

Dr. Vijay Mahajan, MD
Dr. Vijay Mahajan, MD is a pulmonologist in Defiance, OH and has over 55 years of experience in the medical field. He graduated from MAHARSHI DAYANAND UNIVERSITY ROHTAK / MAHARAJA AGRASEN INSTITUTE OF MEDICAL RESEARCH AND EDUCATION in 1966. He is affiliated with Mercy Health-St. Vincent Medical Center. He is accepting new patients and telehealth appointments.
Mercy Health - Defiance Pulmonology
1400 E 2nd St Defiance, OH 43512Make an Appointment
Hospital Highlight
Dr. Mahajan is affiliated with Mercy Health-St. Vincent Medical Center Toledo, a highly rated and top awarded hospital for pulmonology.
At a Glance
- Areas of ExpertiseDr. Mahajan specializes in the areas of Internal Medicine & Pulmonary Disease. • See board certifications
- Explains Conditions Well
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital

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Dr. Mahajan's Reviews
Likelihood to recommend Dr. Mahajan
5.0
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How was your experience with Dr. Mahajan?Overall Patient Satisfaction
Likelihood of recommending Dr. Mahajan to family and friends is 5 out of 5
About Me
biography
Dr. Vijay Mahajan, MD is a pulmonologist in Defiance, OH and has over 55 years of experience in the medical field. He graduated from MAHARSHI DAYANAND UNIVERSITY ROHTAK / MAHARAJA AGRASEN INSTITUTE OF MEDICAL RESEARCH AND EDUCATION in 1966. He...read morePulmonary Disease
Internal Medicine
Critical Care Medicine
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Maharshi Dayanand University Rohtak / Maharaja Agrasen Institute Of Medical Research And Education
Medical School, 1966
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkFocus on Asthma
Locations
Mercy Health - Defiance Pulmonology
Mercy Health - Perrysburg Respiratory Specialists
Mercy Health - Respiratory Specialists
Mercy Health - Respiratory Specialists
- Call
- Fax
- Hours
- Mon: 8:00am - 4:30pm
- Tue: 8:00am - 4:30pm
- Wed: 8:00am - 4:30pm
- Thu: 8:00am - 4:30pm
- Fri: 8:00am - 4:30pm
- Directions
Mercy Health - Sylvania Respiratory Specialists
Mercy Health - Tiffin Respiratory Specialists
Affiliated Hospitals
- Recipient of 19
hospital awardsAmerica’s 100 Best Hospitals for Pulmonary Care Award™ (2025, 2024)
Top 5% in the nation for consistently delivering clinical quality
View all awardsAmerica's 250 Best Hospitals Award™ (2025, 2024)
Top 5% in the nation for consistently delivering clinical quality
View all patient feedbackHow patients felt about the care they received at this hospital.
88%Patients said they were given information about recovering at home4% higher than the national average
78%Patients said that nurses always listened to them and explained things well3% higher than the national average
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