• Patients
  • Business
WellMed
  • Contact us
  • Patient Portal
  • Menu
  • Find a clinic
  • Find a doctor
  • Health services

    Health services

    Providing great health care is our goal.

    • About WellMed
    • Your care team
    • Virtual video visits
    • Clinical program services
    • Specialists for Health
    • Transitional care
    • Services and specialties
    • Extended hours clinics

    Become a WellMed patient

    Our goal is simple, to provide the best care so you can live your best life.

    Request an appointment

  • Patient resources

    Patient resources

    Take a look at what makes WellMed great.

    • Patient portal
    • Patient forms
    • Bill pay
    • WellMed Charitable Foundation
    • Insurance plans accepted
    • Our network
    • Economic Security Assistance

    Become a WellMed patient

    Our goal is simple, to provide the best care so you can live your best life.

    Request an appointment

  • Events & media

    Events

    We bring events to help you connect with your community because your health matters.

    Find events near you

    Media

    • Age healthy now blog
    • Docs in a Pod
    • In the news
    • Our stories

    • Why am I peeing so much? 7 possible reasons you're urinating more than usual

      July 20, 2026

    • Managing diabetes after age 50

      July 15, 2026

    • How to travel with insulin: essential tips for a stress-free trip

      July 13, 2026

Menu
    • Patient Portal
    • Find a clinic
    • Find a doctor near me
    • Health services
      • Providing great health care is our goal.
        • About WellMed
        • Your care team
        • Virtual video visits
        • Clinical program services
        • Specialists for Health
        • Transitional care
        • Services and specialties
        • Extended hours clinics

        • Become a WellMed patient

          Our goal is simple, to provide the best care so you can live your best life.

          Request an appointment
    • Patient resources
      • Take a look at what makes WellMed great.
        • Patient portal
        • Patient forms
        • Bill pay
        • Wellmed Charitable Foundation
        • Insurance plans accepted
        • Our network
        • Economic Security Assistance

        • Become a WellMed patient

          Our goal is simple, to provide the best care so you can live your best life.

          Request an appointment
    • Events & media

        • Events

          We bring events to help you connect with your community because your health matters.

          Find events near you

        • Media

          Age healthy now blog
        • Docs in a Pod
        • In the news
        • Our stories

          • Why am I peeing so much? 7 possible reasons you're urinating more than usual

            July 20, 2026

          • Managing diabetes after age 50

            July 15, 2026

          • How to travel with insulin: essential tips for a stress-free trip

            July 13, 2026

Back to search results
Texas Digestive Disease Consultants PLLC Store Front

Texas Digestive Disease Consultants PLLC

480 US Highway 80 E
Ste 200
Sunnyvale, TX  75182
Driving Directions

View our clinicians
Call 1-972-681-2226 to schedule

Languages spoken

English
French
Spanish
Print Email
Call 1-972-681-2226 to schedule

Languages spoken

English
French
Spanish
Print Email
Print Email

Texas Digestive Disease Consultants PLLC
Call location1-972-681-2226
Get directions 480 US Highway 80 E Ste 200
Sunnyvale,  TX 75182
Fax number1-972-681-7838
Call location1-972-681-2226
Get directions 480 US Highway 80 E Ste 200
Sunnyvale,  TX 75182
Fax number1-972-681-7838

Office Hours

Sunday Closed
Monday 8 a.m. to 5 p.m.
Tuesday 8 a.m. to 5 p.m.
Wednesday 8 a.m. to 5 p.m.
Thursday 8 a.m. to 5 p.m.
Friday 8 a.m. to 5 p.m.
Saturday Closed

Our clinicians

Fayez G. Seif, MD practices Gastroenterology in Rockwall and Sunnyvale
Fayez G. Seif, MD
Gastroenterology
Call 1-972-475-1277 View profile
Charles W. McDaniel, DO practices Gastroenterology in Sunnyvale
Charles W. McDaniel, DO
Gastroenterology
Call 1-972-681-2226 View profile
Katherine E. Schultheiss (Shuster), PA practices Physician Assistant in Mesquite, Rockwall, and Sunnyvale
Katherine E. Schultheiss (Shuster), PA
Physician assistant
Call 1-972-681-2226 View profile
Gabriela Ayala, NP practices Nurse Practitioner in Rockwall and Sunnyvale
Gabriela Ayala, NP
Nurse practitioner
Call 1-972-681-2226 View profile
Krista L. Todd, NP practices Nurse Practitioner in Rockwall and Sunnyvale
Krista L. Todd, NP
Nurse practitioner
Call 1-972-681-2226 View profile

Patients

  • Patient portal
  • Bill pay
  • Request an appointment
  • Find a doctor
  • Find a clinic
  • Services and specialties library
  • Insurances accepted
  • Patient forms

Physicians

  • Provider portal (Opens in new window)
  • Career opportunities (Opens in new window)
  • Prior authorization requirements (Opens PDF in new window)

Brokers

  • Broker events
  • Broker information center (Opens in new window)

WellMed

  • Contact us
  • About us
  • Careers
  • Notices
  • News
  • Site map

Resources

  • Blog
  • Economic Security Assistance
  • Events
  • Medical coverage policies
  • Medicare information page
  • Language Assistance / Non-Discrimination Notice|
  • Privacy|
  • Terms of use|
  • Texting terms of use|
  • Complaints

WellMed is committed to delivering high-quality, value-based care through coordinated, physician-led teams focused on prevention and patient-centered support.

©2026 WellMed Medical Management Inc. All rights reserved.

Facebook (Opens in new window) LinkedIn (Opens in new window) YouTube (Opens in new window) Instagram (Opens in new window)

Data use: We use cookies and similar tools to make your use of this website easy and to keep it working properly. We may share data about you and how you use the site with third parties, such as analytics and marketing partners. Learn more in our Privacy Policy (Opens in new window) and Terms of Use (Opens in new window). By continuing to use the site, you agree to this.