Finding a Doctor Who Prescribes Xifaxan

If you've been dealing with recurring hepatic encephalopathy (HE), irritable bowel syndrome with diarrhea (IBS-D), or travelers' diarrhea, your doctor may have mentioned Xifaxan (Rifaximin). But not every provider is equally familiar with this medication. Whether you need a new prescription or a refill from a new doctor, this guide walks you through exactly how to find the right provider near you in 2026.

What Type of Doctor Prescribes Xifaxan?

Xifaxan is prescribed by several types of healthcare providers, depending on the condition being treated:

• Gastroenterologists — The most common prescribers. They treat IBS-D, small intestinal bacterial overgrowth (SIBO), and other GI conditions where Xifaxan is indicated or used off-label.
• Hepatologists — Liver specialists who prescribe Xifaxan for hepatic encephalopathy, often as a long-term maintenance medication alongside Lactulose.
• Primary care physicians and internists — Many family medicine and internal medicine doctors can prescribe Xifaxan, especially for established patients with a known diagnosis.
• Infectious disease specialists — Occasionally prescribe Xifaxan for travelers' diarrhea, though this is often handled by primary care or travel clinics.

In most cases, you'll want to start with a gastroenterologist or hepatologist if you're seeking a new Xifaxan prescription. These specialists are most experienced with the conditions Xifaxan treats and can navigate prior authorization requirements more efficiently.

How to Find a Provider Near You

1. Use Your Insurance Directory

The fastest way to find an in-network specialist is through your insurance company's online provider directory. Log into your insurance portal, search for "gastroenterology" or "hepatology," and filter by your zip code. This ensures the provider accepts your plan, which matters because Xifaxan often requires prior authorization and insurance coordination.

2. Try Zocdoc or Healthgrades

Platforms like Zocdoc let you search for gastroenterologists and hepatologists by location, insurance accepted, and availability. You can often book an appointment directly online. Look for providers who list IBS, liver disease, or hepatic encephalopathy as specialties — they're more likely to be familiar with Xifaxan.

3. Ask for a Referral

If you already have a primary care doctor, ask for a referral to a GI specialist. Many insurance plans (especially HMOs) require a referral before you can see a specialist. Your primary care doctor can also start the prior authorization process for Xifaxan while you wait for your specialist appointment.

4. Consider Telehealth

Xifaxan is not a controlled substance, which means it can be prescribed via telehealth in most states. If you live in a rural area or can't get a timely in-person appointment, telehealth gastroenterology services may be able to evaluate you and prescribe Xifaxan remotely. Companies like Teladoc, Amwell, and MDLive offer specialist consultations.

What to Expect at Your Appointment

When you see a provider about Xifaxan, be prepared to discuss:

• Your diagnosis and symptoms — Whether it's IBS-D, hepatic encephalopathy, or another condition, bring documentation of your diagnosis if you have it.
• Previous treatments — Have you tried Lactulose, Alosetron (Lotronex), Eluxadoline (Viberzi), or other medications? Many insurers require step therapy, meaning you may need to have tried (and failed) cheaper alternatives before Xifaxan is approved.
• Your medication list — Xifaxan has important drug interactions, particularly with P-glycoprotein inhibitors like Cyclosporine. Bring a complete list of everything you take.
• Insurance information — Xifaxan costs $1,600 to $2,200 per month without insurance, so coverage matters. Your provider's office will likely need to submit a prior authorization.

The appointment itself is typically straightforward. If your provider agrees that Xifaxan is appropriate, they'll send the prescription to your pharmacy — or to a specialty pharmacy if your insurance requires it.

After You Get Your Prescription

Once you have your Xifaxan prescription, the next step is filling it. Here are a few things to keep in mind:

• Check stock before you go. Not every pharmacy keeps Xifaxan on the shelf because of its high cost. Use Medfinder to check pharmacy stock before making a trip.
• Ask about savings programs. The Xifaxan Instant Copay Savings Card can reduce your cost to as little as $0 if you have commercial insurance. Visit xifaxan.copaysavingsprogram.com or call 1-866-XIFAXAN to enroll. See our full guide to Xifaxan savings programs for more options.
• Understand your dosing. Dosing depends on your condition — 550 mg twice daily for hepatic encephalopathy (ongoing), 550 mg three times daily for 14 days for IBS-D, or 200 mg three times daily for 3 days for travelers' diarrhea. Read more in our Xifaxan uses and dosage guide.

Final Thoughts

Finding the right doctor for a Xifaxan prescription doesn't have to be complicated. Start with a gastroenterologist or hepatologist through your insurance directory, come prepared with your medical history and medication list, and don't forget to explore savings options once you have your prescription in hand. If you're having trouble locating a pharmacy that stocks Xifaxan, Medfinder can help you find it near you.