GI Doctor vs. Primary Care Doctor: When Katy Patients Need a Specialist

What is the difference between a GI doctor and a primary care doctor?

Dr. Khan, a gastroenterologist in Katy, notes that a primary care doctor treats the whole person, manages many conditions and is the first stop for most new symptoms. A GI doctor, or gastroenterologist, is a physician who completed internal medicine training plus several more years of specialized training in the digestive system: the esophagus, stomach, intestines, colon, liver, pancreas and gallbladder. Gastroenterologists also perform procedures such as colonoscopy and upper endoscopy, which primary care doctors do not.

Learn more about what a digestive disease specialist treats.

Which digestive problems can my primary care doctor handle first?

Your primary care doctor can usually handle short-term or mild digestive problems first, such as occasional heartburn, a stomach virus, mild constipation or diarrhea that improves within a few days, mild bloating linked to diet, and hemorrhoid flares without heavy bleeding. They can also order basic blood tests and stool tests and start first-line treatment. If symptoms persist or warning signs appear, they refer you to a gastroenterologist.

When should I see a gastroenterologist instead of my primary care doctor?

See a gastroenterologist when digestive symptoms last more than a few weeks, keep coming back, or do not improve with first-line treatment, or when you have warning signs such as rectal bleeding, black stools, trouble swallowing, unexplained weight loss, iron-deficiency anemia or persistent vomiting. You should also see a GI doctor for colorectal cancer screening starting at age 45, abnormal liver tests, a positive stool-based screening test, or a family history of colon cancer.

• Heartburn more than twice a week, or needing acid reducers for more than two weeks
• Abdominal pain, bloating, diarrhea or constipation lasting more than a few weeks
• Blood in the stool, black stools or rectal bleeding
• Difficulty swallowing or food getting stuck
• Unexplained weight loss or iron-deficiency anemia
• Abnormal liver blood tests or fatty liver on imaging
• Colorectal cancer screening due, or a positive Cologuard or FIT test

What conditions usually need ongoing GI care?

Conditions that usually need ongoing care from a gastroenterologist include inflammatory bowel disease (Crohn’s disease and ulcerative colitis), chronic GERD and Barrett’s esophagus, celiac disease, chronic liver disease such as fatty liver disease and hepatitis, chronic pancreatitis, recurring colon polyps, and difficult cases of IBS, chronic constipation or chronic diarrhea. These conditions benefit from specialized testing, procedures and long-term monitoring.

What does a gastroenterologist do at the first visit?

At the first visit, a gastroenterologist reviews your symptoms, medical and family history, medicines and earlier test results, and examines you. Many visits end with a plan that starts with blood or stool tests, imaging, a medicine change, or a procedure such as a colonoscopy or upper endoscopy, which are scheduled through the practice with preparation instructions and insurance checks done beforehand.

• Photo ID, insurance card and any referral your plan requires
• A list of medicines, vitamins and supplements
• Reports from earlier colonoscopies, endoscopies, imaging or lab work
• Notes on when symptoms started and what makes them better or worse
• Family history of colon cancer, polyps, IBD or liver disease

Meet Dr. Muhammad Ali Khan, MD, FACP, FASGE, a board-certified gastroenterologist and hepatologist and former Associate Professor of Gastroenterology at The University of Texas MD Anderson Cancer Center.

How do my primary care doctor and gastroenterologist work together?

Your primary care doctor and gastroenterologist share information so your care stays coordinated. The primary care doctor often sends a referral with your history and test results, the gastroenterologist evaluates and treats the digestive problem and sends back findings and recommendations, and the primary care doctor continues managing your overall health, medicines and other conditions. You can ask either office to share records with the other.

Do I need a referral to see a gastroenterologist?

Whether you need a referral depends on your insurance plan. Many PPO plans let you book a gastroenterologist directly, while many HMO and managed-care plans require a referral from your primary care doctor before they will cover the visit. Call the number on your insurance card to confirm. United Gastroenterology Associates accepts most major insurance plans and offers self-pay options.

Key takeaways

• A GI doctor is a gastroenterologist with extra years of training in the digestive system, liver and pancreas.
• Primary care is a good first stop for new or mild digestive symptoms.
• See a gastroenterologist for symptoms lasting weeks, warning signs, abnormal liver tests or colorectal cancer screening from age 45.
• Gastroenterologists perform procedures such as colonoscopy and upper endoscopy.
• Referral rules depend on your insurance plan; both doctors work best as a team.

Frequently asked questions

Sources

1. American College of Gastroenterology — Patient resources
2. NIDDK — Digestive diseases
3. MedlinePlus — Digestive diseases
4. USPSTF — Colorectal cancer screening

Visit our Katy office

Dr. Muhammad Ali Khan sees patients at the United Gastroenterology Associates Katy office, 23920 Katy Freeway, Suite 555, next to Memorial Hermann Katy Hospital. The office is open Monday through Friday, 8:30 AM to 5:00 PM, closed for lunch from 12:00 to 1:30 PM. Call (346) 340-4414.

If you have severe pain, vomit blood, pass black stools or have chest pain, call 911 or go to the nearest emergency room.