4.7
62 Ratings with 42 written Reviews
Summary
Dr. Mark Wallis treats psoriasis, squamous cell skin cancer, and basal cell skin cancer, and performs pathology tests and surgical pathology. He has practiced dermatology and dermatologic surgery for 38 years and is affiliated with Longview Regional Medical Center LP. He earned his medical degree from the University of Texas Health Science Center at San Antonio. He sees patients in Marshall and Longview, Texas, and speaks English and Spanish. Patients on Vitals rate Dr. Wallis 4.74 out of 5.
Overview based on verified provider data
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
- 1 hospital affiliation
- 3 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
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. Ryan Trowbridge, MS, MA, MD | Dr. Anne E Allen, MD | Dr. Anna Chacon, MD |
| Dermatology | Dermatology | Dermatology | Dermatology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 38 Years of Experience | 12 Years of Experience | 9 Years of Experience | 14 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English, Spanish | Speaks English | Speaks English | Speaks English, French, Spanish |
| Marshall , TX | Elkhorn , NE | Knoxville , TN | Miami , FL |
| Med School: Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med | Med School: Creighton University School Of Medicine | Med School: University Of Michigan Medical School | Med School: Brown Medical School |
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
Dr. Mark S Wallis holds an expired medical license in the state of Texas.
Medical License
Medical Doctor with an expired medical license in the state of Texas that expired in 2025.
Education & Training
Medical School
Graduated from Univ Of Tx Hlth Sci Ctr At San Antonio Joe R & Teresa Lozano Long Schof Med in 1988.
NPI Number
Dr. Wallis' NPI number is 1861489049.
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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.
- What languages does Dr. Mark Wallis speak?
- Dr. Mark Wallis speaks English and Spanish.
- 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.
- 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.
- Which hospitals is Dr. Mark Wallis affiliated with?
- Dr. Mark Wallis is affiliated with Longview Regional Medical Center Lp.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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