Dr. Mark Frederic Grefenson MD is a male Allergist & Immunologist, has 45 years of experience and practices in Otolaryngology, Plastic Surgery within the Head & Neck, and Allergy & Immunology.
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Specialties & Research
Dr. Mark Grefenson, MD is board certified in Otolaryngology.
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Education & Awards
Dr. Grefenson graduated from Leopold Franzen Universitaet, Innsbruck.More Education & Awards