff is patient, kind and professional. Thx
September 18, 2025
5
Everyone, from the front desk staff to the technician and doctor, was very friendly. The doctor made me feel heard and cared for by discussing the next steps and possible future expectations based on the sleep study.
September 17, 2025
5
Good experience. Accomplished everything that I need to cover.
September 12, 2025
4
Yes, Dr. Guilliam was very professional, spent a lot of time with me and my daughter, explained everything she could about what she thought my condition was, and I really liked her. I would recommend all my friends and family to her.
September 17, 2025
4
Everyone was very cordial
August 30, 2025
4
Yes, Dr. Guilliam was very professional, spent a lot of time with me and my daughter, explained everything she could about what she thought my condition was, and I really liked her. I would recommend all my friends and family to her.
September 17, 2025
4
Everyone was very cordial
August 30, 2025
5
Knowledgeable caring professionals.
March 29, 2026
5
Very nice and easy to talk to her about my issue. Her explanation is very easy to understand it.
March 21, 2026
5
Staff and MD were awesome as usually.
March 14, 2026
5
I received excellent care from the doctor.
March 13, 2026
5
Dr Guilliam is amazing
March 12, 2026
5
Well-trained and attentive professionals.
March 6, 2026
5
Dr. Guilliam was great. So was her MA, Alicia.
February 24, 2026
5
Doctor spent a lot of time listening to my concerns and I think her advice will help me with my sleep issues
February 7, 2026
5
Good service.
February 1, 2026
5
Dr Guilliam has helped me with added vitamins like COQ10 and other facts. The office is great and they call me for my 6 month appointments every year.
January 24, 2026
5
The FaceTime appointment worked very well. We were able to communicate effectively as if it were an office appointment.
January 19, 2026
5
I had a EXCELLENT EXPERIENCE!!! Dr. Daniela Guilliam is "The Best!" Thank you!
December 11, 2025
5
I love my doctor
December 5, 2025
5
Dr.G is by far the best doctor that I have ever had. She shows a real concern, and listens to understand what is truly affecting me.
December 4, 2025
5
Everyone is so friendly. It isn't even like going to the doctor, which is sometimes stressful. As a matter of fact, my BP was lower than normal because I was so relaxed. I have already recommended them to others!
November 21, 2025
5
Dr. Guilliam is a really caring provider. She's very understanding and always make sure I'm getting my best rest at night. Dr. Guilliam has been overseeing my Inspire device.
November 20, 2025
5
Always a good experience. Thank you
November 19, 2025
5
the appointment went smoothly. I felt like I was in Good Hands.
November 14, 2025
5
The Doctor and the staff were all excellent and provided me with great advice.
November 10, 2025
5
Each person was friendly and helpful.
October 25, 2025
5
Dr. Guilliam and the entire staff at Austell are just consistently fantastic! They're all professional, instilling confidence at every level that I am understood and receiving the best care for my condition. They're all pleasant and actually appear to enjoy their jobs!
October 24, 2025
5
Great
October 22, 2025
5
It's always a pleasant experience. The doctor and staff are always friendly and helpful.
October 11, 2025
5
I was treated with respect and compassion
September 27, 2025
5
Yes, my experience with Dr. Daniela Gilliam was great. I'm happy that she was able to give me my prescriptions. I just need the authorization being signed and delivered back to the pharmacy just so I can be able to pick up their medication, but she did a great job. So I'm happy with her service.
September 28, 2025
5
Entire staff is patient, kind and professional. Thx
September 18, 2025
5
Everyone, from the front desk staff to the technician and doctor, was very friendly. The doctor made me feel heard and cared for by discussing the next steps and possible future expectations based on the sleep study.
September 17, 2025
5
Good experience. Accomplished everything that I need to cover.
September 12, 2025
5
Knowledgeable caring professionals.
March 29, 2026
5
Very nice and easy to talk to her about my issue. Her explanation is very easy to understand it.
March 21, 2026
5
Staff and MD were awesome as usually.
March 14, 2026
5
I received excellent care from the doctor.
March 13, 2026
5
Dr Guilliam is amazing
March 12, 2026
5
Well-trained and attentive professionals.
March 6, 2026
5
Dr. Guilliam was great. So was her MA, Alicia.
February 24, 2026
5
Doctor spent a lot of time listening to my concerns and I think her advice will help me with my sleep issues
February 7, 2026
5
Good service.
February 1, 2026
5
Dr Guilliam has helped me with added vitamins like COQ10 and other facts. The office is great and they call me for my 6 month appointments every year.
January 24, 2026
5
The FaceTime appointment worked very well. We were able to communicate effectively as if it were an office appointment.
January 19, 2026
5
I had a EXCELLENT EXPERIENCE!!! Dr. Daniela Guilliam is "The Best!" Thank you!
December 11, 2025
5
I love my doctor
December 5, 2025
5
Dr.G is by far the best doctor that I have ever had. She shows a real concern, and listens to understand what is truly affecting me.
December 4, 2025
5
Everyone is so friendly. It isn't even like going to the doctor, which is sometimes stressful. As a matter of fact, my BP was lower than normal because I was so relaxed. I have already recommended them to others!
November 21, 2025
5
Dr. Guilliam is a really caring provider. She's very understanding and always make sure I'm getting my best rest at night. Dr. Guilliam has been overseeing my Inspire device.
November 20, 2025
5
Always a good experience. Thank you
November 19, 2025
5
the appointment went smoothly. I felt like I was in Good Hands.
November 14, 2025
5
The Doctor and the staff were all excellent and provided me with great advice.
November 10, 2025
5
Each person was friendly and helpful.
October 25, 2025
5
Dr. Guilliam and the entire staff at Austell are just consistently fantastic! They're all professional, instilling confidence at every level that I am understood and receiving the best care for my condition. They're all pleasant and actually appear to enjoy their jobs!
October 24, 2025
5
Great
October 22, 2025
5
It's always a pleasant experience. The doctor and staff are always friendly and helpful.
October 11, 2025
5
Yes, my experience with Dr. Daniela Gilliam was great. I'm happy that she was able to give me my prescriptions. I just need the authorization being signed and delivered back to the pharmacy just so I can be able to pick up their medication, but she did a great job. So I'm happy with her service.
September 28, 2025
5
I was treated with respect and compassion
September 27, 2025
5
Entire staff is patient, kind and professional. Thx
September 18, 2025
5
Everyone, from the front desk staff to the technician and doctor, was very friendly. The doctor made me feel heard and cared for by discussing the next steps and possible future expectations based on the sleep study.
September 17, 2025
4
Yes, Dr. Guilliam was very professional, spent a lot of time with me and my daughter, explained everything she could about what she thought my condition was, and I really liked her. I would recommend all my friends and family to her.
September 17, 2025
5
Good experience. Accomplished everything that I need to cover.
September 12, 2025
4
Everyone was very cordial
August 30, 2025
4
Everyone was very cordial
August 30, 2025
5
Good experience. Accomplished everything that I need to cover.
September 12, 2025
4
Yes, Dr. Guilliam was very professional, spent a lot of time with me and my daughter, explained everything she could about what she thought my condition was, and I really liked her. I would recommend all my friends and family to her.
September 17, 2025
5
Everyone, from the front desk staff to the technician and doctor, was very friendly. The doctor made me feel heard and cared for by discussing the next steps and possible future expectations based on the sleep study.
September 17, 2025
5
Entire staff is patient, kind and professional. Thx
September 18, 2025
5
I was treated with respect and compassion
September 27, 2025
5
Yes, my experience with Dr. Daniela Gilliam was great. I'm happy that she was able to give me my prescriptions. I just need the authorization being signed and delivered back to the pharmacy just so I can be able to pick up their medication, but she did a great job. So I'm happy with her service.
September 28, 2025
5
It's always a pleasant experience. The doctor and staff are always friendly and helpful.
October 11, 2025
5
Great
October 22, 2025
5
Dr. Guilliam and the entire staff at Austell are just consistently fantastic! They're all professional, instilling confidence at every level that I am understood and receiving the best care for my condition. They're all pleasant and actually appear to enjoy their jobs!
October 24, 2025
5
Each person was friendly and helpful.
October 25, 2025
5
The Doctor and the staff were all excellent and provided me with great advice.
November 10, 2025
5
the appointment went smoothly. I felt like I was in Good Hands.
November 14, 2025
5
Always a good experience. Thank you
November 19, 2025
5
Dr. Guilliam is a really caring provider. She's very understanding and always make sure I'm getting my best rest at night. Dr. Guilliam has been overseeing my Inspire device.
November 20, 2025
5
Everyone is so friendly. It isn't even like going to the doctor, which is sometimes stressful. As a matter of fact, my BP was lower than normal because I was so relaxed. I have already recommended them to others!
November 21, 2025
5
Dr.G is by far the best doctor that I have ever had. She shows a real concern, and listens to understand what is truly affecting me.
December 4, 2025
5
I love my doctor
December 5, 2025
5
I had a EXCELLENT EXPERIENCE!!! Dr. Daniela Guilliam is "The Best!" Thank you!
December 11, 2025
5
The FaceTime appointment worked very well. We were able to communicate effectively as if it were an office appointment.
January 19, 2026
5
Dr Guilliam has helped me with added vitamins like COQ10 and other facts. The office is great and they call me for my 6 month appointments every year.
January 24, 2026
5
Good service.
February 1, 2026
5
Doctor spent a lot of time listening to my concerns and I think her advice will help me with my sleep issues
February 7, 2026
5
Dr. Guilliam was great. So was her MA, Alicia.
February 24, 2026
5
Well-trained and attentive professionals.
March 6, 2026
5
Dr Guilliam is amazing
March 12, 2026
5
I received excellent care from the doctor.
March 13, 2026
5
Staff and MD were awesome as usually.
March 14, 2026
5
Very nice and easy to talk to her about my issue. Her explanation is very easy to understand it.
March 21, 2026
5
Knowledgeable caring professionals.
March 29, 2026
Daniela Guilliam, MD
Neurologist with Wellstar since 2013
Rating
4.8
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Specialties
Sleep Medicine
Education
Doctor of Medicine
Medical School
Mount Sinai School of Medicine
Residency
Mount Sinai School of Medicine
Fellowship
University of Miami/Jackson Health System
Certifications
American Board of Psych/Neurology - Neuro American Board of Psych/Neurology - Sleep
Spoken Languages
English and Portuguese
Hospital Affiliations
Wellstar Cobb Hospital Wellstar Douglas Hospital Wellstar Paulding Medical Center Wellstar Windy Hill Hospital Wellstar Kennestone Hospital Wellstar North Fulton Hospital
Office Locations
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www.wellstar.org/physicians/daniela-guilliam-md
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