Dr. David Gass, MD | Tyler, TX | Internal Medicine

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Dr. David Gass is an Internal Medicine physician who specializes in Pulmonology, bringing 45 years of experience to patient care. He earned his medical degree from Southern Illinois University School of Medicine in Springfield, Illinois. Dr. Gass completed his residency training at Memorial Health University Medical Center and the William Jennings Bryan Dorn VA Hospital, followed by fellowship training in Pulmonary Diseases at Memorial Health-University Medical Center. He maintains board certification in Internal Medicine from the American Board of Internal Medicine and provides care in English.

Dr. Gass practices at UT Health Carthage and sees patients at UT Health East Texas Physicians-Pulmonology in Tyler, Texas, as well as UT Health Athens in Athens, Texas. His clinical expertise focuses on treating chronic lung disease and COPD, including complex cases involving multiple health conditions. He performs pulmonary function testing to evaluate lung health and breathing capacity. …Patients have given Dr. Gass an average rating of 4.7 out of 5 stars.

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4.7

20 Ratings
45 years of experience
39 insurance plans accepted
speaks English
Mem Health University Med Center
7 written reviews
2 specialties
8 areas of expertise
2 board certifications
1 hospital affiliation
2 office locations
Male

20 ratings & reviews

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Showing 1 to 7 of 7 reviews

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Professional

February 10th, 2026 | Source: Partner

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Enjoyed the honesty and openness of this visit. What a welcoming feeling to know we are getting a doctor with common sense.

January 14th, 2026 | Source: Partner

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Great Doctor, lucky to have him!!!!!

September 7th, 2023

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I really like DR. Gass, he is very caring and professional. I recently needed a biopsy, I was staying positive things would be fine, yet still quite nervous. When my results came back negative DR Gass got me in to give me the great news right away. Although I was calm in his office I went home and cried my eyes out, I was more worried than I let on and it hit me afterwards. DR. Gass truely cares about his patients and it shows.

June 23rd, 2023

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BUT -- D. Gass makes it bearable ! His pleasant and positive style make my visits much less dreaded than previous doctors . Dottie

August 23rd, 2018

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This Dr is a hoot,I am happy our paths croseed,what I like about him,he is not like most Dr!s.he was not a 5 min Dr,if u get my drift.I have good sense of humor and so did he,I ask who shine his shoes,He said I did,,lolhe took the time to explain ever thing to me,can!t wait ti vivist him again.............He is the type ofDr,I love to call my freind

July 14th, 2015

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I am so grateful for Dr. Gass. He walked my family and I through every test and answered every question. He made sure he knew the name of everyone in the waiting room waiting for my biopsy. Dr. Gass was calm and patient with all of us. Everyone in his office has been helpful, kind and patient. He and his staff possess and demonstrated all the characteristics my family and I needed as we faced the possibility of lung cancer. I am so thankful my primary care physician sent me to Dr. Gass.

April 14th, 2014

UT Health East Texas Physicians- Pulmonology, an outpatient department of UT Health Tyler

912 S. Fleishel Ave.Tyler, TX 75701

Tel: (903) 592-6901

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

UT Health Athens

2000 S Palestine StAthens, TX 75751

Tel: (903) 676-1000

Mon12:01 am - 11:59 pm

Tue12:01 am - 11:59 pm

Wed12:01 am - 11:59 pm

Thu12:01 am - 11:59 pm

Fri12:01 am - 11:59 pm

Sat12:01 am - 11:59 pm

Sun12:01 am - 11:59 pm


Dr. David Gass, MD	Dr. Sarah Laibstain, MD	Eric Harker	Dr. Claudia Makhoul, MD
Internal Medicine	Internal Medicine	Internal Medicine	Internal Medicine
	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.7 (20 Ratings)	4 (6 Ratings)	3.9 (7 Ratings)	4.3 (17 Ratings)
45 Years of Experience		25 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English, Spanish	Speaks English	Speaks French, Arabic, English
Tyler , TX	Dallas , TX	Lyons , CO	Houston , TX
Med School: Southern Il Univ Sch Of Med- Springfield Il		Med School: Duke University School Of Medicine
Current Profile	View Profile	View Profile	View Profile

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Angiographic Visualization
Asthma
Chest Infection
Chronic Obstructive Pulmonary Disease (COPD)
Emphysema
Pneumonia
Pulmonology
Tuberculosis (TB)

BOARD CERTIFICATIONS

American Board of Internal Medicine

Internal medicine

MEDICAL LICENSE

Medical Doctor, Texas, 2026, Active

EDUCATION & TRAINING

Residency

Mem Health University Med Center

Wm Jennings B Dorn Va Hosp, Pulmonary Diseases; Mem Hlth-Univ Med Ctr, Internal Medicine

Medical School

Southern Il Univ Sch Of Med- Springfield IlGraduated in 1981

Southern Illinois University At EdwardsvilleGraduated in 1981

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Which hospitals is Dr. David Gass affiliated with?: Dr. David Gass is affiliated with Ut Health Carthage.
Is Dr. David Gass accepting new patients?: Dr. David Gass has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. David Gass accept virtual/telehealth appointments?: Dr. David Gass has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. David Gass?: You can find contact information for Dr. David Gass here on Vitals.
Where is Dr. David Gass's office located?: Dr. David Gass's office is located at 912 S. Fleishel Ave., Tyler, TX, 75701.

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