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Maryann Osayande, M.D.
Gastroenterologist
About Maryann Osayande, M.D.
Dr. Maryann Osayande is a Gastroenterologist with Texas Digestive Disease Consultants. Dr. Osayande is a Houston native and completed her undergraduate degree in psychology at Tulane University. After graduation with her Bachelor of Science, she worked with mental health patients at a private group home. She then went to University of Texas Medical Branch for medical school, Duke University for Internal Medicine residency, and University of Texas Southwestern Medical center to complete her Gastroenterology and Hepatology fellowship. Dr. Osayande has a broad interest in Gastroenterology and Hepatology, and she provides thoughtful and comprehensive care for a wide range of gastrointestinal and liver disorders. She performs upper endoscopy, colonoscopy, and capsule endoscopy. She is fluent in English.
Education
- Undergraduate: University of Houston and Tulane University
- Medical School: University of Texas Medical Branch
- Residency: Duke University
- Fellowship: University of Texas Southwestern Medical Center
Memberships / Affiliations
- American Gastroenterological Association
- American College of Gastroenterology
- American Society for Gastrointestinal Endoscopy
- Texas Society of Gastroenterology and Endoscopy
Procedures
- Upper GI Endoscopy
- Open Access Colonoscopy
- Diagnostic Colonoscopy
- Colonoscopy
- Flexible Sigmoidoscopy
- Small Bowel Capsule Endoscopy
- Esophageal Dilation
- Feeding Tube (PEG) insertion
- Infusion Treatment
Specialties
- Colon Cancer Screening
- Abdominal pain and discomfort
- Nausea and vomiting
- Bleeding in the digestive tract
- Constipation and diarrhea
- Diverticular disease
- Difficulty swallowing
- Heartburn and gastroesophageal reflux disease (GERD)
- Liver diseases (Viral Hepatitis, Fatty liver disease, autoimmune liver diseases)
- Inflammatory bowel diseases (Crohn’s Disease, Ulcerative Colitis, Microscopic Colitis)
- Irritable Bowel Syndrome
- Hiatal Hernia
- Pancreas Diseases
Reviews
I had a procedure performed by Dr. Osayande, and I couldn’t be more pleased with the experience. From the initial consultation to the post-procedure follow-up, everything was handled with professionalism, care, and clear communication.
Very nice office and staff. Everyone is pleasant and helpful. So quiet and calming. Dr. Osayande is very easy to talk to and very knowledgeable. She listens and asks questions to help in assessing patients.
Nice clean quiet facility. Friendly staff. Doctor is confident and personable.
Dr. Osayande is very patiently friendly
She is a good listener and is responsive to questions and concerns. She is a great addition
to GI Alliance
She is a good listener and is responsive to questions and concerns. She is a great addition
to GI Alliance
Came for routine annual visit - first time with Dr O. She did great.
Dr Osayande was kind and caring. Genuinely wanted to hear my questions. She took her time explaining the procedure and had positive disposition. The receptionist was not welcoming nor hospitable.The pre and post nurses were very attentive. The finance secretary at the end of the visit was kind and courteous.
I absolutely LOVE when a doctor respects my time and I found this to be true with Dr Osayande. I checked in and within minutes was brought back with the nurse. And again, within minutes, I was being welcomed by the doctor. She thoroughly explained my upcoming procedure and assured my comfortability at every stage. Felt extremely comfortable and confident in her ability to treat me.
I am very happy with choosing Maryann as my doctor. She is very warm with me and inspires a lot of confidence in me.
I was extremely concerned about my pain and discomfort when visiting Dr Osayande Feb 18. However her calming demeanor assuring me that the medication I was prescribed was correct calmed my fears about the unknown illness I had. Thankfully i am feeling much better by obeying her instructions. Thank you
Dr Osayande is very thorough, attentive and kind. She is obviously very knowledgeable and thoughtful in her recommendations for treatment.
She’s a very nice and work with exceptional professionalism I am very grateful that she’s taking care of me sincerely Hao Keng An
Doctor Osayande listened carefully and asked appropriate questions. She is compassionate and kind.
I had a great visit with my doctor, very professional and informative five stars
I had a most awesome first-time visit with Dr. Osayande. She went over many questions and provided answers when appropriate. She was thorough and knowledgeable about GI issues, which is her specialty. She explained everything in detail and assured me during my visit.
The staff and nurses are friendly and courteous as well. It is a good idea to fill out all paperwork prior to your first visit. She accepts new patients and is truly a doctor who listens to you.
I am glad I got an appointment the next day due to a cancelation.
Thank you
Dr Osayande
The staff and nurses are friendly and courteous as well. It is a good idea to fill out all paperwork prior to your first visit. She accepts new patients and is truly a doctor who listens to you.
I am glad I got an appointment the next day due to a cancelation.
Thank you
Dr Osayande
I cannot say enough great things about Dr. Maryann Osayande (Dr. O)—she is truly a lifesaver! 🙌
For the past seven months, I had been dealing with brutal heartburn—to the point where I couldn’t sleep at night. Like many people, I made the mistake of consulting Dr. Google (which I do not recommend), and I became terrified—reading about everything from esophageal cancer to other serious conditions.
I initially saw my PCP, who prescribed medicine and told me taking Tums was fine, but I wasn’t getting real relief. I had reached my breaking point and decided I needed to see a specialist who truly understood my concerns.
As a Black woman, I wanted a Black doctor who specialized in gastroenterology, knowing that different ethnic groups have unique health factors that need to be considered. That’s when I found Dr. O, and I am beyond grateful.
Why Dr. O & Her Team Are Exceptional:
✅ Same-Week Appointment! – I called over SEVEN gastroenterologists, and the earliest appointment anyone else had was March. Dr. O’s office got me in within two days! That alone was a WOW factor.
✅ Efficient & Caring Staff – The office runs smoothly and professionally. No long waits, no wondering if they forgot about you—just prompt, attentive, and compassionate care.
✅ Reassurance & Expertise – Dr. O immediately put my worries at ease. She explained that heartburn is common but that I needed a stronger medication to manage it properly.
✅ Personalized Treatment Plan – Instead of pushing unnecessary procedures, she listened to my concerns and worked with me to find the best approach for my lifestyle.
The Treatment That Changed Everything 💊
Dr. O prescribed me a stronger medication, and within just three weeks, my symptoms dramatically improved. I now take it every other day (so I don’t become dependent on medication), and I finally feel like myself again.
She also suggested an EGD procedure to assess my condition further, but as a global speaker and event organizer, I couldn’t afford to be down for 14+ days when I had a major speaking engagement coming up. Instead, we agreed to start with medication first, and I’ll follow up in six months.
The best part? I can now eat without fear. Something as simple as a banana no longer triggers painful heartburn.
Final Thoughts: If You Need a Gastroenterologist, See Dr. O!
I am beyond grateful for Dr. O and her team. If you’re looking for a specialist who listens, cares, and actually provides solutions, she is THE doctor to see.
👏 Thank you, Dr. O, for restoring my health and peace of mind. You and your amazing team have a patient for life!
#DrMaryannOsayande #HoustonGastroenterologist #HeartburnRelief #LifeChangingCare
**Recognized with honor by Lovely Marshall, Forbes Influencer ◆ Gl🌍bal Speaker ◆ Podcast Host of Powerhouses of the Global Corporate Stage. Your service inspires greatness!**
For the past seven months, I had been dealing with brutal heartburn—to the point where I couldn’t sleep at night. Like many people, I made the mistake of consulting Dr. Google (which I do not recommend), and I became terrified—reading about everything from esophageal cancer to other serious conditions.
I initially saw my PCP, who prescribed medicine and told me taking Tums was fine, but I wasn’t getting real relief. I had reached my breaking point and decided I needed to see a specialist who truly understood my concerns.
As a Black woman, I wanted a Black doctor who specialized in gastroenterology, knowing that different ethnic groups have unique health factors that need to be considered. That’s when I found Dr. O, and I am beyond grateful.
Why Dr. O & Her Team Are Exceptional:
✅ Same-Week Appointment! – I called over SEVEN gastroenterologists, and the earliest appointment anyone else had was March. Dr. O’s office got me in within two days! That alone was a WOW factor.
✅ Efficient & Caring Staff – The office runs smoothly and professionally. No long waits, no wondering if they forgot about you—just prompt, attentive, and compassionate care.
✅ Reassurance & Expertise – Dr. O immediately put my worries at ease. She explained that heartburn is common but that I needed a stronger medication to manage it properly.
✅ Personalized Treatment Plan – Instead of pushing unnecessary procedures, she listened to my concerns and worked with me to find the best approach for my lifestyle.
The Treatment That Changed Everything 💊
Dr. O prescribed me a stronger medication, and within just three weeks, my symptoms dramatically improved. I now take it every other day (so I don’t become dependent on medication), and I finally feel like myself again.
She also suggested an EGD procedure to assess my condition further, but as a global speaker and event organizer, I couldn’t afford to be down for 14+ days when I had a major speaking engagement coming up. Instead, we agreed to start with medication first, and I’ll follow up in six months.
The best part? I can now eat without fear. Something as simple as a banana no longer triggers painful heartburn.
Final Thoughts: If You Need a Gastroenterologist, See Dr. O!
I am beyond grateful for Dr. O and her team. If you’re looking for a specialist who listens, cares, and actually provides solutions, she is THE doctor to see.
👏 Thank you, Dr. O, for restoring my health and peace of mind. You and your amazing team have a patient for life!
#DrMaryannOsayande #HoustonGastroenterologist #HeartburnRelief #LifeChangingCare
**Recognized with honor by Lovely Marshall, Forbes Influencer ◆ Gl🌍bal Speaker ◆ Podcast Host of Powerhouses of the Global Corporate Stage. Your service inspires greatness!**
Great service for my procedure!
Had my 1st visit with Dr. Osayande. The staff was pleasant and attentive. Dr. Osayande was easy to talk to and she listened. She made me feel at ez being a new patient.
Great staff and professional services
I have been feeing so light/great after this procedure. The doctor and staff were excellent! Thanks and God bless!
Dr. Maryann Osaydne is an excellent doctor. As a new patient, she took the time to answer my questions. She asked questions about my prior Healthcare and the procedures I normally require. She immediately scheduled an appointment for my colonoscopy and my US liver x-ray.