Dr. Jason M. Haas, DO | Springfield, MO | Gastroenterology

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Dr. Jason Haas is a gastroenterologist and internal medicine specialist with 18 years of experience treating digestive and internal health conditions. He earned his medical degree from A T Still University Kirksville College of Osteopathic Medicine and brings extensive expertise to both preventive care and complex gastrointestinal disorders. Dr. Haas speaks English and provides comprehensive care for patients seeking specialized digestive health services.

Dr. Haas practices at multiple locations in Springfield and Chesterfield, Missouri, with affiliations at CoxHealth Medical Center South, Meyer Orthopedic and Rehabilitation Hospital, and Saint Lukes Hospital. He specializes in treating conditions such as hemorrhoids, colon polyps, and diverticular disease. His procedural expertise includes performing colonoscopies and both upper and lower gastrointestinal endoscopies to diagnose and treat various digestive concerns. Patients have given him an average rating of 4.2 out of 5 stars.

AI-generated from data on this provider profile.

accepting new patients
4.2

10 Ratings
18 years of experience
speaks English
A T Still University Kirksville College Of Osteopathic Medicine
5 written reviews
2 specialties
9 areas of expertise
2 board certifications
3 hospital affiliations
5 office locations
Male

10 ratings & reviews

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Showing 1 to 5 of 5 reviews

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Had a procedure which I was super nervous about the staff put me at ease then I met Dr. Haas what a great doctor bedside manner tops at best explanation of what to expect awesome. Thank You Dr. Haas and staff.

February 29th, 2020

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This has been the most frustrating and horrible medical experience I've had. Phone calls are not returned, our appointment was cancelled because the dr. didn't feel it necessary to see us although ulcerative colitis was out of control. TERRIBLE, unprofessional advice was given to us over the phone that further complicated the issue. When we switched doctors, we were unable to get medical information and records.

October 9th, 2018

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Dr. Haas has a full schedule, but when you do see him, he is very caring and listens intently. He is thorough yet decisive in taking action. He explains his thoughts well and gives you a chance to question anything else you may need clarification on.

July 31st, 2017

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I recently visited Dr. Haas for my first colonoscopy. The whole process was very simple, and Dr. Haas and the staff were very kind, professional, and efficient. Overall, they made the best of a potentially difficult situation. I highly trust and recommend Dr. Haas and his wonderful staff.

July 8th, 2017

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Dr. Haas was extremely caring and took time to explain to me what was going on, and in a way that I could understand. I have never had a doctor explain my condition to me like that before. I felt like I was part of the decision making process. I have already set other family members to him. Very good doctor.

April 25th, 2012

CoxHealth - Gastroenterology

3901 S. Fremont Ave. Floor 4Springfield, MO 65804

Saint Lukes Hospital

232 S Woods Mill RdChesterfield, MO 63017

Tel: (314) 434-1500

Gateway Gastroenterology

121 Saint Lukes Center Dr Ste 406Chesterfield, MO 63017

Tel: (314) 529-4900

Mon8:00 am - 4:00 pm

Tue8:00 am - 4:00 pm

Wed8:00 am - 4:00 pm

Thu8:00 am - 4:00 pm

Fri8:00 am - 4:00 pm

SatClosed

SunClosed

Saint Louis Multispecialty Surgery Center

884 Woods Mill Rd Ste 100Ballwin, MO 63011

Tel: (636) 779-0079

Mon7:30 am - 5:00 pm

Tue7:30 am - 5:00 pm

Wed7:30 am - 5:00 pm

Thu7:30 am - 5:00 pm

Fri7:30 am - 5:00 pm

SatClosed

SunClosed

Saint Lukes Hospital

232 S Woods Mill Rd Ste 330EChesterfield, MO 63017


Dr. Jason Martin Haas, DO	Shauna Sanderson, APRN	Rebecca Humphries, APRN	Ashley Anderson, APRN
Gastroenterology	Gastroenterology	Gastroenterology	Gastroenterology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.2 (10 Ratings)	0 (0 Ratings)	0 (0 Ratings)	0 (0 Ratings)
18 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English	Speaks English	Speaks English
Springfield , MO	Tallahassee , FL	SACRAMENTO , CA	SACRAMENTO , CA
Med School: A T Still University Kirksville College Of Osteopathic Medicine	Med School: Creighton University College of Nursing	Med School: Emory University	Med School: East Tennessee State University - Quillen College of Medicine
Current Profile	View Profile	View Profile	View Profile

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Abdominal Pain
Acid Reflux Disease (GERD)
Celiac Disease
Colonoscopy
Constipation
Hemorrhoids
Internal Medicine
Irritable Bowel Syndrome (IBS)
Ulcerative Colitis

MEDICAL LICENSE

Doctor Of Osteopathy, Missouri, 2026, Expired

EDUCATION & TRAINING

Medical School

A T Still University Kirksville College Of Osteopathic MedicineGraduated in 2008

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What languages does Dr. Jason Haas speak?: Dr. Jason Haas speaks English.
Is Dr. Jason Haas accepting new patients?: Dr. Jason Haas is accepting new patients on Vitals. View Dr. Jason Haas's profile on Vitals to make an appointment.
How can I make an appointment with Dr. Jason Haas?: You can find contact information for Dr. Jason Haas here on Vitals.
Where is Dr. Jason Haas's office located?: Dr. Jason Haas's office is located at 3901 S. Fremont Ave. Floor 4, Springfield, MO, 65804.
Does Dr. Jason Haas accept my insurance?: You can see the insurance plans that Dr. Jason Haas accepts on their Vitals profile.

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