1
1 Rating
Summary
Dr. John Brennan is an experienced physician specializing in internal medicine, family medicine, and emergency medicine. With nearly six decades of medical practice, he brings extensive clinical expertise to patient care. Dr. Brennan earned his medical degree from the University of Wisconsin School of Medicine & Public Health. He communicates with patients in both English and Spanish.
Dr. Brennan practices at Mayo Clinic Health System Sparta and serves patients in La Crescent, Minnesota. He focuses on treating conditions such as acute sinusitis and other sinus-related disorders. His procedural expertise includes facial X-rays and sinus imaging studies to help diagnose and monitor treatment progress.
Dr. Brennan practices at Mayo Clinic Health System Sparta and serves patients in La Crescent, Minnesota. He focuses on treating conditions such as acute sinusitis and other sinus-related disorders. His procedural expertise includes facial X-rays and sinus imaging studies to help diagnose and monitor treatment progress.
Overview based on verified provider data
Quick Facts
- 59 years of experience
- 1 insurance plan accepted
- speaks English, Spanish
- University Of Wisconsin School Of Medicine & Public Health
- 3 specialties
- 5 areas of expertise
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Compare with Similar Doctors
 |  |  |  |
| Dr. John Thaddeus Brennan, MD | Dr. Michelle Xiao Song, MD | Dr. Adewumi Bakare DMSc, PA-C | Dr. Mark Roger Brumm, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Family Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 59 Years of Experience | 6 Years of Experience | 5 Years of Experience | 33 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option |
| Speaks English, Spanish | Speaks English, Mandarin, Spanish | Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) | Speaks English, Spanish |
| La Crescent , MN | Denver , CO | Mesquite , TX | La Crosse , WI |
| Med School: University Of Wisconsin School Of Medicine & Public Health | Med School: UCLA's David Geffen School of Medicine | Med School: University of Lynchburg - DMSc | Med School: University Of Wisconsin School Of Medicine & Public Health |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Thaddeus Brennan
Medical Specialties
Dr. John Thaddeus Brennan has the following 3 specialties
Specialty Expertise
Dr. John Thaddeus Brennan has the following 5 areas of expertise
Certifications, License, & Education
59 Years Experience
Dr. John Thaddeus Brennan holds an inactive medical license in the state of Minnesota.
Medical License
Medical Doctor with an inactive medical license in the state of Minnesota.
Education & Training
Medical School
Graduated from University Of Wisconsin School Of Medicine & Public Health in 1967.
NPI Number
Dr. Brennan's NPI number is 1891776977.
Similar doctors
Frequently Asked Questions
- Is Dr. John Brennan accepting new patients?
- Dr. John Brennan has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. John Brennan accept my insurance?
- You can see the insurance plans that Dr. John Brennan accepts on their Vitals profile.
- Which hospitals is Dr. John Brennan affiliated with?
- Dr. John Brennan is affiliated with Mayo Clinic Health System Sparta.
- Where is Dr. John Brennan's office located?
- Dr. John Brennan's office is located at 524 N Elm St, La Crescent, MN, 55947.
- Does Dr. John Brennan accept virtual/telehealth appointments?
- Dr. John Brennan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.
