Gastroenterology

• Gastroesophageal Reflux Disease (GERD) & Heartburn – Chronic acid reflux causing heartburn and esophageal damage. 
• Barrett’s Esophagus – A condition where long-term GERD causes changes in esophageal tissue, increasing cancer risk. 
• Eosinophilic Esophagitis (EoE) – An allergic inflammatory condition causing difficulty swallowing (dysphagia). 
• Dysphagia (Swallowing Disorders) – Difficulty swallowing due to esophageal motility disorders or strictures. 
• Esophageal Disorders & Disease – Includes motility disorders like achalasia and structural issues like strictures. 

• Gastroparesis – Delayed stomach emptying causing nausea, vomiting, and bloating. 
• Ulcers – Open sores in the stomach or small intestine, often due to H. pylori infection or NSAID use. 
• Celiac Disease – An autoimmune disorder triggered by gluten, leading to intestinal damage. 
• Food Allergies & Intolerances – Reactions to foods like lactose, gluten, or FODMAPs causing digestive distress. 

• Irritable Bowel Syndrome (IBS) – Chronic abdominal pain, bloating, diarrhea, and/or constipation. 
• Inflammatory Bowel Disease (IBD) – Includes Crohn’s Disease and Ulcerative Colitis, causing inflammation in the intestines. 
• Diverticulosis & Diverticulitis – Small pouches in the colon (diverticula) that can become inflamed or infected. 
• Colon Polyps & Colon Cancer – Abnormal growths in the colon, some of which may develop into cancer. 
• Constipation & Diarrhea – Chronic or severe cases requiring medical intervention. 
• Gastrointestinal (GI) Strictures – Narrowing of the intestines or esophagus, leading to obstruction or swallowing difficulties. 

• Chronic Liver Disease & Cirrhosis – Progressive liver damage affecting function. 
• Hepatitis B & Hepatitis C – Viral infections leading to liver inflammation and scarring. 
• Nonalcoholic Fatty Liver Disease (NAFLD) – Fat accumulation in the liver, increasing the risk of cirrhosis. 
• Gallbladder Disease & Biliary Disorders – Includes gallstones, bile duct obstructions, and biliary disease. 
• Pancreatitis (Acute & Chronic) – Inflammation of the pancreas causing severe abdominal pain and digestive issues. 
• Pancreatic Cysts & Cancer – Cysts may be benign or precancerous, requiring monitoring or intervention. 
• Gastrointestinal Cancer – Includes cancers of the stomach, esophagus, pancreas, liver, and intestines. 

• Hemorrhoids – Swollen veins in the rectum causing pain, itching, and bleeding. 
• Abdominal Pain – Unexplained or chronic pain requiring evaluation. 

• Colonoscopy – Examines the colon for polyps, cancer, and inflammatory diseases. 
• Flexible Sigmoidoscopy – A less invasive colonoscopy alternative focusing on the lower colon. 
• Upper Endoscopy (EGD) – Evaluates the esophagus, stomach, and upper small intestine for ulcers, reflux, and other conditions. 
• Endoscopic Retrograde Cholangiopancreatography (ERCP) – Used to diagnose and treat bile duct and pancreatic disorders. 
• Endoscopic Ultrasound (EUS) – Combines endoscopy and ultrasound to assess GI tumors, pancreas, and bile ducts. 
• Video Capsule Endoscopy (VCE) – A small, swallowable camera provides images of the small intestine to detect bleeding or inflammation. 

• Infusion Therapy for Inflammatory Bowel Disease (IBD) – IV biologic therapy for Crohn’s disease and ulcerative colitis. 
• Esophageal Function & pH Testing – Measures acid reflux severity and esophageal motility. 
• FibroScan – A non-invasive test to assess liver fibrosis and fatty liver disease. 

Dietitian Services – Personalized nutrition plans for IBS, IBD, food intolerances, and weight management. 

• Aetna Select
• Open Access Selects
• Elect Choice
• Aetna Open Access Elect Choice
• Aetna Choice POS II
• Managed Choice
• Open Choice PPO
• Aetna Medicare Advantage Plans

CLS Health does not accept:

• Aetna CVS Marketplace Plans

* Some providers may not accept this insurance, please call to confirm

• Superior Ambetter Core (Complete, Clear, Focused, Standard Silver and Gold)
• Superior Ambetter Value (Clear Value Silver, Focused Value Silver, CMS Standard Silver & Gold Value, Everyday Value Gold)
• Superior Ambetter Virtual (Ambetter Virtual Access Silver, CMS Standard Virtual Access Basic Silver, Ambetter Virtual Access Gold)
• Superior Health Plan CHIP*
• Superior Health Plan MAPD (Medicare Advantage Prescription Drug)
• Superior Health Plan Medicare
• Superior Health Plan MMP Medicaid*
• Superior Health Plan MMP Medicare
• Superior Health Plan STAR*
• Superior Health Plan STAR Kids*
• Superior Health Plan STAR+PLUS*

CLS Health participates in most Blue Cross Blue Shield plans including:

• Blue Choice PPO
• Blue Essentials
• Blue Essentials Access
• HealthSelect
• HealthSelect of Texas In Area
• Consumer Directed HealthSelect in Area
• HealthSelect of Texas Out of State
• Consumer Directed Health Select Out of State
• HealthSelect Secondary 65+
• Medicare Advantage HMO
• Medicare Advantage PPO
• Medicare Advantage Value HMO
• POS
• Traditional/Par Plan
• TRS-Active Care
• TRS-Care Standard
• BCBS MyBlue Health (Marketplace)

*Some providers may not accept Community Health Choice, please call to confirm

• MarketplacePremier
• Medicaid*CHIPCHIP PerinateSTAR
• Medicare AdvantageDual-Special Needs Plan (D-SNP)

CLS Health accepts most Cigna plans, including:

• Cigna HMO
• Cigna Local Plus
• Cigna Open Access Plus
• Cigna PPO

• ChoiceCare PPO
• EPO
• HMO
• HMO Premier
• Medicare Advantage Plans
• HumanaChoice - Medicare Advantage PPO plan
• Humana Gold Choice - Medicare Advantage Private Fee-for-Service (PFFS) plan
• Human Gold Plus - Medicare Advantage HMO & Special Needs Plan
• Military (TRICARE South Region Military Health Plan)
• POS - including Choice POS, National POS Open Access/Plus and Preferred POS Open Access.
• PPO

*Some providers may not accept United Healthcare, please call to confirm

• Commercial, HMO, POS, EPO and PPO Plans (Charter, Choice,Core, Doctors Plan, Freedon, Heritage, Navigate, Nexus ACO, Options PPO, Passport Connect, Select)
• Indemnity
• Medicare Advantage (AARP, Care Improvement Plus, C-SNP, D-SNP, I-SNP, Erickson Advantage, ERS Medicare Advantage, TRS-Care Medicare Advantage, UnitedHealthcare Chronic Complete, UnitedHealthcare Connected (Medicare-Medicaid Plan), UnitedHealthcare Dual Complete, UnitedHealthcare Group Medicare Advantage PPO, United Healthcare Medicare Complete)
• Community Plans* (CHIP, CHIP Perinate, Star, Star Kids, Star Plus, MMP)
• Wellmed (Wellmed Dual SNP Focus, Wellmed Medicare Advantage Focus)

*Some providers may not accept Wellpoint, please call to confirm

• Medicaid (All Texas Plans Including the Below)*
• CHIP
• CHIP Perinate
• STAR
• STAR+PLUS
• STAR Kids
• Medicare Advantage
• C-SNP
• D-SNP
• I-SNP
• Medicare Advantage HMO
• Medicare-Medicaid (MMP)
• Medicare-Medicaid Program (MMP)
• STAR+PLUS MMP

*Some providers may not accept insurance, please call to confirm

PPO Networks

• Beechstreet PPO
• Carnival Cruise Lines PPO
• Envolve Benefit Options Vision-PPO, HMO
• First Health
• Curative/First Health
• Galaxy Health Network
• HealthSmart Preferred Care
• Accel
• Healthsmart Payors Organization
• Multiplan PPO
• Tricare (Humana) PPO/Prime

Employer-Specific Plans

• Brazoria County Employees – Aetna TPA Brazoria County Employees

Workers’ Compensation Plans

• Workers’ Comp
• Auto & Workers’ Comp

Medicare and Medicare Advantage

• Medicare Traditional
• Medicare Advantage
• Memorial Hermann Health Solutions Commercial and Medicare
• Molina Medicare Complete Care HMO SNP
• Medicare-Medicaid Program (MMP)
• STAR+PLUS MMP
• Alignment Health Plan
• AllyAlign Health
• American Health Plans
• Florida Complete Care
• Gold Kidney Health Plan
• Imperial Health
• Independent Health
• Kaiser Foundation Health Plan of Washington
• Kaiser Foundation Health Plan of Colorado
• Mass Advantage
• Presbyterian Health Plan
• PriorityHealth
• Provider Partners
• SCAN
• UCare
• Vantage Health Plan
• Verda Healthcare
• Zing Health

Medicaid and CHIP Programs

• Molina Healthcare* (Marketplace, Medicaid, CHIP, CHIP Perinate, STAR, STAR Kids, STAR+PLUS)
• Texas Children's Health Plans*
• TMHP (Traditional Medicaid) Traditional Medicaid

Specialty Plans

• VA Community Cares Network CCN

You should see a gastroenterologist if you experience: 

1. Frequent heartburn or acid reflux (GERD) 
2. Persistent abdominal pain, bloating, or cramping 
3. Chronic diarrhea, constipation, or blood in stool 
4. Unexplained weight loss or difficulty swallowing 
5. A family history of colon cancer or polyps 

If you have ongoing digestive symptoms that affect your daily life, a gastroenterologist can help diagnose and treat the underlying issue. 

In most cases, you can visit a gastroenterologist directly, but some insurance plans require a referral from a primary care physician. Check with your insurance provider to confirm whether a referral is necessary. 

A gastroenterologist is the best doctor for stomach and digestive system disorders. They specialize in treating conditions such as acid reflux, ulcers, irritable bowel syndrome (IBS), and inflammatory bowel disease (IBD). 

The most common GI condition is gastroesophageal reflux disease (GERD), which causes acid reflux, heartburn, and potential esophageal damage. Other common GI diseases include irritable bowel syndrome (IBS), peptic ulcers, and inflammatory bowel disease (IBD). 

Seek medical attention if you experience: 

• Severe or persistent abdominal pain 
• Unexplained weight loss 
• Bloody stools or black, tarry stools 
• Difficulty swallowing or persistent nausea 
• Frequent vomiting or signs of dehydration 

These could indicate a serious digestive disorder requiring immediate evaluation. 

IBS (Irritable Bowel Syndrome) and IBD (Inflammatory Bowel Disease) are two conditions with similar-sounding names but important differences:

IBS (Irritable Bowel Syndrome) is a functional disorder affecting how your intestines work. It causes symptoms like abdominal pain, bloating, and changes in bowel habits (diarrhea, constipation, or both), but doesn't damage the intestines or increase cancer risk. IBS is diagnosed based on symptoms and by ruling out other conditions. Treatment typically includes dietary changes, stress management, and medications that target specific symptoms.

IBD (Inflammatory Bowel Disease) includes Crohn's disease and ulcerative colitis. These are inflammatory conditions that cause actual damage to the digestive tract tissues. IBD is diagnosed through procedures like colonoscopy, blood tests, and imaging. It often requires more intensive treatments such as anti-inflammatory medications, immunosuppressants, or biologics. If left untreated, IBD can lead to serious complications and may increase colorectal cancer risk.

Regular colonoscopy screenings are vital for the early detection and prevention of colorectal cancer. For individuals at average risk, it's recommended to begin screenings at age 45 and continue every 10 years until age 75. Beyond 75, the necessity and frequency of screenings should be personalized based on overall health and prior screening outcomes. 

Those with higher risk factors—such as a family history of colorectal cancer, previous polyps, or certain genetic conditions—may need to start screenings earlier and undergo them more frequently. Consult with your healthcare provider to determine a screening schedule tailored to your specific risk profile. 

While colonoscopies are the gold standard for colorectal cancer screening due to their ability to detect and remove polyps simultaneously, alternative non-invasive tests like stool-based screenings are available. However, positive results from these tests often necessitate a follow-up colonoscopy. Discuss with your healthcare provider to choose the most appropriate screening method for you. 

Common trigger foods to avoid include:

• Acidic foods (tomatoes, citrus fruits, and juices)
• Spicy foods
• Fatty or fried foods
• Chocolate
• Caffeine (coffee, tea, soda)
• Carbonated beverages
• Alcohol
• Mint (peppermint, spearmint)
• Onions and garlic
• Large or late meals

Everyone's triggers can be different. We recommend keeping a food diary to identify your specific triggers and working with our gastroenterologists to develop a personalized diet plan that minimizes reflux while maintaining good nutrition.

• Unexplained weight loss 
• Changes in bowel habits (diarrhea/constipation) 
• Blood in stool or black stools 
• Persistent abdominal pain or cramping 
• Fatigue and weakness 

Early detection through colonoscopy significantly improves treatment success rates. 

Bloating is often caused by gas buildup, food intolerances, or digestive disorders like IBS or GERD. To reduce bloating: 

• Avoid high-gas foods (beans, carbonated drinks, cruciferous vegetables) 
• Eat smaller, slower meals 
• Stay hydrated & exercise regularly 
• Identify food triggers (dairy, gluten, artificial sweeteners) 

If bloating is persistent or painful, a gastroenterologist can help determine the cause.