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Dr. Juan Carlos Armstrong received his bachelor’s degree in biology from the University of Puerto Rico in Rio Piedras, Puerto Rico. Dr. Armstrong received his medical degree from the Central University of the Caribbean in Bayamon, Puerto Rico. He completed his internship, internal medicine residency and pulmonary medicine fellowship with Tulane University School of Medicine in New Orleans, La.
Dr. Armstrong currently is in practice with Wellstar Pulmonary Medicine.
Specialties
Pulmonary Medicine
Critical Care Medicine
Education & Training
Tulane University School of Medicine
Universidad Central del Caribe
Certifications
National Board of Physicians and Surgeons
Hospital Affiliations
Wellstar Cobb Hospital
Wellstar Douglas Hospital
Wellstar Kennestone Hospital
Wellstar Paulding Hospital
Wellstar Windy Hill Hospital
Wellstar West Georgia Medical Center
Languages spoken
English
Spanish
Patient Reviews
Overall patient rating
4.8
4.8
Based on 356 patient ratings
I'd recommend this provider to family and friends
4.90
Listened to me carefully
4.89
Shared the right amount of information
4.85
Earned my trust
4.78
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
Dr Armstrong is the best he helped save my life and has monitored my lung disease from the beginning I am so glad I found him as my pulmonologist
April 13, 2024
5
Dr Armstrong made me feel comfortable. He explained the situation very well.
April 13, 2024
5
Dr. Armstrong, is so awesome. He listens to you and works with you for the best solution. He is the best! The staff are great also.
April 13, 2024
5
Thank you for listening to my husband at his latest visit. I was unable to be there in person but appreciate sharing my concerns via the phone!
April 11, 2024
5
Dr Armstrong is so nice and he really listens to what I have to say and he cares about me and he makes sure I understand what I need to do! He is the best!
April 11, 2024
5
Dr Armstrong is very caring & listened to what I said. He provided easy to understand instructions about the medication prescribed.
April 11, 2024
1
I came to this provider with pronounced shortness of breath. He immediately said it was the heart when I literally just had a heart cath so it's not that. The pain and shortness of breath continue and his response to a CT with collapsed lower lung and mosaic attenuation was to take deep breaths. Without treatment I may end up with scar tissue and permanent lung issues. The symptoms continue and I have been dismissed.
April 13, 2024
5
The doctor and staff were very professional.
March 31, 2024
5
Dr Armstrong is amazing. Christy and Marlo are very friendly and helpful. The ladies at check out were awesome and they very sweet nurse who gave me my shots and checked blood pressure was fantastic. I really liked her.
March 29, 2024
5
Dr J Armstrong is a good doctor and friend to his clients
March 30, 2024
5
Great doctor and staff.
March 29, 2024
5
I seldom trust people immediately, but Dr. Armstrong came in. We developed a rapport, he examined me. He explained in very clear language what my problem was and how we were going to solve it, not how he was going to solve it, how we were going to solve it. He gave me some medicine there in his office, I tried it and I went from being 72 years old to like 21. I didn't have any breathing problems. I've been using medicine for three days and it's working just like he said it would. I trust the man implicitly. I'm a former navy seal and I seldom trust people, but Dr. Armstrong, I will listen and follow his advice. Thank you.
March 29, 2024
5
Dr. Armstrong and his staff are just wonderful. Highly recommend.
March 25, 2024
5
Dr. Armstrong listened to my concerns. I trust his treatment plan will help me feel better. He was very pleasant & I didn't feel rushed.
March 25, 2024
5
Dr. Armstrong is a very caring and compassionate doctor, always taking time to explain everything and giving each patient the best care possible.
March 24, 2024
5
I appreciate the professional way things were handled, the respect and courtesy showed.
March 24, 2024
5
The only issue I encountered were the ladies which take your stickers in the waiting room in radiology/lab. They were clearly more occupied with conversation than attending to patients walking in.
March 23, 2024
5
Great doctor great service
March 21, 2024
5
Great
March 20, 2024
5
I trust Dr. Armstrong with all my pulmonary needs.
March 13, 2024
5
Nice to find people who seemed to care about my health.
March 9, 2024
3
It would have been nice to know in advance the it was not covered by insurance
March 9, 2024
5
I use a CPAP and need to download information from my machine once a year for work related purposes. The Acworth and Austell locations are unable to download the data from my (RESVENT) CPAP machine. That needs to be remedied.
March 9, 2024
5
Dr Armstrong listened, asked about my toxic chemicals exposure, reviewed medical tests results, and told me about Agent Orange symptoms. Attention to details!
March 9, 2024
5
I really like my doctor and doctor. I can't even talk. And he's fantastic. He really is. His office is great. They're fun. They're happy. He's always happy. And I've told many, many people about how great he is. And he really has helped me. I had terrible COVID and he has really pulled me through and I'm getting into a new program to help with my lungs. So I think he's very on it with all the new things that are out there available to us this COVID. And he's always compassionate. I could tell he cares. But anyway, that's how I feel. He's an excellent doctor and he's right on it.
March 9, 2024
5
Many thanks to the Doctor and all the staff for their good performance and for always being pleasant.
March 8, 2024
5
Dr. Armstrong is a wonderful doctor. I feel very fortunate to have him as my doctor.
March 8, 2024
5
Good job thx guys
March 8, 2024
5
At this time I am very satisfied with this provider.
March 10, 2024
3
I trust Dr. Armstrong. I just wish they could find out why I still have this cough two years later.
March 8, 2024
5
Dr Armstrong is the best he helped save my life and has monitored my lung disease from the beginning I am so glad I found him as my pulmonologist
April 13, 2024
5
Dr Armstrong made me feel comfortable. He explained the situation very well.
April 13, 2024
5
Dr. Armstrong, is so awesome. He listens to you and works with you for the best solution. He is the best! The staff are great also.
April 13, 2024
5
Thank you for listening to my husband at his latest visit. I was unable to be there in person but appreciate sharing my concerns via the phone!
April 11, 2024
5
Dr Armstrong is so nice and he really listens to what I have to say and he cares about me and he makes sure I understand what I need to do! He is the best!
April 11, 2024
5
Dr Armstrong is very caring & listened to what I said. He provided easy to understand instructions about the medication prescribed.
April 11, 2024
5
The doctor and staff were very professional.
March 31, 2024
5
Dr Armstrong is amazing. Christy and Marlo are very friendly and helpful. The ladies at check out were awesome and they very sweet nurse who gave me my shots and checked blood pressure was fantastic. I really liked her.
March 29, 2024
5
Dr J Armstrong is a good doctor and friend to his clients
March 30, 2024
5
Great doctor and staff.
March 29, 2024
5
I seldom trust people immediately, but Dr. Armstrong came in. We developed a rapport, he examined me. He explained in very clear language what my problem was and how we were going to solve it, not how he was going to solve it, how we were going to solve it. He gave me some medicine there in his office, I tried it and I went from being 72 years old to like 21. I didn't have any breathing problems. I've been using medicine for three days and it's working just like he said it would. I trust the man implicitly. I'm a former navy seal and I seldom trust people, but Dr. Armstrong, I will listen and follow his advice. Thank you.
March 29, 2024
5
Dr. Armstrong and his staff are just wonderful. Highly recommend.
March 25, 2024
5
Dr. Armstrong listened to my concerns. I trust his treatment plan will help me feel better. He was very pleasant & I didn't feel rushed.
March 25, 2024
5
Dr. Armstrong is a very caring and compassionate doctor, always taking time to explain everything and giving each patient the best care possible.
March 24, 2024
5
I appreciate the professional way things were handled, the respect and courtesy showed.
March 24, 2024
5
The only issue I encountered were the ladies which take your stickers in the waiting room in radiology/lab. They were clearly more occupied with conversation than attending to patients walking in.
March 23, 2024
5
Great doctor great service
March 21, 2024
5
Great
March 20, 2024
5
I trust Dr. Armstrong with all my pulmonary needs.
March 13, 2024
5
Nice to find people who seemed to care about my health.
March 9, 2024
5
I use a CPAP and need to download information from my machine once a year for work related purposes. The Acworth and Austell locations are unable to download the data from my (RESVENT) CPAP machine. That needs to be remedied.
March 9, 2024
5
Dr Armstrong listened, asked about my toxic chemicals exposure, reviewed medical tests results, and told me about Agent Orange symptoms. Attention to details!
March 9, 2024
5
I really like my doctor and doctor. I can't even talk. And he's fantastic. He really is. His office is great. They're fun. They're happy. He's always happy. And I've told many, many people about how great he is. And he really has helped me. I had terrible COVID and he has really pulled me through and I'm getting into a new program to help with my lungs. So I think he's very on it with all the new things that are out there available to us this COVID. And he's always compassionate. I could tell he cares. But anyway, that's how I feel. He's an excellent doctor and he's right on it.
March 9, 2024
5
Many thanks to the Doctor and all the staff for their good performance and for always being pleasant.
March 8, 2024
5
Dr. Armstrong is a wonderful doctor. I feel very fortunate to have him as my doctor.
March 8, 2024
5
Good job thx guys
March 8, 2024
5
At this time I am very satisfied with this provider.
March 10, 2024
3
It would have been nice to know in advance the it was not covered by insurance
March 9, 2024
3
I trust Dr. Armstrong. I just wish they could find out why I still have this cough two years later.
March 8, 2024
1
I came to this provider with pronounced shortness of breath. He immediately said it was the heart when I literally just had a heart cath so it's not that. The pain and shortness of breath continue and his response to a CT with collapsed lower lung and mosaic attenuation was to take deep breaths. Without treatment I may end up with scar tissue and permanent lung issues. The symptoms continue and I have been dismissed.
April 13, 2024
1
I came to this provider with pronounced shortness of breath. He immediately said it was the heart when I literally just had a heart cath so it's not that. The pain and shortness of breath continue and his response to a CT with collapsed lower lung and mosaic attenuation was to take deep breaths. Without treatment I may end up with scar tissue and permanent lung issues. The symptoms continue and I have been dismissed.
April 13, 2024
3
It would have been nice to know in advance the it was not covered by insurance
March 9, 2024
3
I trust Dr. Armstrong. I just wish they could find out why I still have this cough two years later.
March 8, 2024
5
Dr Armstrong is the best he helped save my life and has monitored my lung disease from the beginning I am so glad I found him as my pulmonologist
April 13, 2024
5
Dr Armstrong made me feel comfortable. He explained the situation very well.
April 13, 2024
5
Dr. Armstrong, is so awesome. He listens to you and works with you for the best solution. He is the best! The staff are great also.
April 13, 2024
5
Thank you for listening to my husband at his latest visit. I was unable to be there in person but appreciate sharing my concerns via the phone!
April 11, 2024
5
Dr Armstrong is so nice and he really listens to what I have to say and he cares about me and he makes sure I understand what I need to do! He is the best!
April 11, 2024
5
Dr Armstrong is very caring & listened to what I said. He provided easy to understand instructions about the medication prescribed.
April 11, 2024
5
The doctor and staff were very professional.
March 31, 2024
5
Dr Armstrong is amazing. Christy and Marlo are very friendly and helpful. The ladies at check out were awesome and they very sweet nurse who gave me my shots and checked blood pressure was fantastic. I really liked her.
March 29, 2024
5
Dr J Armstrong is a good doctor and friend to his clients
March 30, 2024
5
Great doctor and staff.
March 29, 2024
5
I seldom trust people immediately, but Dr. Armstrong came in. We developed a rapport, he examined me. He explained in very clear language what my problem was and how we were going to solve it, not how he was going to solve it, how we were going to solve it. He gave me some medicine there in his office, I tried it and I went from being 72 years old to like 21. I didn't have any breathing problems. I've been using medicine for three days and it's working just like he said it would. I trust the man implicitly. I'm a former navy seal and I seldom trust people, but Dr. Armstrong, I will listen and follow his advice. Thank you.
March 29, 2024
5
Dr. Armstrong and his staff are just wonderful. Highly recommend.
March 25, 2024
5
Dr. Armstrong listened to my concerns. I trust his treatment plan will help me feel better. He was very pleasant & I didn't feel rushed.
March 25, 2024
5
Dr. Armstrong is a very caring and compassionate doctor, always taking time to explain everything and giving each patient the best care possible.
March 24, 2024
5
I appreciate the professional way things were handled, the respect and courtesy showed.
March 24, 2024
5
The only issue I encountered were the ladies which take your stickers in the waiting room in radiology/lab. They were clearly more occupied with conversation than attending to patients walking in.
March 23, 2024
5
Great doctor great service
March 21, 2024
5
Great
March 20, 2024
5
I trust Dr. Armstrong with all my pulmonary needs.
March 13, 2024
5
Nice to find people who seemed to care about my health.
March 9, 2024
5
I use a CPAP and need to download information from my machine once a year for work related purposes. The Acworth and Austell locations are unable to download the data from my (RESVENT) CPAP machine. That needs to be remedied.
March 9, 2024
5
Dr Armstrong listened, asked about my toxic chemicals exposure, reviewed medical tests results, and told me about Agent Orange symptoms. Attention to details!
March 9, 2024
5
I really like my doctor and doctor. I can't even talk. And he's fantastic. He really is. His office is great. They're fun. They're happy. He's always happy. And I've told many, many people about how great he is. And he really has helped me. I had terrible COVID and he has really pulled me through and I'm getting into a new program to help with my lungs. So I think he's very on it with all the new things that are out there available to us this COVID. And he's always compassionate. I could tell he cares. But anyway, that's how I feel. He's an excellent doctor and he's right on it.
March 9, 2024
5
Many thanks to the Doctor and all the staff for their good performance and for always being pleasant.
March 8, 2024
5
Dr. Armstrong is a wonderful doctor. I feel very fortunate to have him as my doctor.
March 8, 2024
5
Good job thx guys
March 8, 2024
5
At this time I am very satisfied with this provider.
March 10, 2024
5
Dr Armstrong is the best he helped save my life and has monitored my lung disease from the beginning I am so glad I found him as my pulmonologist
April 13, 2024
5
Dr. Armstrong, is so awesome. He listens to you and works with you for the best solution. He is the best! The staff are great also.
April 13, 2024
1
I came to this provider with pronounced shortness of breath. He immediately said it was the heart when I literally just had a heart cath so it's not that. The pain and shortness of breath continue and his response to a CT with collapsed lower lung and mosaic attenuation was to take deep breaths. Without treatment I may end up with scar tissue and permanent lung issues. The symptoms continue and I have been dismissed.
April 13, 2024
5
Dr Armstrong made me feel comfortable. He explained the situation very well.
April 13, 2024
5
Thank you for listening to my husband at his latest visit. I was unable to be there in person but appreciate sharing my concerns via the phone!
April 11, 2024
5
Dr Armstrong is so nice and he really listens to what I have to say and he cares about me and he makes sure I understand what I need to do! He is the best!
April 11, 2024
5
Dr Armstrong is very caring & listened to what I said. He provided easy to understand instructions about the medication prescribed.
April 11, 2024
5
The doctor and staff were very professional.
March 31, 2024
5
Dr J Armstrong is a good doctor and friend to his clients
March 30, 2024
5
Great doctor and staff.
March 29, 2024
5
Dr Armstrong is amazing. Christy and Marlo are very friendly and helpful. The ladies at check out were awesome and they very sweet nurse who gave me my shots and checked blood pressure was fantastic. I really liked her.
March 29, 2024
5
I seldom trust people immediately, but Dr. Armstrong came in. We developed a rapport, he examined me. He explained in very clear language what my problem was and how we were going to solve it, not how he was going to solve it, how we were going to solve it. He gave me some medicine there in his office, I tried it and I went from being 72 years old to like 21. I didn't have any breathing problems. I've been using medicine for three days and it's working just like he said it would. I trust the man implicitly. I'm a former navy seal and I seldom trust people, but Dr. Armstrong, I will listen and follow his advice. Thank you.
March 29, 2024
5
Dr. Armstrong and his staff are just wonderful. Highly recommend.
March 25, 2024
5
Dr. Armstrong listened to my concerns. I trust his treatment plan will help me feel better. He was very pleasant & I didn't feel rushed.
March 25, 2024
5
I appreciate the professional way things were handled, the respect and courtesy showed.
March 24, 2024
5
Dr. Armstrong is a very caring and compassionate doctor, always taking time to explain everything and giving each patient the best care possible.
March 24, 2024
5
The only issue I encountered were the ladies which take your stickers in the waiting room in radiology/lab. They were clearly more occupied with conversation than attending to patients walking in.
March 23, 2024
5
Great doctor great service
March 21, 2024
5
Great
March 20, 2024
5
I trust Dr. Armstrong with all my pulmonary needs.
March 13, 2024
5
At this time I am very satisfied with this provider.
March 10, 2024
3
It would have been nice to know in advance the it was not covered by insurance
March 9, 2024
5
I use a CPAP and need to download information from my machine once a year for work related purposes. The Acworth and Austell locations are unable to download the data from my (RESVENT) CPAP machine. That needs to be remedied.
March 9, 2024
5
Dr Armstrong listened, asked about my toxic chemicals exposure, reviewed medical tests results, and told me about Agent Orange symptoms. Attention to details!
March 9, 2024
5
Nice to find people who seemed to care about my health.
March 9, 2024
5
I really like my doctor and doctor. I can't even talk. And he's fantastic. He really is. His office is great. They're fun. They're happy. He's always happy. And I've told many, many people about how great he is. And he really has helped me. I had terrible COVID and he has really pulled me through and I'm getting into a new program to help with my lungs. So I think he's very on it with all the new things that are out there available to us this COVID. And he's always compassionate. I could tell he cares. But anyway, that's how I feel. He's an excellent doctor and he's right on it.
March 9, 2024
5
Many thanks to the Doctor and all the staff for their good performance and for always being pleasant.
March 8, 2024
5
Dr. Armstrong is a wonderful doctor. I feel very fortunate to have him as my doctor.
March 8, 2024
3
I trust Dr. Armstrong. I just wish they could find out why I still have this cough two years later.
March 8, 2024
5
Good job thx guys
March 8, 2024
5
Good job thx guys
March 8, 2024
3
I trust Dr. Armstrong. I just wish they could find out why I still have this cough two years later.
March 8, 2024
5
Dr. Armstrong is a wonderful doctor. I feel very fortunate to have him as my doctor.
March 8, 2024
5
Many thanks to the Doctor and all the staff for their good performance and for always being pleasant.
March 8, 2024
5
I really like my doctor and doctor. I can't even talk. And he's fantastic. He really is. His office is great. They're fun. They're happy. He's always happy. And I've told many, many people about how great he is. And he really has helped me. I had terrible COVID and he has really pulled me through and I'm getting into a new program to help with my lungs. So I think he's very on it with all the new things that are out there available to us this COVID. And he's always compassionate. I could tell he cares. But anyway, that's how I feel. He's an excellent doctor and he's right on it.
March 9, 2024
5
Nice to find people who seemed to care about my health.
March 9, 2024
5
Dr Armstrong listened, asked about my toxic chemicals exposure, reviewed medical tests results, and told me about Agent Orange symptoms. Attention to details!
March 9, 2024
5
I use a CPAP and need to download information from my machine once a year for work related purposes. The Acworth and Austell locations are unable to download the data from my (RESVENT) CPAP machine. That needs to be remedied.
March 9, 2024
3
It would have been nice to know in advance the it was not covered by insurance
March 9, 2024
5
At this time I am very satisfied with this provider.
March 10, 2024
5
I trust Dr. Armstrong with all my pulmonary needs.
March 13, 2024
5
Great
March 20, 2024
5
Great doctor great service
March 21, 2024
5
The only issue I encountered were the ladies which take your stickers in the waiting room in radiology/lab. They were clearly more occupied with conversation than attending to patients walking in.
March 23, 2024
5
Dr. Armstrong is a very caring and compassionate doctor, always taking time to explain everything and giving each patient the best care possible.
March 24, 2024
5
I appreciate the professional way things were handled, the respect and courtesy showed.
March 24, 2024
5
Dr. Armstrong listened to my concerns. I trust his treatment plan will help me feel better. He was very pleasant & I didn't feel rushed.
March 25, 2024
5
Dr. Armstrong and his staff are just wonderful. Highly recommend.
March 25, 2024
5
I seldom trust people immediately, but Dr. Armstrong came in. We developed a rapport, he examined me. He explained in very clear language what my problem was and how we were going to solve it, not how he was going to solve it, how we were going to solve it. He gave me some medicine there in his office, I tried it and I went from being 72 years old to like 21. I didn't have any breathing problems. I've been using medicine for three days and it's working just like he said it would. I trust the man implicitly. I'm a former navy seal and I seldom trust people, but Dr. Armstrong, I will listen and follow his advice. Thank you.
March 29, 2024
5
Dr Armstrong is amazing. Christy and Marlo are very friendly and helpful. The ladies at check out were awesome and they very sweet nurse who gave me my shots and checked blood pressure was fantastic. I really liked her.
March 29, 2024
5
Great doctor and staff.
March 29, 2024
5
Dr J Armstrong is a good doctor and friend to his clients
March 30, 2024
5
The doctor and staff were very professional.
March 31, 2024
5
Dr Armstrong is very caring & listened to what I said. He provided easy to understand instructions about the medication prescribed.
April 11, 2024
5
Dr Armstrong is so nice and he really listens to what I have to say and he cares about me and he makes sure I understand what I need to do! He is the best!
April 11, 2024
5
Thank you for listening to my husband at his latest visit. I was unable to be there in person but appreciate sharing my concerns via the phone!
April 11, 2024
5
Dr Armstrong made me feel comfortable. He explained the situation very well.
April 13, 2024
1
I came to this provider with pronounced shortness of breath. He immediately said it was the heart when I literally just had a heart cath so it's not that. The pain and shortness of breath continue and his response to a CT with collapsed lower lung and mosaic attenuation was to take deep breaths. Without treatment I may end up with scar tissue and permanent lung issues. The symptoms continue and I have been dismissed.
April 13, 2024
5
Dr. Armstrong, is so awesome. He listens to you and works with you for the best solution. He is the best! The staff are great also.
April 13, 2024
5
Dr Armstrong is the best he helped save my life and has monitored my lung disease from the beginning I am so glad I found him as my pulmonologist