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Due to inclement weather, all GSI Offices and Endoscopy Centers will be closed on Monday, 1/26/2026. 

We will be opening at 11am on Tuesday, 1/27/2026. Outpatient procedures and office appointments scheduled before 11am are being rescheduled. Please call our office at 804-285-8206 to schedule or reschedule your appointment as needed.

Texas Digestive Disease Consultants: San Antonio – ALON

Texas Digestive Disease Consultants: San Antonio – ALON

Monday – Thursday
8:00AM – 5:00PM

Friday
8:00AM – 4:00PM

Request An Appointment

Request An Appointment

If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Our office will handle non-emergency requests within 48 hours.

Texas Digestive Disease Consultants: San Antonio – ALON
11503 Northwest Military Highway, Suite 207, San Antonio, TX 78231
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Our Providers

Kevin Dasher, M.D.

Gastroenterologist
 in San Antonio, TX
Meet Dr. Dasher

Ravi Ganeshappa, M.D.

Gastroenterologist
 in San Antonio, TX
Meet Dr. Ganeshappa

Bijo K. John, M.D.

Gastroenterologist
 in Pearsall, TX
Meet Dr. John

Jan Carlos Prazak, M.D.

Gastroenterologist
 in San Antonio, TX
Meet Dr. Prazak

Jessica Khalidi, N.P.

Nurse Practitioner
 in San Antonio, TX
Meet Jessica

Christie Morrison, N.P.

Nurse Practitioner
 in San Antonio, TX
Meet Christie

Request An Appointment

If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Our office will handle non-emergency requests within 48 hours.