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Dr. John Brennan, MD, Exeter

Dr. John Brennan, MD

Pulmonary Medicine • Exeter, NH

About

Call clinicVisit website

Clinic Type

Pulmonary Medicine

Address

3 Alumni Drive, Exeter, NH 03833

Phone

+1 603-775-0234

Email

bd@doximity.com

Opening Hours

Not published — contact the clinic to confirm hours.

Website

https://www.doximity.com/cv/john-brennan-md-1ebc6406

Services Offered

  • Pulmonology
  • Critical Care Medicine
  • Pleural Disease

Team

  • John P Brennan, MD — MD, Pulmonology and Critical Care Medicine Specialist

Insurance & Payment

—

Languages Spoken

  • English

FAQs

What is the street address?

3 Alumni Drive, Exeter, NH 03833

What is the contact phone?

+1 603-775-0234

Awards & Accreditations

  • CMS Meaningful Use Stage 2 Certification NextGen Ambulatory EHR, NextGen Healthcare, 2011, 2013-2014, 2016-2017
  • CMS Meaningful Use Stage 1 Certification NextGen Ambulatory EHR, NextGen Healthcare, 2011, 2013-2014, 2016-2017

Social Media

TiktokTwitterYoutubeLinkedinInstagram

Photos

Dr. John Brennan, MD — photo 1 of 8Dr. John Brennan, MD — photo 2 of 8Dr. John Brennan, MD — photo 3 of 8Dr. John Brennan, MD — photo 4 of 8Dr. John Brennan, MD — photo 5 of 8Dr. John Brennan, MD — photo 6 of 8Dr. John Brennan, MD — photo 7 of 8Dr. John Brennan, MD — photo 8 of 8

What Patients Say

Overall sentiment across review platforms: mixed

  • WebMD Care: 5 out of 5 (2)

Patients praise

  • Some patients report positive experiences and attentive care
  • Appreciation for thoroughness in diagnostic efforts

Common complaints

  • Lack of communication and follow-up on test results
  • Poor handling of appointment scheduling/cancellations
  • Perceived lack of attentiveness during appointments

"No communication, zero follow up. I saw Dr. John Brennan and was transitioning to a new medication. Had tests run - never got the results despite calling to request them. Had an adverse reaction to the new medication and had to go to the ER, made Dr. Brennan aware and they never followed up with me. Incredibly poor service and care."

— LocalityBiz (User Review)

"I went to see Dr. Brennan with a peculiar case of persistent fevers which didn't turn out to be related to lungs. However, he went above and beyond trying ..."

— Vitals (User Review)

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

In the News

Information sourced from the clinic's website as of . Own this clinic? Claim or correct this listing.

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