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Summary
Dr. John Brennan has practiced internal medicine, family medicine, and emergency medicine for 59 years and is affiliated with Mayo Clinic Health System Sparta. He treats acute sinusitis and sinusitis, and performs facial X-ray and sinus X-ray procedures. Dr. Brennan earned his medical degree from the University of Wisconsin School of Medicine & Public Health and sees patients in La Crescent, Minnesota. He speaks English and Spanish.
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. Adewumi Bakare DMSc, PA-C | Dr. Michelle Xiao Song, MD | Dr. James W Labuzzetta, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Emergency Medicine |
| Accepts New Patients | Accepts New Patients | ||
| 59 Years of Experience | 6 Years of Experience | 32 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option |
| Speaks English, Spanish | Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) | Speaks English, Mandarin, Spanish | Speaks English, Spanish |
| La Crescent , MN | Mesquite , TX | Denver , CO | La Crosse , WI |
| Med School: University Of Wisconsin School Of Medicine & Public Health | Med School: University of Lynchburg - DMSc | Med School: UCLA's David Geffen School of Medicine | Med School: UNIVERSITY AT BUFFALO STATE UNIVERSITY OF NEW YORK SCHOOL OF MEDICINE & BIOMEDICAL SCIENCES |
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.
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Frequently Asked Questions
- Which hospitals is Dr. John Brennan affiliated with?
- Dr. John Brennan is affiliated with Mayo Clinic Health System Sparta.
- How can I make an appointment with Dr. John Brennan?
- You can find contact information for Dr. John Brennan here on Vitals.
- Does Dr. John Brennan accept my insurance?
- You can see the insurance plans that Dr. John Brennan accepts on their Vitals profile.
- Where is Dr. John Brennan's office located?
- Dr. John Brennan's office is located at 524 N Elm St, La Crescent, MN, 55947.
- What languages does Dr. John Brennan speak?
- Dr. John Brennan speaks English and Spanish.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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