Alert: Phone Scam Warning. Learn More

GI Alliance – Sherman, TX

Sherman

Monday – Thursday
8:00AM – 5:00PM

Friday
8:00AM – 2:00PM

Request An Appointment

If you are experiencing a medical emergency, please call 9-1-1.

To schedule an appointment, please call 903-892-9179 or click the “Message Us” button located at the bottom right corner of your screen and a member of our team will contact you within 48 hours.

GI Alliance – Sherman, TX
1615 North US Hwy 75, Ste. A, Sherman, TX 75090
Get Directions
Map of Sherman

Our Providers

John Fletcher, M.D.

Gastroenterologist
in Sherman, 
TX
Meet Dr. FletcherMeet Dr.
Fletcher

Ryan Kahl, D.O.

Gastroenterologist
in Sherman, 
TX
Meet Dr. KahlMeet Dr.
Kahl

Kruti Patel, D.O.

Gastroenterologist
in Sherman, 
TX
Meet Dr. PatelMeet Dr.
Patel

Nathan Smallwood, M.D.

Colorectal Surgeon
in Sherman, 
TX
Meet Dr. SmallwoodMeet
Nathan

Desiree D. Frye, N.P.

Nurse Practitioner
in Sherman, 
TX
Meet DesireeMeet
Desiree

Alert: Phone Scam Warning

We’re seeing an increase in phone scams targeting patients. Callers may pose as Medicare, your doctor’s office, or another healthcare provider to obtain your Medicare number or other personal information.

Please remember:

  • Never share your Medicare number, Social Security number, or banking information with unsolicited callers.
  • Medicare will never call you unexpectedly to request your number or personal details.
  • Be wary of offers for “free” medical equipment or services in exchange for your Medicare information.
  • If a call seems suspicious, hang up and contact the clinic where you receive care directly using the phone number listed on our website for that location.

To report a suspicious call: Call 1-800-MEDICARE (1-800-633-4227) or visit reportfraud.ftc.gov.