About us

Welcome to Sierra
Allergy Asthma and
Sinus Center

Here, your health and well-being are our top priorities. Located in Fresno and Merced, California, we offer compassionate and comprehensive care for patients dealing with allergy and immunology disorders.

Serving the Fresno Community

Our Fresno office is dedicated to serving the local community with expert care and personalized treatment plans. Conveniently located, we address your allergy and immunology needs with the utmost professionalism and compassion.

Our Merced Facility

We also proudly serve the Merced community from our second location. At our Merced office, you receive the same high-quality care and attention that defines our practice, ensuring comprehensive allergy and immunology services for patients throughout the region.

Meet our expert:

Dr. Muhammad Hassan Bashir

Muhammad Hassan Bashir, MD, is a highly skilled allergist and immunologist at Sierra Allergy Asthma and Sinus Center, bringing over ten years of experience in allergy medicine, including experience from Baz Allergy. With training from UCSF-Fresno, the Medical College of Wisconsin, and Stanford University, Dr. Bashir provides personalized and compassionate care for complex allergies, asthma, and immunological conditions. He emphasizes advanced diagnostics, early intervention, and family-centered care, while also engaging in community education through seminars and workshops. He is dedicated to enhancing the health and well-being of patients in the Fresno and Merced communities.

A promise of care

The moment you walk through our doors, you’ll feel the warmth of our committed team. We understand the daily challenges of living with allergies and respiratory issues. That’s why we take the time to listen attentively, ensuring every patient feels heard and understood. Your concerns are our concerns, and your well-being is our top priority.

Expertise and understanding

Led by experienced allergists and equipped with advanced testing and diagnostic tools, we deliver precise diagnoses and effective treatment plans tailored to your unique needs. Whether you’re seeking relief from seasonal allergies, asthma, or sinus problems, we provide the knowledge and support you need to manage your symptoms and regain control of your life.

Walking together

We believe in walking alongside you on your health journey. Beyond medical expertise, we offer a compassionate partnership built on trust and respect. We are dedicated to nurturing enduring relationships with our patients, ensuring you always feel supported and empowered.

Get in touch

Are you prepared to embark on the path to comfort and well-being? Contact Sierra Allergy Asthma and Sinus Center now to book your appointment. We’re here to guide you on the road to a more fulfilling and healthier life ahead.