The 20 Best Sinusitis Doctors Near Me in Ontario, CA

Find the Top Sinusitis Experts and Specialists

The 20 Best Sinusitis Doctors near Ontario, CA

Last Updated: 02/22/2026

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MediFind found 281 doctor with experience in Sinusitis near Ontario, CA. Of these, 254 are Experienced, 24 are Advanced and 3 are Distinguished.

Location
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281 providers found
    Distinguished in Sinusitis
    Otolaryngology
    Distinguished in Sinusitis
    Otolaryngology

    Inland Ear Nose And Throat A Medical Group Inc

    1030 E Foothill Blvd, Suite 101, 
    Upland, CA 
     (3.0 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Natee Poopat is an Otolaryngologist in Upland, California. Dr. Poopat is rated as a Distinguished provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Sinusitis, Empyema, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Infant Hearing Loss, and Myringotomy.

    Advanced in Sinusitis
    Family Medicine
    Advanced in Sinusitis
    Family Medicine

    Morris Kokhab M.D. A Medical Corporation

    974 W Foothill Blvd, 
    Upland, CA 
     (3.1 miles away)
    Languages Spoken:
    English

    Louis Dibernardo is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Dibernardo is rated as an Advanced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Tracheitis, Lymphangitis, Otitis, and Cellulitis.

    Advanced in Sinusitis
    Family Medicine
    Advanced in Sinusitis
    Family Medicine

    Chino Hills Family Medical Group

    15361 Central Avenue, 
    Chino, CA 
     (4.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Cynthia Moreno is a primary care provider, practicing in Family Medicine in Chino, California. Dr. Moreno is rated as an Advanced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Empyema, Sinusitis, Cellulitis, and Vertigo.

    Learn about our expert tiers
    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Unicare Community Health Center Inc.

    1151 E Walnut St, 
    Ontario, CA 
     (2.8 miles away)
    Languages Spoken:
    English

    Naila Mubashar is a primary care provider, practicing in Family Medicine in Ontario, California. Dr. Mubashar is rated as an Experienced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Obesity in Children, Obesity, Food Allergy, and Fish-Eye Disease.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    R S Bir MD Inc

    11692 Central Ave, 
    Chino, CA 
     (2.9 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English

    Michelle Oneil is a primary care provider, practicing in Family Medicine in Chino, California. Dr. Oneil has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Vitamin D Deficiency, High Cholesterol, Familial Combined Hyperlipidemia, and Xanthoma.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Optum - Upland Primary Care

    299 W Foothill Blvd, 
    Upland, CA 
     (3.0 miles away)
    Experience:
    20+ years
    Languages Spoken:
    English
    Accepting New Patients

    Anthony Truong is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Truong has been practicing medicine for over 20 years and is rated as an Experienced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Vertigo, Type 2 Diabetes (T2D), Necrosis, and Peptic Ulcer. Dr. Truong is currently accepting new patients.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Office

    7777 Milliken Ave Ste 350, 
    Rancho Cucamonga, CA 
     (4.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Sandra Force is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Force is rated as an Experienced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Homocystinuria, Methylmalonic Acidemia with Homocystinuria, Inborn Amino Acid Metabolism Disorder, and Platelet Storage Pool Deficiency.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Tarek Ezzeddine MD Inc.

    10841 White Oak Ave Ste 103, 
    Rancho Cucamonga, CA 
     (4.7 miles away)
    Languages Spoken:
    English

    Tarek Ezzeddine is a primary care provider, practicing in Family Medicine in Rancho Cucamonga, California. Dr. Ezzeddine is rated as an Experienced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Acute Cystitis, Tracheitis, Cellulitis, and Urinary Tract Infection in Children.

    Advanced in Sinusitis
    Family Medicine
    Advanced in Sinusitis
    Family Medicine

    Ravinder Singh, Md, Inc.

    525 N 13th Ave, 
    Upland, CA 
     (2.6 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English
    Offers Telehealth

    Ravinder Singh is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Singh has been practicing medicine for over 27 years and is rated as an Advanced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Milk-Alkali Syndrome, Hypercalcemia, Type 2 Diabetes (T2D), Hormone Replacement Therapy (HRT), and Parathyroidectomy.

    Advanced in Sinusitis
    Otolaryngology
    Advanced in Sinusitis
    Otolaryngology

    Inland Ear Nose And Throat A Medical Group Inc

    1030 E Foothill Blvd, Suite 101, 
    Upland, CA 
     (3.0 miles away)
    Languages Spoken:
    English

    Clara Olcott is an Otolaryngologist in Upland, California. Dr. Olcott is rated as an Advanced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Familial Deafness, Nonallergic Rhinopathy, Palatal Myoclonus, and Ozena.

    Advanced in Sinusitis
    Otolaryngology
    Advanced in Sinusitis
    Otolaryngology

    Ontario Medical Center

    2295 S Vineyard Avenue, 
    Ontario, CA 
     (3.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Samaneh Ashktorab is an Otolaryngologist in Ontario, California. Dr. Ashktorab is rated as an Advanced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Sinusitis, Cheilitis Glandularis, Tonsil Stones, and Ozena. Dr. Ashktorab is currently accepting new patients.

    Advanced in Sinusitis
    Family Medicine
    Advanced in Sinusitis
    Family Medicine

    Office

    1601 Monte Vista Ave Ste 190, 
    Claremont, CA 
     (4.4 miles away)
    Languages Spoken:
    English

    Monique Castro is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Castro is rated as an Advanced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Acute Cystitis, Otitis, Asthma in Children, and Eosinophilic Asthma.

    Advanced in Sinusitis
    Family Medicine
    Advanced in Sinusitis
    Family Medicine

    Office

    1601 Monte Vista Ave Ste 190, 
    Claremont, CA 
     (4.4 miles away)
    Languages Spoken:
    English

    Dana Homer is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Homer is rated as an Advanced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Cellulitis, Parinaud Oculoglandular Syndrome, Otitis, and Peptic Ulcer.

    Advanced in Sinusitis
    Family Medicine
    Advanced in Sinusitis
    Family Medicine

    Office

    1601 Monte Vista Ave Ste 190, 
    Claremont, CA 
     (4.4 miles away)
    Languages Spoken:
    English

    Irene Sung is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Sung is rated as an Advanced provider by MediFind in the treatment of Sinusitis. Her top areas of expertise are Parinaud Oculoglandular Syndrome, Cellulitis, Otitis, and Peptic Ulcer.

    Advanced in Sinusitis
    Family Medicine
    Advanced in Sinusitis
    Family Medicine

    Premier Family Medicine Associates, Inc

    1601 Monte Vista Ave, Suite 190, 
    Claremont, CA 
     (4.4 miles away)
    Languages Spoken:
    English

    Saman Aboudi is a primary care provider, practicing in Family Medicine in Claremont, California. Dr. Aboudi is rated as an Advanced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Tracheitis, Cellulitis, Lymphangitis, and Sinusitis.

    Advanced in Sinusitis
    Allergy and Immunology
    Advanced in Sinusitis
    Allergy and Immunology

    Allergy And Asthma Specialty Center

    9045 Haven Ave, Ste 101, 
    Rancho Cucamonga, CA 
     (4.6 miles away)
    Languages Spoken:
    English

    Joshua Gibbs is an Allergy and Immunologist in Rancho Cucamonga, California. Dr. Gibbs is rated as an Advanced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Allergic Conjunctivitis, Conjunctivitis (Pink Eye), Grass Allergy, and Allergic Rhinitis.

    Distinguished in Sinusitis
    Otolaryngology
    Distinguished in Sinusitis
    Otolaryngology

    Sinu-Clear Inc

    1550 N Park Ave, 
    Pomona, CA 
     (6.1 miles away)
    Languages Spoken:
    English

    Harvey Paley is an Otolaryngologist in Pomona, California. Dr. Paley is rated as a Distinguished provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Familial Deafness, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP), Empyema, and Sinusitis.

    Experienced in Sinusitis
    General Practice
    Experienced in Sinusitis
    General Practice

    California Medical Clinic Inc.

    402 E Holt Blvd, 
    Ontario, CA 
     (0.1 miles away)
    Languages Spoken:
    English

    David Lozano is a primary care provider, practicing in General Practice in Ontario, California. Dr. Lozano is rated as an Experienced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Osteomyelitis in Children, Type 2 Diabetes (T2D), High Cholesterol, and Cirrhosis.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    Unicare Community Health Center Inc.

    437 N Euclid Ave, 
    Ontario, CA 
     (0.3 miles away)
    Languages Spoken:
    English

    William Paley is a primary care provider, practicing in Family Medicine in Ontario, California. Dr. Paley is rated as an Experienced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Obesity in Children, Obesity, Food Allergy, and Fish-Eye Disease.

    Experienced in Sinusitis
    Family Medicine
    Experienced in Sinusitis
    Family Medicine

    S. M. Hammad Rizvi, M.D., Inc.

    901 San Bernardino Rd, 
    Upland, CA 
     (2.5 miles away)
    Experience:
    25+ years
    Languages Spoken:
    English

    Syed Rizvi is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Rizvi has been practicing medicine for over 25 years and is rated as an Experienced provider by MediFind in the treatment of Sinusitis. His top areas of expertise are Hypertensive Heart Disease, Multisystem Inflammatory Syndrome in Children (MIS-C), COVID-19, Gastrostomy, and Endoscopy.

    Showing 1-20 of 281

    Last Updated: 02/22/2026

    What is the definition of Sinusitis?

    Sinusitis is present when the tissue lining the sinuses become swollen or inflamed. It occurs as the result of an inflammatory reaction or an infection from a virus, bacteria, or fungus.

    When should I see a Sinusitis doctor near Ontario, CA?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Sinusitis doctor near Ontario, CA?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Sinusitis doctors near Ontario, CA?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Sinusitis doctors near Ontario, CA?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Sinusitis doctor near Ontario, CA?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Sinusitis doctor search results page. 

    Why is it important to get a second opinion from a different Sinusitis doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Sinusitis doctor near Ontario, CA?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Sinusitis doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Sinusitis doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Sinusitis doctors near Ontario, CA?

    Look for the filter feature on the left side of the Sinusitis doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Sinusitis doctor that offers video calls?

    Look for the filter feature on the left-side of the Sinusitis doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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