Enid Neptune
Advanced in Chronic Obstructive Pulmonary Disease (COPD)

Dr. Enid Neptune

Pulmonary Medicine
Johns Hopkins Medicine
Johns Hopkins Bayview Medical Center
5501 Hopkins Bayview Circle, Allergy & Asthma Center, 2nd Floor, Allergy & Asthma Center, 2nd Floor, 
Baltimore, MD 

Advanced in Chronic Obstructive Pulmonary Disease (COPD)
Johns Hopkins Medicine
Johns Hopkins Bayview Medical Center
5501 Hopkins Bayview Circle, Allergy & Asthma Center, 2nd Floor, Allergy & Asthma Center, 2nd Floor, 
Baltimore, MD 
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Overview

Dr. Neptune is a pulmonary, critical care physician with expertise in genetic disorders of the matrix with pulmonary manifestations. She is also skilled in the management of patients with advanced obstructive lung disease, especially emphysema. Dr. Neptune has extensive expertise in the diagnosis and management of the pulmonary complications of Marfan Syndrome, Loeys-Dietz Syndrome, vascular Ehlers Danlos Syndrome and other matrix disorders and serves on the Professional Advisory Board of the Marfan Foundation. She is also an expert on tobacco dependence and is the Vice-Chair of the Tobacco Action Committee of the American Thoracic Society. Dr. Neptune earned her M.D. from Harvard Medical School. She completed her residency and performed a fellowship in pulmonary and critical care at the University of California, San Francisco. She also performed a fellowship in genetics at Johns Hopkins. Her research interests include therapeutic strategies in Marfan syndrome; mechanisms and prevention of progression of COPD; and hepatocyte growth factor signaling in airspace homeostasis. Dr. Neptune is committed to creating a diverse research community and clinical workforce. She is involved in multiple diversity initiatives at Johns Hopkins and the American Thoracic Society. She is also involved in increasing awareness of tobacco dependence and the needed regulatory policies. Dr. Neptune serves on the Compliance Compensation Subcommittee for the Department of Medicine.

Dr. Neptune is rated as an Advanced provider by MediFind in the treatment of Chronic Obstructive Pulmonary Disease (COPD). Her top areas of expertise are Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome), Acute Interstitial Pneumonia, Interstitial Lung Disease, and Emphysema.

Her clinical research consists of co-authoring 64 peer reviewed articles. MediFind looks at clinical research from the past 15 years. In particular, she has co-authored 13 articles in the study of Chronic Obstructive Pulmonary Disease (COPD).

Residency
University of California, San Francisco, School of Medicine, Internal Medicine, 1991
Specialties
Pulmonary Medicine
Licenses
Critical Care Medicine in MD
Board Certifications
American Board Of Internal Medicine
Fellowships
University of California, San Francisco, School of Medicine, Pulmonary and Critical Care Medicine, 1998
Hospital Affiliations
The Johns Hopkins Hospital
Johns Hopkins Bayview Medical Center
Languages Spoken
English
Spanish
Gender
Female

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Aetna
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Locations

Johns Hopkins Bayview Medical Center
5501 Hopkins Bayview Circle, Allergy & Asthma Center, 2nd Floor, Allergy & Asthma Center, 2nd Floor, Baltimore, MD 21224
Call: 410-550-5864

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.


66 Total Publications

Treatment of Nicotine Use in Adolescents Under 18 Years of Age: An Official American Thoracic Society Clinical Practice Guideline.
Treatment of Nicotine Use in Adolescents Under 18 Years of Age: An Official American Thoracic Society Clinical Practice Guideline.
Journal: American journal of respiratory and critical care medicine
Published: August 29, 2025
View All 66 Publications
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5501 Hopkins Bayview Circle, Allergy & Asthma Center, 2nd Floor, Allergy & Asthma Center, 2nd Floor, 
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 (1.2 miles away)
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Baltimore, MD 
 (0.1 miles away)
410-550-5864
Languages Spoken:
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Dr. Putcha is a pulmonary and critical care physician. She is an expert in the diagnosis and treatment of lung disease (specifically obstructive lung diseases such as COPD and asthma), and in the care of critically ill patients in the Medical ICU. She is a member of the Lung Research Conference Planning Committee and provides teaching to medical students and residents at Johns Hopkins. Dr. Putcha is rated as a Distinguished provider by MediFind in the treatment of Chronic Obstructive Pulmonary Disease (COPD). Her top areas of expertise are Chronic Obstructive Pulmonary Disease (COPD), Emphysema, Cerebral Hypoxia, and Asthma.

Meredith Mccormack
Elite in Chronic Obstructive Pulmonary Disease (COPD)
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Elite in Chronic Obstructive Pulmonary Disease (COPD)
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Pulmonary Medicine

Johns Hopkins Bayview Medical Center

5501 Hopkins Bayview Circle, Allergy & Asthma Center, 2nd Floor, Allergy & Asthma Center, 2nd Floor, 
Baltimore, MD 
 (1.2 miles away)
410-550-5864
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Dr. McCormack is a pulmonary, critical care physician and Associate Director of the Pulmonary & Critical Care Medicine Division. She is an expert in the diagnosis and treatment of patients with obstructive lung disease, including those with asthma and COPD. She has expertise in pulmonary physiology. She serves as the Medical Director of the Johns Hopkins University Pulmonary Function Laboratory and as the Chair of the American Thoracic Society Pulmonary Function Test Committee. She earned her M.D. from Jefferson Medical College of Thomas Jefferson University and her M.H.S. from the Bloomberg School of Public Health. She completed her residency at Thomas Jefferson University Hospital and performed a fellowship in pulmonary and critical care medicine at Johns Hopkins. She was the recipient of the Frederick L. Brancati Excellence in Mentoring Award. She plays an active role in mentoring fellows and junior faculty in the Pulmonary & Critical Care Medicine Division. Dr. Mccormack is rated as a Distinguished provider by MediFind in the treatment of Chronic Obstructive Pulmonary Disease (COPD). Her top areas of expertise are Chronic Obstructive Pulmonary Disease (COPD), Asthma, Acute Interstitial Pneumonia, Interstitial Lung Disease, and Lung Transplant.

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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.

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Find Dr. Neptune's expertise for a condition
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    • Distinguished
    • Acute Interstitial Pneumonia
      Dr. Neptune is
      Distinguished
      . Learn about Acute Interstitial Pneumonia.
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    • Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome)
      Dr. Neptune is
      Distinguished
      . Learn about Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome).
      See more Eosinophilic Granulomatosis with Polyangiitis (EGPA, Churg-Strauss Syndrome) experts
    • Interstitial Lung Disease
      Dr. Neptune is
      Distinguished
      . Learn about Interstitial Lung Disease.
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    • Advanced
    • Chronic Obstructive Pulmonary Disease (COPD)
      Dr. Neptune is
      Advanced
      . Learn about Chronic Obstructive Pulmonary Disease (COPD).
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    • Emphysema
      Dr. Neptune is
      Advanced
      . Learn about Emphysema.
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    • Experienced
    • Bronchiectasis
      Dr. Neptune is
      Experienced
      . Learn about Bronchiectasis.
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    • Bronchogenic Cyst
      Dr. Neptune is
      Experienced
      . Learn about Bronchogenic Cyst.
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    • Bullae
      Dr. Neptune is
      Experienced
      . Learn about Bullae.
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    • Central Sleep Apnea
      Dr. Neptune is
      Experienced
      . Learn about Central Sleep Apnea.
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    • Cerebral Hypoxia
      Dr. Neptune is
      Experienced
      . Learn about Cerebral Hypoxia.
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    • Chronic Eosinophilic Pneumonia
      Dr. Neptune is
      Experienced
      . Learn about Chronic Eosinophilic Pneumonia.
      See more Chronic Eosinophilic Pneumonia experts
    View All 17 Experienced Conditions
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