4.7
62 Ratings with 42 written Reviews
Summary
Dr. Mark Wallis is a board-certified dermatologist and dermatologic surgeon with 38 years of experience treating patients with skin conditions and performing specialized surgical procedures. He earned his medical degree from the University of Texas Health Science Center at San Antonio Joe R. and Teresa Lozano Long School of Medicine. Dr. Wallis speaks both English and Spanish, helping him serve a diverse patient population.
Dr. Wallis is affiliated with Longview Regional Medical Center and practices at locations in Marshall and Longview, Texas. He specializes in treating serious skin conditions including melanoma and basal cell skin cancer. His surgical expertise includes performing kidney transplant biopsies and conducting detailed pathology tests to ensure accurate diagnoses. Patients consistently rate Dr. Wallis highly for his care, giving him an average rating of 4.7 out of 5 stars.
Dr. Wallis is affiliated with Longview Regional Medical Center and practices at locations in Marshall and Longview, Texas. He specializes in treating serious skin conditions including melanoma and basal cell skin cancer. His surgical expertise includes performing kidney transplant biopsies and conducting detailed pathology tests to ensure accurate diagnoses. Patients consistently rate Dr. Wallis highly for his care, giving him an average rating of 4.7 out of 5 stars.
AI-generated from data on this provider profile.
Quick Facts
- accepting new patients
- 38 years of experience
- speaks English, Spanish
- Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med
- 42 written reviews
- 2 specialties
- 12 areas of expertise
- 2 board certifications
- 1 hospital affiliation
- 3 office locations
- Male
Office Locations
Dr. Mark S Wallis has 3 locationsWallis Dermatology Associates
1900 S Washington Ave Ste EMarshall, TX 75670 Tel: (903) 503-7330
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 12:00 pm
SatClosed
SunClosed
Wallis Dermatology Associates
3535 4th St Ste 400Longview, TX 75605Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 12:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. Mark S Wallis, MD | Dr. Rashid Rashid, MD, PhD | Trisha Khanna, MD, FAAD | Dr. Ryan Trowbridge, MS, MA, MD |
| Dermatology | Dermatology | Dermatology | Dermatology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 38 Years of Experience | 19 Years of Experience | 8 Years of Experience | 12 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, Spanish | Speaks English | Speaks English, Spanish, Italian, Hindi | Speaks English |
| Marshall , TX | Houston , TX | Orlando , FL | Elkhorn , NE |
| Med School: Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med | Med School: Loyola University Stritch School of Medicine | Med School: Columbia University College Of Physicians & Surgeons | Med School: Creighton University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Mark S Wallis
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Mark S Wallis has the following 2 specialties
Specialty Expertise
Dr. Mark S Wallis has the following 12 areas of expertise
Certifications, License, & Education
38 Years Experience
MEDICAL LICENSE
Medical Doctor, Texas, 2025, Expired
EDUCATION & TRAINING
Medical School
Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof MedGraduated in 1988
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Frequently Asked Questions
- How can I make an appointment with Dr. Mark Wallis?
- You can find contact information for Dr. Mark Wallis here on Vitals.
- Does Dr. Mark Wallis accept my insurance?
- You can see the insurance plans that Dr. Mark Wallis accepts on their Vitals profile.
- Where is Dr. Mark Wallis's office located?
- Dr. Mark Wallis's office is located at 1900 S Washington Ave Ste E, Marshall, TX, 75670.
- Does Dr. Mark Wallis accept virtual/telehealth appointments?
- Dr. Mark Wallis has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Which hospitals is Dr. Mark Wallis affiliated with?
- Dr. Mark Wallis is affiliated with Longview Regional Medical Center Lp.
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