At Sierra Allergy Asthma and Sinus Center, your health and comfort come first. Conveniently located in Fresno and Merced, California, our clinics provide comprehensive care for allergies, asthma, and immune disorders. Whether you’re searching for an allergist near me, an immunologist near Atwater, or an asthma and allergy center trusted by Central Valley families, Sierra Allergy is here to help you breathe easier.
We are recognized as a top allergy clinic near Fresno and Merced, offering advanced testing and individualized treatments. Patients often discover us when searching for Sierra Allergy Asthma & Sinus Center – Fresno North, Sierra Allergy Asthma & Sinus Center – Merced, or even High Sierra Allergy and Medical—all referring to our same compassionate, expert team.
Our Fresno allergy clinic provides world-class treatment for allergic rhinitis, asthma, eczema, and sinus conditions. If you’re seeking an allergist in Fresno, Fresno pediatric allergist, or allergy doctor Fresno CA, our board-certified specialists are ready to help. We also welcome patients from nearby areas searching for allergy testing near me or Fresno sinuses relief.
Each treatment plan at our Fresno office is designed around your unique needs—combining evidence-based medicine with genuine compassion. Families rely on us as their trusted allergy and immunology specialists across the Central Valley.
At our Sierra Allergy Asthma & Sinus Center – Merced, we bring the same standard of excellence to families seeking reliable care close to home. Whether you need eczema treatment in Merced, an allergist Merced, or comprehensive immunology near Atwater, our Merced team ensures you receive personalized evaluation and treatment.
Many of our patients previously visited Baz Allergy Merced or Baz Allergy Merced CA—and now choose Sierra Allergy for our modern facilities, advanced testing, and attentive follow-ups. We’re honored to continue providing the region’s leading allergy center near me for patients across Los Banos, Atwater, and beyond.
Muhammad Hassan Bashir, MD, board-certified in internal medicine and allergy & immunology, is the lead physician at our Fresno and Merced centers. With over 15 years of experience, including his work at Baz Allergy Fresno, Dr. Bashir is known throughout the region as a trusted asthma and allergy specialist. Patients often search for him online under names like Dr. Hassan Bashir, Dr. Hassan, or Hassan Bashir MD.
Dr. Bashir completed his medical training at UCSF-Fresno and pursued advanced fellowships at the Medical College of Wisconsin and Stanford University. His clinical expertise includes everything from seasonal allergies and eczema to food allergies and sinus care, making him one of the most comprehensive allergists in Fresno and Merced.
From pediatric allergist Fresno services to adult asthma care in Merced, we offer compassionate, long-term solutions. Patients often find us when searching for:
Our practice combines modern diagnostics with patient-centered care—ensuring accurate results and effective treatments for everything from eczema to sinus congestion.
At Sierra Allergy Asthma and Sinus Center, we go beyond treatment—we restore confidence and quality of life. Whether you visit our Fresno allergist or Merced allergy specialist, you’ll experience care built on trust and medical excellence.
We specialize in tailored solutions for:
Families from Ceres, Atwater, and Los Banos depend on our allergy asthma and sinus center for professional, compassionate care.
We view every patient relationship as a partnership built on respect and empathy. Our mission is to serve as your lifelong health partner—helping you understand your symptoms, prevent flare-ups, and maintain long-term wellness.
As a leading Fresno allergist and Merced immunologist near me, we proudly provide comprehensive services that improve your daily comfort and respiratory health.
Are you ready to feel better? Reach out to Sierra Allergy Asthma and Sinus Center today to schedule your visit with a board-certified allergist in Fresno or Merced. Whether you’re looking for an allergy clinic near me, an asthma and allergy center, or simply expert advice from specialists who care, we’re here to guide you every step of the way.
