Nathan K. Cobb, MD| Critical Care Medicine, Pulmonology | MedStar Health
Nathan K. Cobb

Nathan K. Cobb, MD
Provider is directly employed by MedStar Health

Specialties: Critical Care Medicine, Pulmonology

Languages: Spanish, English

This doctor only sees patients in a hospital setting and does not schedule visits.

About me

Nathan Cobb, MD, is a critical care physician at MedStar Georgetown University Hospital and Assistant Professor at Georgetown University School of Medicine. He is a recognized expert in the field of digital behavioral change interventions and tobacco control, and serves as the Clinical Lead with MedStar's Digital Transformation efforts.

Clinical areas of focus

  • Bronchoscopy
  • Thoracentesis
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Conditions and procedures

Conditions I treat

  • Airway Disorders
  • Novel Coronavirus
  • Pleural Diseases
  • Pulmonary Infections
  • Septic Shock
  • Severe Acute Respiratory Syndrome
  • Status Asthmaticus
  • Tobacco-Related Diseases
  • Ventilator Dependent
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Procedures I perform

  • Bronchoscopy
  • Mechanical Ventilation
  • Right Heart Catheterization
  • Thoracentesis
  • Ventilator Management
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Practice locations

Distance from Change LocationEnter your Location

3800 Reservoir Road Northwest
4 North Main Bldg
Washington, DC, 20007


Fax 202-286-1492

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miles away

Fax 202-286-1492


MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.

  • List of insurance plans we accept
    • Carefirst BlueChoice Opt Out Open Access
    • Cigna POS Open Access & Open Access Plus
    • WellPoint Maryland
    • United Medicare Advantage DSNP District of Columbia
    • United Group Medicare Advantage Plans
    • CareFirst MedStar Select PPO
    • Aetna Managed Choice Open Access (POS)
    • Cigna True Choice Medicare (PPO)
    • Aetna Student Health Insurance
    • Virginia Premier
    • Aetna Traditional Choice (PPO)
    • HumanaChoice PPO
    • Kaiser Medicare Plus
    • Cigna TotalCare (HMO D-SNP)
    • I-SNP
    • Carefirst BlueChoice Open Access
    • United Select HMO - EPO/NPP
    • Kaiser Permanente Signature-Added Choice
    • Aetna HMO
    • Cigna Indemnity
    • United Core Essential (HMO)
    • United Student Resources
    • Carefirst Blue Preferred PPO
    • MedStar Family Choice DC Healthy Families
    • Kaiser Signature
    • Choice Care Network/HUMANA (PPO)
    • Cigna HMO & Network (HMO)
    • Aetna Elect Choice/ Open Access (POS)
    • Kaiser Flexible Choice
    • Kaiser HMO Plus and DHMO Plus Member
    • United Mamsi Life & Health
    • Traditional Medicare Fee for Service
    • CareFirst NASCO
    • Cigna PPO and PPO Plus
    • UnitedHealthcare Individual Exchange Plans
    • United Community Plan - Maryland Health Choice Program
    • Innovation Health: Network Only Plus
    • D-SNP)
    • United MD IPA Preferred (POS)
    • United Options (PPO) (includes Empire PPO)
    • Innovation Health: Open POS II
    • Kaiser Select-Added Choice
    • Tricare for Life East
    • United Nursing Home Plan (C-SNP
    • United AARP Medicare Complete
    • Cigna True Choice Plus Medicare (PPO)
    • United Erickson Advantage Plans
    • MedStar Family Choice DC Healthcare Alliance
    • Kaiser Medicare Advantage Signature and Select
    • Innovation Health: HMO & EPO Plus
    • Cigna Network Open Access
    • CareFirst Blue Card Program (Out-of-area BCBS plans)
    • Aetna Choice POS & Choice POS II
    • Kaiser Select
    • Cigna Preferred Medicare
    • Tricare East Prime
    • United Choice Plus
    • WellPoint Maryland - Maryland Health Choice
    • Veterans Affairs Community Care Network
    • United Select Plus (POS)
    • Aetna Elect Choice/ EPO (Aetna Health Fund)
    • Cigna POS/Network POS
    • United GEHA (for all other states) Compass Rose
    • Carefirst BlueChoice HMO
    • Innovation Health: POS Plus
    • Carefirst EPO
    • Cigna EPO
    • Aetna Open HMO/Open HMO Option/Open EPO Plus
    • Cigna Choice Fund PPO
    • United Choice
    • Aetna Signature Administrator PPO/TPA
    • Maryland Point of Service Plan (MPOS)
    • Carefirst BlueChoice Opt Out Plus Open Access (POS)
    • Anthem (POS & Open Access POS) BCBS of VA HealthKeepers
    • CareFirst BC/BS Advantage Core/Enhanced
    • Police and Fire Clinic
    • Aetna Quality Point of Service (POS)
    • United Optimum Choice
    • Medicaid - District of Columbia
    • Aetna HealthFund/Health Network Option OA
    • CareFirst Administrators
    • Aetna Open Choice (PPO)
    • Tricare East Select
    • Carefirst Healthy Blue (HMO/POS)
    • United Optimum Choice Preferred (POS) & OCI Direct (HMO)
    • Cigna HMO Open Access
    • Cigna Achieve Medicare (HMO C-SNP)
    • Tricare Reserve Select
    • CareFirst Maryland Indemnity or PPO
    • Innovation Health: Indemnity
    • Kaiser Maryland Medicaid MCO
    • CareFirst Group Medicare Advantage
    • Innovation Health: PPO
    • CareFirst MedStar PPO
    • Innovation Health: Open POS Plus
    • CareFirst (NCA) Indemnity
    • United MD IPA (HMO)
    • Medicaid - Virginia
    • United Golden Rule
    • Federal Employee Program (Std/Basic PPO/Blue Focus)
    • Health Services for Children with Special Needs (HSCSN)
    • Aetna HMO-Open Access/Select OA
    • Veterans Affairs Community Care Network (VA CCN)
    • Aetna Select HMO/HealthFund/Health Network
    • Private Health Care Systems (PHCS) (PPO)
    • HealthyBlue PPO
    • Aetna Managed Choice (POS)
    • Medicaid - Maryland
    • Aetna Medicare Advantage HMO & PPO Plans
    • Innovation Health: POS
    • Cigna Alliance Medicare (HMO) |
    • CareFirst Group Medicare Advantage prescription drug benefit (PPO)
    • Anthem HMO - BCBS of VA HealthKeepers
    • Beech Street PPO
    • Innovation Health: Open Network Only Plus
    • United Navigate
    • HumanaChoice Honor’s plan PPO
    • Anthem Plus BCBS of VA HealthKeepers Plus
    • MedStar Family Choice - Maryland Health Choice
    • Coventry Health Care National Network PPO
    • Great-West Healthcare POS/CIGNA
    • First Health PPO
    • Coventry Health Care of Virginia
    • Coventry of Delaware HMO/PPO


Fellowship Program: Massachusetts General Hospital (2008)

Internship/Residency: Beth Israel Deaconess Medical Center (2004)

Medical School: Boston University School of Medicine (2001)

News and publications

Over the past twenty years I have worked at the intersection of behavior change and informatics to develop and evaluate social network based interventions. While there is an emerging evidence base on how social networks impact behavior, less is known or understood about how they can be manipulated to create change. My work has demonstrated feasibility of the approach, demonstrating that networks can be characterized, that diffusion of interventions can be implemented, and that effective interventions can be created. I served as either the primary investigator or co-investigator on all of these studies.
  • Cobb NK, Graham AL, and Abrams DB. Social Network Structure of a Large Online Community for Smoking Cessation. American Journal of Public Health. 2010;100(7):1282-9.
  • Cobb NK, Graham AL, Byron MJ, Niaura RS, Abrams DB, and Workshop Participants. Online social networks and smoking cessation: a scientific research agenda. Journal of Medical Internet Research. Canada; 2011;13(4):e119.
  • Graham AL, Cobb NK, Papandonatos GD, Moreno JL, Kang H, Tinkelman DG, Bock BC, Niaura RS, and Abrams DB. A Randomized Trial of Internet and Telephone Treatment for Smoking Cessation. Archives of Internal Medicine. 2011;171(1):46-53.
  • Cobb NK, Jacobs MA, Wileyto P, Valente T, and Graham AL. Diffusion of an Evidence-Based Smoking Cessation Intervention Through Facebook: A Randomized Controlled Trial. American Journal of Public Health; 2016;106(6):1130-5.
While the previous work has demonstrated that networked based interventions are both feasible and potentially effective for behavior change, the underlying mediators and mechanism remain opaque. I have worked with cross disciplinary teams across academia and industry (as a principal investigator and co-investigator) to explore and then re-implement these methods and techniques. Using data from the prior work we demonstrated that communications can be used to characterize participants, and that exposure to communications predicts future behavior. These techniques were re-used in commercial applications and then evaluated for effect (health education and physical activity).
  • Poirier J, and Cobb NK. Social influence as a driver of engagement in a web-based health intervention. Journal of Medical Internet Research. Canada; 2012;14(1):e36.
  • Cobb NK, Mays D, and Graham AL. Sentiment Analysis to Determine the Impact of Online Messages on Smokers' Choices to Use Varenicline. JNCI Monographs. United States; 2013;2013(47):224-230.
  • Myneni S, Fujimoto K, Cobb N, and Cohen T. Content-Driven Analysis of an Online Community for Smoking Cessation: Integration of Qualitative Techniques, Automated Text Analysis, and Affiliation Networks. American Journal of Public Health; 2015;105(6):1206-1212.
  • Cobb NK, and Poirier J. Effectiveness of a multimodal online well-being intervention: a randomized controlled trial. American Journal of Preventive Medicine; 2014;46(1):41-8.
The bulk of my work has been in informatics, however I have also worked in the emerging field of electronic cigarettes. As PI my group was the first to publish data on the safety of these devices and explored how they are marketed online, demonstrating a complex, “dark” network of affiliates designed to evade legal scrutiny.
  • Cobb NK, Byron MJ, Abrams DB, and Shields PG. Novel nicotine delivery systems and public health: the rise of the "e-cigarette". American Journal of Public Health; 2010;100(12):2340-2342.
  • Cobb NK, Brookover J, Cobb CO. Forensic analysis of online marketing for electronic nicotine delivery systems. Tobacco Control 2013, Sep 13;24(2):128-31. 
  • Cobb NK, Abrams DB. The FDA, e-cigarettes, and the demise of combusted tobacco. New England Journal of Medicine 2014, Oct 16;371(16):1469-71
  • Cobb NK, Sonti R. E-Cigarettes: The science behind the smoke and mirrors. Respiratory Care 2016, Aug;61(8):1122-8.
During the COVID-19 pandemic I have focused on the use of large scale EHR data to inform clinical practice and improve vaccination outcomes. This includes leading the development of the Georgetown/Medstar COVID-19 research registry, work as a clinical informaticist on the R2D2 consortium’s distributed COVID-19 research platform, serving as the site-PI for a BARDA backed adaptive platform pharmaceutical trial (iSPY), EHR based research on the efficacy of inhaled vasodilators (epoprostenol), and the development of MedStar Health’s risk stratification and eligibility algorithms to drive vaccination outreach.