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Dr. Dennis Hallahan, MD

Radiation Oncologist

Saint Louis, MO

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Hallahan, Radiation Oncologist in Saint Louis, MO?

    Dr. Dennis Hallahan, MD is a Radiation Oncologist, who primarily practices in Saint Louis, MO with 2 additional practice locations. He is board certified. Dr. Hallahan graduated from Rush Medical College of Rush University Medical Center and completed his residency at Univ Of Chicago Hosps, Radiation Oncology; Univ Of Chicago Hosps, Internal Medicine. Dr. Hallahan is fluent in English, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Hallahan’s office at (314) 747-7236.

    What are Areas of Expertise for Dr. Hallahan?

    Dr. Dennis Hallahan, MD is a highly-rated, board-certified Radiation Oncologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Hallahan empowers patients to confidently navigate their health journey, specializing in Head & Neck Cancer, Sarcoma, and comprehensive wellness support. Serving the Saint Louis, MO community, Dr. Hallahan is dedicated to enhancing lives through expert, patient-centered care.

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

    • Residency: Univ Of Chicago Hosps, Radiation Oncology; Univ Of Chicago Hosps, Internal Medicine | University Of Chicago | University of Chicago Program

    • Medical School: Rush Med Coll of Rush University, Chicago Il | Rush Medical College of Rush University Medical Center

    Is Dr. Hallahan board certified as a Radiation Oncologist?

    Yes, Dr. Dennis Hallahan, MD is board certified by the American Board of Radiology

    What languages does Dr. Hallahan speak?

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

    • English

    What procedures does a Radiation Oncologist like Dr. Hallahan typically perform?

    As a Radiation Oncologist, procedures performed by Dr. Dennis Hallahan may include:

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

    Does Dr. Hallahan accept my insurance?

    Please contact Dr. Hallahan's office to confirm accepted insurance plans.

    Where is Dr. Hallahan's office located?

    Dept Radiation Oncology Ll

    4921 Parkview Pl

    Saint Louis, MO 63110

    (314) 747-7236

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    Dr. Dennis Hallahan's Practice 2

    5225 Mid America Plz Ste 100

    Saint Louis, MO 63129

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    Dr. Dennis Hallahan's Practice 3

    6 Memorial Dr Bldg C

    Alton, IL 62002

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

    Dr. Hallahan's National Provider Identifier (NPI) number is 1699867010.

    What common questions do patients ask about Dr. Hallahan?

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

    What is Dr. Dennis Hallahan's specialty?

    Dr. Hallahan is a Radiation Oncologist near Saint Louis, MO.

    What does a Radiation Oncologist do?

    A radiological oncologist specializes in the therapeutic applications of radiant energy and its modifiers. They focus on the study and management of diseases, particularly malignant tumors.

    Is Dr. Dennis Hallahan affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Hallahan is affiliated with Vanderbilt University Medical Center which is a Castle Connolly Top Hospital. 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 Radiation Oncologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Radiation Oncologist. 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. Dennis Hallahan accepting new patients in Saint Louis, MO?

    Yes, Dr. Dennis Hallahan is accepting new patients at this time.

    Does Dr. Dennis Hallahan offer online booking?

    Please contact Dr. Hallahan's office at (314) 747-7236 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Dennis Hallahan?

    Please contact Dr. Hallahan's office at (314) 747-7236 to schedule an appointment.

    Where is Dr. Hallahan's office located?

    Dr. Hallahan's offices are located in Saint Louis, MO and Alton, IL.

    Which board certifications does Dr. Dennis Hallahan have?

    Dr. Dennis Hallahan is certified by the American Board of Radiology.