Our Clinic

At Sierra Allergy Asthma and Sinus Center, our top priority is your health and well-being. With locations in Fresno and Merced, California, our team is dedicated to providing compassionate and comprehensive care for patients with allergy and immunology disorders.
From the moment you walk through our doors, you’ll be greeted with warmth and respect by our friendly staff. We understand that dealing with allergies and respiratory issues can be challenging, which is why we take the time to listen to your concerns and develop personalized treatment plans tailored to your unique needs.
Our experienced allergists use state-of-the-art testing and diagnostic tools to accurately identify your triggers and provide effective solutions to manage your symptoms.
Whether you’re seeking relief from seasonal allergies, asthma, or sinus problems, you can trust Sierra Allergy Asthma and Sinus Center to provide the highest level of care.

Today to schedule a consultation and take the first step towards a healthier, happier you.

Insurances Accepted

At Sierra Allergy Asthma and Sinus Center, our commitment to patient care extends beyond insurance limitations.
We believe that everyone deserves access to quality healthcare, regardless of their insurance coverage. That’s why we proudly serve all patients and strive to meet their medical needs with compassion and expertise. By providing comprehensive care to everyone in our community, we aim to foster a healthier and stronger community overall. Whether you have private insurance, Medicare, Medicaid, or no insurance at all, you are welcome at Sierra Allergy Asthma and Sinus Center.
Our goal is to help our community grow in a healthy way by ensuring that every individual receives the care they need to live their best life.

Today to schedule a consultation & experience the difference at Sierra Allergy Asthma and Sinus Center.

Meet the Doctor

Muhammad Hassan Bashir, MD is a distinguished allergist and immunologist at Sierra Allergy Asthma and Sinus Center, renowned for his unwavering commitment to patient care and medical excellence.

With over 10 years of experience, Dr. Bashir has been serving the Central Valley with his expertise in allergy and immunology diseases.

His lifelong passion for serving humanity led him to establish Sierra Allergy Asthma & Sinus Center, dedicated to delivering comprehensive solutions for allergy, asthma, and sinus conditions.

Dr. Bashir obtained his fellowship training in allergy and immunology at Stanford University Medical Center. Patients commend his compassionate approach, attentive listening, and personalized treatment plans that cater to their individual needs.

Dr. Bashir is dedicated to serving the Fresno and Merced communities, striving to enhance the health and well-being of every patient under his care.