Allergy & Asthma, INC.
Hidayat A. Khan, M.D.
Columbia Office: Dundalk Office:
10794 Hickory Ridge Rd. 1576 Merritt Blvd. STE #6
Columbia, MD 21044 Dundalk, MD 21044
410-964-3888 - Phone 410-282-2903 - Phone
410-964-4405 - Fax 410-282-2904 - Fax
Frederick Office:
801 Tollhouse Ave. BLDG "E"
Frederick, MD 21701
301-694-4935 - Phone
301-694-0389 - Fax
Office Hours:
Appointments:
Monday (Frederick Office Only)
Tuesday (Dundalk Office Only)
Wednesday (Columbia Office Only)
Thursday (Dundalk Office Only)
Friday (Frederick Office Only)
Saturday (Columbia Office Only)
Sunday
*Call for an appointment; the office is open 9am to 5pm, Monday through Friday to schedule appointments! We are accepting New Patients at all locations!
12:30pm – 5:30pm
2:00pm – 6:30pm
12:00pm – 6:30pm
3:30pm - 6:30pm
12:30pm – 5:30pm, Last Friday of the month 3:30pm - 5:30pm
9:00am - 1:30pm
CLOSED
Our Services:
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We welcome Pediatric, Adolescent and Adult patients
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Allergy Testing
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​Food Testing
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Aero Testing
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Asthma Care Services
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Allergy Immunology Services
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Office Visits for all of your allergy related needs
New Patient?
Please download our forms & bring them to your appointment!
Please print your forms on seperate pages, Thank You!