
Overview
Dr. Walker is board certified in internal medicine, pulmonary disease, critical care medicine and pediatrics. He earned his medical degree from West Virginia University. He completed his internship and residency at Virginia Commonwealth University Medical Center, followed by a clinical fellowship at the University of Rochester. Dr. Walker is a fellow of the American College of Chest Physicians and the American Academy of Pediatrics, as well as a member of the American Thoracic Society. He has published numerous scientific articles in peer-reviewed medical journals.
Dr. Walker specializes in airway disease, especially bronchiectasis and cystic fibrosis. He is passionate about improving the quality of life in patients with these diseases.
In his spare time, Dr. Walker enjoys cooking, traveling, and trying in vain to stay in shape.
Dr. Walker welcomes new patients and accepts most insurance plans.
Dr. Walker is highly rated in 17 conditions, according to our data. His top areas of expertise are Bronchiectasis, Cystic Fibrosis, Lung Metastases, Liver Failure, and Gastrostomy.
His clinical research consists of co-authoring 7 peer reviewed articles and participating in 2 clinical trials. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- HMO
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- POS
- PPO
- HMO
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- INSURANCE PLAN
- MEDICARE MAPD
Accepted plan types not found. Please verify directly with the provider.
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER MEDICARE
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE PART D
- EPO
- HMO
- PPO
- INSURANCE PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- PPO
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
- MEDICARE DISCOUNT CARD
- MEDICARE PDP
- OTHER MEDICARE
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
275 Collier Road NW, Suite 300, Atlanta, GA 30309
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
2 Clinical Trials
Piedmont Physicians Pulmonary And Sleep Medicine Buckhead
Amy Hajari Case, M.D., FCCP, received her undergraduate degree from Birmingham-Southern College and earned her medical degree from the University of Alabama at Birmingham in 2005. She completed her internal medicine residency and pulmonary and critical care medicine fellowship at the University of Alabama at Birmingham. Prior to joining Piedmont Physicians, Dr. Hajari Case was in practice with Georgia Lung Associates. She holds board certifications in critical care medicine, pulmonary disease and internal medicine. She is a member of the American Thoracic Society and a fellow of the American College of Chest Physicians. Dr. Hajari Case specializes in the diagnosis and management of patients with interstitial lung diseases. She leads a monthly support group for patients with pulmonary fibrosis in Austell, and she is on the steering committee for the ACCP Interstitial and Diffuse Lung Disease NetWork. She is the Director of the Interstitial Lung Disease Program and Research department at Piedmont Physicians Georgia Lung. Dr. Hajari Case enjoys bringing her patients the opportunity to receive new medications and cutting edge treatments. She is also interested in medical education and leads a bi-monthly pulmonary and critical care journal club meeting. In her spare time, Dr. Hajari Case enjoys traveling, listening to live music, and musical theatre. Dr. Hajari Case welcomes new patients and accepts most insurance plans. Dr. Case is highly rated in 11 conditions, according to our data. Her top areas of expertise are Acute Interstitial Pneumonia, Interstitial Lung Disease, Idiopathic Pulmonary Fibrosis, Lung Transplant, and Gastrostomy.
Emory Transplant Center
Ram Subramanian is an Intensive Care Medicine provider in Atlanta, Georgia. Dr. Subramanian has been practicing medicine for over 28 years is highly rated in 1 condition, according to our data. His top areas of expertise are Liver Failure, Nonalcoholic Steatohepatitis (NASH), Non-Alcoholic Fatty Liver Disease, and Endoscopy.
Piedmont Physicians Pulmonary And Sleep Medicine Marietta
Brion J. Lock, M.D., graduated with a bachelor of arts degree from Kalamazoo College in Kalamazoo, Mich. He earned his medical degree from Wayne State University School of Medicine in Detroit, Mich. He completed his residency in internal medicine at the University of Alabama at Birmingham. Dr. Lock was chosen to serve as chief resident for one year after completion of his internal medicine residency in 2002. He stayed at UAB to complete his pulmonary and critical care fellowship and served as chief fellow during his final year of training.Dr. Lock is described as hard working and passionate about the practice of medicine. His colleagues consider him to be very energetic and industrious with regard to patient care. Prior to joining Piedmont Physicians, Dr. Lock was in practice with Georgia Lung Associates for 7 years. Dr. Lock is board certified in critical care and pulmonary disease, and specializes in cough and airways diseases including asthma, COPD, and bronchiectasis.In his spare time, Dr. Lock enjoys sports, cooking, and traveling with his family.Dr. Lock welcomes new patients and accepts most insurance plans. Dr. Lock is highly rated in 35 conditions, according to our data. His top areas of expertise are Chronic Cough, Lung Metastases, Bronchiectasis, Lung Nodules, and Advanced Bronchoscopy.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Distinguished
- BronchiectasisDr. Walker isDistinguished. Learn about Bronchiectasis.
- Advanced
- Acute Interstitial PneumoniaDr. Walker isAdvanced. Learn about Acute Interstitial Pneumonia.
- Atypical PneumoniaDr. Walker isAdvanced. Learn about Atypical Pneumonia.
- Bronchogenic CystDr. Walker isAdvanced. Learn about Bronchogenic Cyst.
- BullaeDr. Walker isAdvanced. Learn about Bullae.
- Chronic Obstructive Pulmonary Disease (COPD)
- Cystic FibrosisDr. Walker isAdvanced. Learn about Cystic Fibrosis.
- Experienced
- Acute PancreatitisDr. Walker isExperienced. Learn about Acute Pancreatitis.
- Acute Respiratory Distress Syndrome (ARDS)
- ALK-Positive Non-Small Cell Lung CancerDr. Walker isExperienced. Learn about ALK-Positive Non-Small Cell Lung Cancer.
- Allergic Bronchopulmonary AspergillosisDr. Walker isExperienced. Learn about Allergic Bronchopulmonary Aspergillosis.
- AnemiaDr. Walker isExperienced. Learn about Anemia.
- AspergillosisDr. Walker isExperienced. Learn about Aspergillosis.


