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Dr. Mark Weissig, MD

Fullerton, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Weissig, Pulmonologist in Fullerton, CA?

    Dr. Mark Weissig, MD is a Pulmonologist, who primarily practices in Fullerton, CA with 2 additional practice locations. He is board certified. Dr. Weissig completed his residency at Ucla Med Ctr, Pulmonary Diseases; Duke Univ Med Ctr, Internal Medicine. Dr. Weissig is fluent in English and Spanish, and is currently seeing new patients. Dr. Weissig’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Weissig’s office at (714) 626-8605.

    Where did Dr. Weissig go to medical school and complete their residency?

    • Residency: Ucla Med Ctr, Pulmonary Diseases; Duke Univ Med Ctr, Internal Medicine

    Is Dr. Weissig board certified as a Pulmonologist?

    Yes, Dr. Mark Weissig, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Weissig speak?

    Dr. Weissig and their clinical team can communicate with patients in the following languages:

    • English

    • Spanish

    What conditions does a Pulmonologist like Dr. Weissig typically treat?

    As a Pulmonologist, Dr. Weissig diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Weissig. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology here.

    Also known as:

    • Obstructive Sleep Apnea
    • Sleep Apnea
    • Obstructive sleep apnea
    • OSA
    • Blocked airway during sleep
    • Snoring and gasping during sleep

    ICD-10 Codes:

    • G4733: Obstructive sleep apnea (adult) (pediatric)

    Also known as:

    • Asthma
    • Reactive Airway Disease
    • Bronchial Asthma
    • Allergic Asthma

    ICD-10 Codes:

    • J45909: Unspecified asthma, uncomplicated

    Also known as:

    • Interstitial Lung Disease
    • ILD
    • Diffuse Parenchymal Lung Disease
    • Chronic Lung Disease

    ICD-10 Codes:

    • J849: Interstitial pulmonary disease, unspecified

    Also known as:

    • COPD
    • Chronic Obstructive Pulmonary Disease
    • Chronic Lung Disease
    • Emphysema and Chronic Bronchitis

    ICD-10 Codes:

    • J449: Chronic obstructive pulmonary disease, unspecified

    Also known as:

    • Other Abnormal Findings on Lung Scan
    • Unusual Lung Scan Results
    • Atypical Lung Imaging
    • Nonspecific Lung Abnormality

    ICD-10 Codes:

    • R918: Other nonspecific abnormal finding of lung field

    Also known as:

    • Other Lung Disease
    • Lung Disease
    • Various lung conditions
    • Unspecified lung disorder
    • Miscellaneous lung problems

    ICD-10 Codes:

    • J984: Other disorders of lung

    Also known as:

    • Shortness of Breath
    • Breathing Problems
    • Difficulty breathing
    • Breathlessness
    • Dyspnea

    ICD-10 Codes:

    • R0602: Shortness of breath

    What procedures does a Pulmonologist like Dr. Weissig typically perform?

    Does Dr. Weissig accept my insurance?

    Dr. Weissig accepts most major insurance plans. Important: Please call our office at (714) 626-8605 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Weissig accept in Fullerton, CA?

    Dr. Weissig in Fullerton, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Blue Cross Blue Shield of Michigan

    • Centene Corporation

    • City of Providence (RI)

    • CVS Health (formerly Aetna)

    • Medicare

    • St. Joseph Health System (CA)

    • State of California

    • UnitedHealth Group

    • Unknown

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    Where is Dr. Weissig's office located?

    Dr. Mark Weissig's Primary Practice

    2141 N Harbor Blvd Ste 25000

    Fullerton, CA 92835

    (714) 626-8605

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    Dr. Mark Weissig's Practice 2

    100 E Valencia Mesa Dr Ste 105

    Fullerton, CA 92835

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    Dr. Mark Weissig's Practice 3

    253 S Diamond Bar Blvd

    Diamond Bar, CA 91765

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    What is Dr. Weissig's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Weissig's National Provider Identifier (NPI) number is 1649266032.

    What common questions do patients ask about Dr. Weissig?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Weissig

    What is Dr. Mark Weissig's specialty?

    Dr. Weissig is a Pulmonologist near Fullerton, CA.

    What does a Pulmonologist do?

    An internist specializing in the treatment of lung and airway diseases. The pulmonologist diagnoses and manages conditions such as cancer, pneumonia, pleurisy, asthma, occupational and environmental illnesses, bronchitis, sleep disorders, emphysema, and other complex lung disorders.

    Is this Dr. Mark Weissig affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Weissig is affiliated with Providence St. Jude Medical Center, Ronald Reagan Ucla Medical Center, Hoag Hospital Newport Beach, Providence St. Jude Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    When to see a Pulmonologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Pulmonologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Mark Weissig accepting new patients in Fullerton, CA?

    Yes, Dr. Mark Weissig is accepting new patients at this time.

    Does Dr. Mark Weissig offer online booking?

    Please contact Dr. Weissig's office at (714) 626-8605 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Mark Weissig?

    Please contact Dr. Weissig's office at (714) 626-8605 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Mark Weissig have?

    Dr. Mark Weissig is certified by the American Board of Internal Medicine.

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