
Highlights
About Samir Ouais
Professional Statement
Dr. Samir Ouais is a board-certified endocrinologist specializing in comprehensive diabetes management, thyroid malignancies, and pituitary-adrenal disorders. He provides expert care for a wide range of endocrine conditions at our Galleria clinic.
Dr. Ouais earned his medical degree from Damascus University College of Medicine in Syria. He completed his internal medicine residency at Philadelphia General Hospital and the University of Iowa Hospitals, followed by a fellowship in endocrinology at The University of Texas M.D. Anderson Hospital and Tumor Institute in Houston.
With decades of experience, Dr. Ouais is known for his thorough, patient-centered approach and commitment to delivering high-quality, personalized care in endocrinology.
Clinical Interests
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Adrenal disorders
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Adrenal mass
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Adrenal neoplasm
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Adrenal nodules
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Cholesterol disorders
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Diabetes mellitus
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Diabetes type 1 and type 2
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Endocrine disorders
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Grave's disease
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Hashimoto thyroiditis
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Hyperglycemia
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Hyperthyroidism
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Hypoalphalipoproteinemia
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Hypoglycemia
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Hypothyroidism
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Osteoporosis
Video
Locations
- CLS Health Endocrinology Associates - Houston Galleria
- 4615 Southwest Freeway, Suite 1000, Houston, TX 77027
- Get Directions
- phone: 346-613-1423
- fax: 346-396-0908
- Endocrinology Galleria 900
- 4615 Southwest Freeway, Suite 900, Houston, TX 77027
- Get Directions
- phone: 346-613-1423
- fax: 346-396-0908
Expertise
Education
- Physical Medicine and Rehabilitation Residency: Mount Sinai School of Medicine
- Residency: University of Iowa Hospital, Internal Medicine
- Residency: Philadelphia General Hospital, Internal Medicine
- Fellowship: The University of Texas Health M.D. Anderson Hospital and Tumor Institute , Endocrinology, 1971
- Medical School: University of Damascus Faculty of Human Medicine, Internal Medicine , 1965
Insurance
- Aetna : Aetna Choice POS II
- Aetna : Aetna Medicare Advantage Plans
- Aetna : Aetna Open Access Elect Choice
- Aetna : Elect Choice
- Aetna : Managed Choice
- Aetna : Open Access Select
- Aetna : Open Choice PPO
- Ambetter Superior Health : Superior Ambetter Core (Complete, Clear, Focused, Standard Silver and Gold)
- Ambetter Superior Health : Superior Ambetter Value (Clear Value Silver, Focused Value Silver, CMS Standard Silver & Gold Value, Everyday Value Gold)
- Ambetter Superior Health : Superior Ambetter Virtual (Ambetter Virtual Access Silver, CMS Standard Virtual Access Basic Silver, Ambetter Virtual Access Gold)
- Ambetter Superior Health : Superior Health Plan MAPD (Medicare Advantage Prescription Drug)
- Ambetter Superior Health : Superior Health Plan Medicare
- Ambetter Superior Health : Superior Health Plan MMP Medicare
- Beechstreet PPO
- Blue Cross Blue Shield : BCBS MyBlue Health (Marketplace)
- Blue Cross Blue Shield : Blue Choice PPO
- Blue Cross Blue Shield : Blue Essentials
- Blue Cross Blue Shield : Blue Essentials Access
- Blue Cross Blue Shield : Consumer Directed HealthSelect in Area
- Blue Cross Blue Shield : HealthSelect
- Blue Cross Blue Shield : HealthSelect of Texas In Area
- Blue Cross Blue Shield : HealthSelect of Texas Out of State
- Blue Cross Blue Shield : HealthSelect Secondary 65+
- Blue Cross Blue Shield : Medicaid (CHIP, STAR)
- Blue Cross Blue Shield : Medicare Advantage (HMO, PPO)
- Blue Cross Blue Shield : Medicare Advantage HMO
- Blue Cross Blue Shield : Medicare Advantage PPO
- Blue Cross Blue Shield : POS
- Blue Cross Blue Shield : Traditional/Par Plan
- Blue Cross Blue Shield : TRS-Active Care
- Blue Cross Blue Shield : TRS-Care Standard
- Brazoria County Employees – Aetna TPA Brazoria County Employees
- Carnival Cruise Lines PPO
- Community Health Choice : Dual-Special Needs Plan (D-SNP)
- Community Health Choice : Marketplace
- Community Health Choice : Medicaid (CHIP, STAR)
- Community Health Choice : Medicare Advantage
- Community Health Choice : Premier
- Curative/First Health
- Devoted Health
- Entrust/90 Degree Benefits
- Envolve Benefit Options Vision-PPO, HMO
- First Health
- First health PPO
- First Health Workers’ Comp
- Galaxy Health Network
- Healthsmart Payors Organization
- HealthSmart Preferred Care
- HealthSmart Preferred Care Accel
- HealthSmart Preferred Care PPO
- Humana : ChoiceCare PPO
- Humana : EPO, HMO, PPO Plans
- Humana : HMO Premier
- Humana : Human Gold Plus - Medicare Advantage HMO & Special Needs Plan
- Humana : Humana Gold Choice - Medicare Advantage Private Fee-for-Service (PFFS) plan
- Humana : HumanaChoice - Medicare Advantage PPO plan
- Humana : Medicare
- Humana : Military (TRICARE South Region Military Health Plan)
- Humana : POS - including Choice POS, National POS Open Access/Plus and Preferred POS Open Access.
- Medicare Traditional
- Memorial Hermann Health Solutions Commercial and Medicare
- Molina Healthcare
- Molina Healthcare Marketplace
- Molina Healthcare Medicaid (STAR)
- Molina Healthcare Medicare Advantage
- Molina Medicare Complete Care HMO SNP
- Multiplan
- Multiplan AllyAlign Health
- Multiplan American Health Plans
- multiplan Auto & Worker's Comp
- Multiplan Florida Complete Care
- Multiplan Gold Kidney Health Plan
- Multiplan Imperial Health
- Multiplan Independent Health
- Multiplan Kaiser Foundation Health Plan (Colorado & Washington)
- Multiplan Mass Advantage
- Multiplan Medicare Advantage
- Multiplan PPO
- Multiplan Presbyterian Health Plan
- Multiplan PriorityHealth
- Multiplan Provider Partners
- Multiplan SCAN
- Multiplan UCare
- Multiplan Vantage Health Plan
- Multiplan Verda Healthcare
- Multiplan Zing Health
- Texas Children's Health Plans
- Three Rivers
- Tricare (Humana) PPO/Prime
- United Healthcare : AARP
- United Healthcare : C-SNP
- United Healthcare : Care Improvement Plus
- United Healthcare : Charter
- United Healthcare : Choice
- United Healthcare : Commercial, HMO, POS, EPO and PPO Plans
- United Healthcare : D-SNP
- United Healthcare : Doctors Plan
- United Healthcare : Erickson Advantage
- United Healthcare : ERS Medicare Advantage
- United Healthcare : Freedon
- United Healthcare : Heritage
- United Healthcare : I-SNP
- United Healthcare : Indemnity
- United Healthcare : Medicaid (CHIP, STAR)
- United Healthcare : Medicare Advantage
- United Healthcare : Navigate
- United Healthcare : Nexus ACO
- United Healthcare : Options PPO
- United Healthcare : Passport Connect
- United Healthcare : Select
- United Healthcare : TRS-Care Medicare Advantage
- United Healthcare : United Healthcare Medicare Complete
- United Healthcare : UnitedHealthcare Chronic Complete
- United Healthcare : UnitedHealthcare Dual Complete
- United Healthcare : UnitedHealthcare Group Medicare Advantage PPO
- United Healthcare : Wellmed
- United Healthcare : Wellmed Dual SNP Focus
- United Healthcare : Wellmed Medicare Advantage Focus
- US Family Health Plan
- VA Community Cares Network CCN
- Wellcare
- Wellpoint (Amerigroup) : C-SNP
- Wellpoint (Amerigroup) : D-SNP
- Wellpoint (Amerigroup) : I-SNP
- Wellpoint (Amerigroup) : Medicare Advantage
- Wellpoint (Amerigroup) : Medicare Advantage HMO
Ratings & Reviews
4.7 out of 5
46 ratings, reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 7/23/2024
Dr. Ouais is an excellent endocrinologist. My previous doctor had prescribed much too low of a dose of thyroid meds, which he immediately recognized before even getting my labwork back. Additionally, he ordered a neck ultrasound which I had not had in years after having thyroid cancer in 1998. It was a nice reassurance that Dr. Ouais was putting my health first and being thorough. I also really appreciate the time he takes to understand my other health issues in order to treat me as a whole patient. His nurse and staff are awesome as well, and I love having a Quest lab in the office, so I don’t have to go to another location for tests. Thank you Dr. Ouais for excellent care.
- 5 out of 5 starsReviewed on 8/9/2024
This doctor is very good and gentle with his patients and care for them
- 5 out of 5 starsReviewed on 7/17/2024
Dr Ouais is an amazing doctor and person. Really took the time to listen to me and everything that has been going on. Really patient with me, great bedside manners. And made sure to develop some kind of plan to figure out what was going on.
- 5 out of 5 starsReviewed on 9/22/2025
- 5 out of 5 starsReviewed on 3/8/2026
- 5 out of 5 starsReviewed on 9/2/2025
The Dr listened and was very helpful
- 5 out of 5 starsReviewed on 2/6/2024
Dr. Samir was very knowledgeable. He listened to my story and asked lots of questions. I have had a lot of health issues, and other doctors rarely take the time to truly understand and make connections. In Dr. Samir’s care, I feel like I’m on the right track again with my thyroid and my health.
- 5 out of 5 starsReviewed on 10/8/2024
Tatiana was GREAT. When there is no communication it can leave room for misunderstandings. I appreciate her call and thoroughly going over how this particular office does things and I'm grateful.
- 5 out of 5 starsReviewed on 8/20/2024
Dr. Ouais and his staff was thorough, he was patient and explained things without making me feel like I didn't understand. He was nice and welcoming and I'm happy I selected him as a provider.
- 5 out of 5 starsReviewed on 12/25/2024
- 5 out of 5 starsReviewed on 1/8/2025
- 5 out of 5 starsReviewed on 10/7/2025
DrSamir is very patient & answered all my concerns.. explained me everything twice & also made sure tht I understood the reason why he was prescribing the med for me. He is really good
- 5 out of 5 starsReviewed on 4/21/2026
- 5 out of 5 starsReviewed on 4/14/2026
I really like The Care taken and shown by Dr. Samir Ouais MD. He always takes His time to explain You and gives You the best solutions for the best results. You feel good after every visit. He makes the difficult seem easy. I owe him 15 lbs when I see Him again... and I'm determined, and going to make it. Excellent Doctor and Staff. Olivier G.
- 5 out of 5 starsReviewed on 3/27/2026
The doctor was thorough with all my questions. He offered other services he felt I would benefit from.
- 5 out of 5 starsReviewed on 3/6/2026
- 5 out of 5 starsReviewed on 6/12/2024
Best appointment, my doctor took his time and I feel very safe here
- 5 out of 5 starsReviewed on 8/7/2025
I have a wonderful endocrinologist by the name of Dr. Ouais. He is very kind and caring, he is understanding. I look forward to my visit with him every time. ?? ??
- 5 out of 5 starsReviewed on 7/24/2024
Nurse Merlin was great
- 5 out of 5 starsReviewed on 3/25/2025
I liked that Dr. Ouais didn't just push medicines on me. He asked questions, and seeked to understand first. He starting me easy on the meds while also waiting on other doctors orders and meds.
- 5 out of 5 starsReviewed on 12/19/2025
Medical staff was friendly and Dr Samir was very attentive and listened to my concerns
- 5 out of 5 starsReviewed on 5/9/2025
Dr Samir very professional make you feel like family explain everything very good the staff very friendly thank you so much
- 5 out of 5 starsReviewed on 7/25/2024
- 5 out of 5 starsReviewed on 4/1/2025
- 5 out of 5 starsReviewed on 2/20/2024
One of the wisest, most knowledgeable in his field. Has a different take on tackling diabetes and thyroid disorders. He showed me the beauty of the field of endocrinology. Highly recommend trusting his care.
- 5 out of 5 starsReviewed on 5/29/2025
- 5 out of 5 starsReviewed on 2/25/2025
Excelente atención, buen profesional. Buena comunicación y relación médico-paciente. Soy médico anestesiólogo y por eso considero buen médico
- 5 out of 5 starsReviewed on 9/25/2024
Took the time to thoroughly read / explain bloodwork and find the next best steps!
- 4 out of 5 starsReviewed on 5/31/2024
Me sentí muy cómoda en este lugar , con la asistente Merlin y el Dr. además de la muchacha del frente .
- 5 out of 5 starsReviewed on 8/27/2024
- 5 out of 5 starsReviewed on 9/18/2024
Dr. Ouais was great! Very attentive and very much concerned. He is very fast and I wasn’t there long like most doctors offices. I see him again in 3 weeks and I’m excited to see what he can help me with for as my diabetes. He is not familiar with transgender care, but he promised me he’ll treat me until he finds me another endocrinologist that’s familiar with transgender care and hormones. Very great doctor and I am happy I found him.
- 5 out of 5 starsReviewed on 11/13/2024
Very Skilled active Doctor.. Good experience and very knowledgeable
- 5 out of 5 starsReviewed on 5/7/2024
- 5 out of 5 starsReviewed on 7/2/2025
Excelente atención, se siente una genuina preocupación por el bienestar de los pacientes
- 5 out of 5 starsReviewed on 8/9/2024
"Dr. Samir is so sincere, thoughtful, carinjg, and KNOWLEDGEABLE. He did order thorough blood work and carefully read the results to give me medical advice. He asked great questions about my past medical history that connect to my current medical issues. He truly touched my heart wanting to help me with referrals to other doctors that could help me with the "" domino effect "" that my difficulties walking have lead to other problems. He is simply the BEST ,most authentic doctor I have ever encountered in my life. I have all faith and trust in his medical expertise. I hope you get to him as soon as possible, he is THE BEST!"
- 5 out of 5 starsReviewed on 1/30/2026
Personality everyone had a good personality and a Warm welcome.
- 5 out of 5 starsReviewed on 12/30/2025
- 5 out of 5 starsReviewed on 8/22/2024
- 5 out of 5 starsReviewed on 7/30/2024
He is very good doctor. He give you time to explain for him and he listened to you. And I really do think him and his nurse, which is her name merlin
- 5 out of 5 starsReviewed on 2/20/2024
Dr Ouais gets 10 stars! Very patient and thorough! He was very knowledgeable and informative.?
- 5 out of 5 starsReviewed on 3/25/2025
EVERYONE was amazing!! My 1st first was easy peasy.
- 5 out of 5 starsReviewed on 1/2/2026
First time seeing this endocrinologist the entire staff and he were compassionate and kind. He also pushed my treatment further in 2 distinct ways that had not been recommended by any other endocrinologist and I have seen this specialty for many years. I am confident that my health will be much better controlled now!