JB
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Brennan, Pulmonologist in Exeter, NH?
Dr. John Brennan, MD is a Pulmonologist, who primarily practices in Exeter, NH with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Brennan graduated from Tufts University School of Medicine and completed his residency at St Francis Hosp Med Ctr, Internal Medicine; Boston City Hosp, Internal Medicine; Worcester City Hosp, General Practice. Dr. Brennan is fluent in English and Arabic, and is currently seeing new patients. Dr. Brennan’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Brennan’s office at (603) 775-0234.
What are Areas of Expertise for Dr. Brennan?
Dr. John Brennan, MD is a highly-rated, board-certified Pulmonologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Brennan empowers patients to confidently navigate their health journey, specializing in Airway Disorders, Lung Cancer, Pulmonary Hypertension, Sepsis & Septic Shock, or comprehensive wellness support. Serving the Exeter/NH community, Dr. Brennan is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Brennan go to medical school and complete their residency?
Residency: St Francis Hosp Med Ctr, Internal Medicine; Boston City Hosp, Internal Medicine; Worcester City Hosp, General Practice | Ri Hospital and Miriam Hospital
Medical School: Georgetown Univ Sch of Med, Washington Dc | Tufts University School of Medicine
Is Dr. Brennan board certified in Pulmonologist?
Yes, Dr. John Brennan, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Brennan speak?
Dr. Brennan and their clinical team can communicate with patients in the following languages:
Arabic
English
What conditions does Dr. Brennan treat?
As a Pulmonologist, Dr. Brennan diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Brennan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- COPD
- COPD Flare-Up
- Chronic Obstructive Pulmonary Disease
- Chronic Lung Disease
- Emphysema and Chronic Bronchitis
- COPD Exacerbation
- Chronic Obstructive Pulmonary Disease Flare-Up
- Worsening COPD
- COPD Attack
ICD-10 Codes:
- J449: Chronic obstructive pulmonary disease, unspecified
- J441: Chronic obstructive pulmonary disease with (acute) exacerbation
Also known as:
- Moderate Persistent Asthma
- Severe Persistent Asthma
- Asthma
- Mild Persistent Asthma
- Mild Intermittent Asthma
- Ongoing Moderate Asthma
- Regular Moderate Asthma
- Chronic Moderate Asthma
- Chronic Severe Asthma
- Difficult-to-Treat Asthma
- Severe Asthma
- Reactive Airway Disease
- Bronchial Asthma
- Allergic Asthma
- Ongoing Mild Asthma
- Regular Mild Asthma
- Chronic Mild Asthma
- Occasional Asthma
- Mild Asthma Attacks
- Infrequent Asthma
ICD-10 Codes:
- J4540: Moderate persistent asthma, uncomplicated
- J4550: Severe persistent asthma, uncomplicated
- J45909: Unspecified asthma, uncomplicated
- J4530: Mild persistent asthma, uncomplicated
- J4520: Mild intermittent asthma, uncomplicated
Also known as:
- Other Abnormal Findings on Lung Scan
- Single Lung Nodule
- Lung Disease
- Unusual Lung Scan Results
- Atypical Lung Imaging
- Nonspecific Lung Abnormality
- Lung Spot
- Pulmonary Nodule
- Spot on Lung Scan
ICD-10 Codes:
- R918: Other nonspecific abnormal finding of lung field
- R911: Solitary pulmonary nodule
Also known as:
- Interstitial Lung Disease
- ILD
- Diffuse Parenchymal Lung Disease
- Chronic Lung Disease
ICD-10 Codes:
- J849: Interstitial pulmonary disease, unspecified
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0602: Shortness of breath
- R0609: Other forms of dyspnea
Also known as:
- Bronchiectasis
- Bronchial Disorder
- Damaged Airways
- Chronic Bronchial Dilation
- Lung Airway Damage
ICD-10 Codes:
- J479: Bronchiectasis, uncomplicated
Also known as:
- Chronic Cough
- Cough
- Persistent cough
- Long-lasting cough
- Ongoing cough
ICD-10 Codes:
- R053: Chronic cough
Also known as:
- Pleural Effusion
- Pleural Disorder
- Fluid in lungs
- Water on the lung
- Fluid around lungs
ICD-10 Codes:
- J90: Pleural effusion, not elsewhere classified
Also known as:
- Emphysema
- Centriacinar Emphysema
- Lung Emphysema
- COPD
ICD-10 Codes:
- J432: Centrilobular emphysema
Also known as:
- Pneumonia
- Lung Infection
- Chest Infection
- Pneumonitis
ICD-10 Codes:
- J189: Pneumonia, unspecified organism
Also known as:
- Sarcoidosis
- Lung and Lymph Node Sarcoidosis
- Pulmonary Sarcoidosis
- Lymphadenopathy Sarcoidosis
ICD-10 Codes:
- D862: Sarcoidosis of lung with sarcoidosis of lymph nodes
Also known as:
- Localized Swollen Lymph Nodes
- Enlarged glands in one area
- Local lymphadenopathy
- Swollen glands
ICD-10 Codes:
- R590: Localized enlarged lymph nodes
Also known as:
- Other Lung Disease
- Lung Disease
- Various lung conditions
- Unspecified lung disorder
- Miscellaneous lung problems
ICD-10 Codes:
- J984: Other disorders of lung
Which procedures does Dr. Brennan perform as a Pulmonologist?
As a Pulmonologist, procedures performed by a Dr. John Brennan may include:
- Bronchoscopy
- Endobronchial Ultrasound (EBUS)
- Interventional Bronchoscopy
- Intrathoracic Adenopathy
- Lung Cancer Screening
- Lung Cancer Staging
- Lung Surgery Consultation
- Mechanical Ventilation
For detailed information, please contact Dr. Brennan's office.
Does Dr. Brennan accept my insurance?
Dr. Brennan accepts most major insurance plans. Important: Please call our office at (603) 775-0234 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Brennan accept in Exeter, NH?
Dr. Brennan in Exeter, NH accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Boston Medical Center
Centene
CVS Health (formerly Aetna)
Department of Veterans Affairs
Elevance Health Inc. (formerly Anthem)
Humana
Martin's Point
Medicare
Point32Health
UnitedHealthcare
View All Insurances
Where is Dr. Brennan's office located?
What is Dr. Brennan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Brennan's National Provider Identifier (NPI) number is 1851339071.
What common questions do patients ask about Dr. Brennan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Brennan
What is Dr. John Brennan's specialty?
Dr. Brennan is a Pulmonologist near Exeter, NH. An internist specializing in the treatment of lung and airway diseases. The pulmonologist diagnoses and manages conditions such as cancer, pneumonia, pleurisy, asthma, occupational and environmental illnesses, bronchitis, sleep disorders, emphysema, and other complex lung disorders. Contact Dr. Brennan to book an appointment today.
Is this Dr. John Brennan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Brennan is affiliated with Exeter Hospital which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Pulmonologist?
Explore Pulmonologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is John Brennan accepting new patients in Exeter, NH?
Yes, Dr. John Brennan is accepting new patients at this time.
Does Dr. John Brennan offer online booking?
Please contact Dr. Brennan's office at (603) 775-0234 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Brennan?
Please contact Dr. Brennan's office at (603) 775-0234 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. John Brennan have?
Dr. John Brennan is certified by the American Board of Internal Medicine.
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