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Dr. Jonathon Posthumus, MD

Allergist & Immunologist

Fredericksburg, VA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Posthumus, Allergist & Immunologist in Fredericksburg, VA?

    Dr. Jonathon Posthumus, MD is an Allergist & Immunologist, who primarily practices in Fredericksburg, VA with 1 additional practice location. Dr. Posthumus graduated from Rutgers and completed his residency at University of Virginia Program. Dr. Posthumus is fluent in English, and is currently seeing new patients. Dr. Posthumus’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Posthumus’s office at (540) 371-5660.

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

    • Residency: University of Virginia Program

    • Medical School: UMDNJ-ROBT W JOHNSON MED SCH | Rutgers

    What languages does Dr. Posthumus speak?

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

    • English

    What conditions does an Allergist & Immunologist like Dr. Posthumus typically treat?

    As an Allergist & Immunologist, Dr. Posthumus 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. Posthumus. 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.

    Also known as:

    • Pet Allergy
    • Allergic Rhinitis
    • Allergy
    • Animal dander allergy
    • Cat allergy
    • Dog allergy
    • Allergic rhinitis from pets
    • Nasal allergy
    • Chronic allergy symptoms
    • Allergic reactions

    ICD-10 Codes:

    • J3081: Allergic rhinitis due to animal (cat) (dog) hair and dander
    • J3089: Other allergic rhinitis

    Also known as:

    • Hay Fever
    • Pollen allergy
    • Seasonal allergies
    • Allergic rhinitis

    ICD-10 Codes:

    • J301: Allergic rhinitis due to pollen

    Also known as:

    • Mild Persistent Asthma
    • Severe Persistent Asthma
    • Moderate Persistent Asthma
    • Asthma
    • Ongoing Mild Asthma
    • Regular Mild Asthma
    • Chronic Mild Asthma
    • Chronic Severe Asthma
    • Difficult-to-Treat Asthma
    • Severe Asthma
    • Ongoing Moderate Asthma
    • Regular Moderate Asthma
    • Chronic Moderate Asthma

    ICD-10 Codes:

    • J4530: Mild persistent asthma, uncomplicated
    • J4550: Severe persistent asthma, uncomplicated
    • J4540: Moderate persistent asthma, uncomplicated

    Also known as:

    • Chronic Hives
    • Hives
    • Hives of unknown cause
    • Spontaneous urticaria
    • Persistent welts

    ICD-10 Codes:

    • L501: Idiopathic urticaria

    What procedures does an Allergist & Immunologist like Dr. Posthumus typically perform?

    As an Allergist & Immunologist, procedures performed by Dr. Jonathon Posthumus may include:

    Please contact Dr. Posthumus' office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. Posthumus accept my insurance?

    Dr. Posthumus accepts most major insurance plans. Important: Please call our office at (540) 371-5660 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Posthumus accept in Fredericksburg, VA?

    Dr. Posthumus in Fredericksburg, VA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • CareFirst BlueCross BlueShield

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Humana

    • Medicare

    • Sentara Health System / Optima Health

    • UMR Administered Payer

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Posthumus' office located?

    Dr. Jonathon Posthumus' Primary Practice

    511 Park Hill Dr

    Fredericksburg, VA 22401

    (540) 371-5660

    Get Directions

    Suite 101

    12 Pga Dr Ste 101

    Stafford, VA 22554

    Get Directions

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

    Dr. Posthumus's National Provider Identifier (NPI) number is 1255536553.

    What common questions do patients ask about Dr. Posthumus?

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

    What is Dr. Jonathon Posthumus's specialty?

    Dr. Posthumus is an Allergist & Immunologist near Fredericksburg, VA.

    What does an Allergist & Immunologist do?

    An allergist-immunologist is well-versed in the assessment, physical examination, laboratory diagnosis, and treatment of immune system disorders. These conditions include, but are not limited to, eczema, asthma, anaphylaxis, rhinitis, and adverse reactions to food, medication, and insect stings. Furthermore, they manage immune deficiency diseases, whether acquired or congenital, issues with host defense, and challenges associated with autoimmune diseases, organ transplantation, or immune system malignancies.

    Is Dr. Jonathon Posthumus affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Posthumus is affiliated with Mary Washington Hospital, Spotsylvania Regional Medical Center, Uva University Hospital, Uva Health Culpeper Medical Center, Sentara Northern Virginia 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 an Allergist & Immunologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Allergist & Immunologist. 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 Dr. Jonathon Posthumus accepting new patients in Fredericksburg, VA?

    Yes, Dr. Jonathon Posthumus is accepting new patients at this time.

    Does Dr. Jonathon Posthumus offer online booking?

    Please contact Dr. Posthumus' office at (540) 371-5660 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Jonathon Posthumus?

    Please contact Dr. Posthumus' office at (540) 371-5660 to schedule an appointment.

    Where is Dr. Posthumus' office located?

    Dr. Posthumus' offices are located in Fredericksburg, VA and Stafford, VA.