Condition Guide · Inflammatory Bowel Disease

Crohn’s Disease

A plain-language guide to what Crohn’s disease is, the infusion medications used to treat it, and what treatment actually looks like. Written for patients and caregivers in Maryland.

The short version

Crohn’s disease is a chronic inflammatory bowel disease that can affect any part of the digestive tract, most often where the small intestine meets the colon. Roughly 1.3 million U.S. adults have been diagnosed with it. When diet changes, steroids, and oral medications aren’t enough, many people move on to biologic therapy, and several of those biologics are given by IV infusion. Springside administers Crohn’s infusions in Columbia, Bowie, and Frederick, Maryland. Your gastroenterologist keeps managing your care. We handle the infusion, the insurance authorization, and the paperwork.

What is Crohn’s disease?

Crohn’s disease is a chronic (long-term) inflammatory bowel disease, or IBD. In Crohn’s, the immune system triggers inflammation in the digestive tract that doesn’t switch off the way normal inflammation does.

It can affect any part of the GI tract, from the mouth to the anus, though it most commonly involves the end of the small intestine (the terminal ileum) and the beginning of the colon. Ulcerative colitis inflames only the innermost lining of the colon. Crohn’s inflammation can extend through the entire thickness of the bowel wall, which is why it can lead to complications like strictures and fistulas.

Crohn’s typically moves in cycles: periods of active symptoms, called flares, followed by periods of remission that can last weeks, months, or years. The goal of treatment is to bring a flare under control, then keep you in remission as long as possible.

1.3 million
U.S. adults have been diagnosed with Crohn’s disease, about 0.5% of adults. Roughly 4.1 million adults (1.6%) have some form of inflammatory bowel disease.Source: CDC / National Center for Health Statistics, National Health Interview Survey, 2023–2024 data, published August 2026. Figures cover adults 18 and older and are based on self-reported physician diagnosis.

Where Crohn’s shows up

Crohn’s is often described by the part of the digestive tract it affects:

  • Ileocolitis. The end of the small intestine and the colon. This is the most common form.
  • Ileitis. The end of the small intestine only.
  • Gastroduodenal Crohn’s. The stomach and the first part of the small intestine.
  • Jejunoileitis. Patchy inflammation in the upper half of the small intestine.
  • Crohn’s colitis. The colon only.

Common symptoms

Symptoms vary a great deal from person to person, and they change depending on where the inflammation is and how active it is. The most common include:

  • Ongoing diarrhea
  • Abdominal pain and cramping
  • Blood in the stool
  • Fatigue, often severe
  • Fever
  • Reduced appetite and unintended weight loss
  • Mouth sores
  • Pain or drainage near the anus, from a fistula

Symptoms outside the digestive tract

Because Crohn’s is an immune-driven condition, it can cause problems well beyond the gut, including joint pain, skin rashes, eye irritation, inflammation of the liver or bile ducts, kidney stones, bone loss, and anemia. In children, Crohn’s can also delay growth and development.

This page is educational, not medical advice. Only your gastroenterologist can diagnose Crohn’s disease or decide which treatment is right for you. If you’re having severe abdominal pain, persistent bleeding, or a high fever, contact your doctor or seek care right away.

How Crohn’s disease is treated

Treatment usually works in two stages. Induction brings an active flare under control. Maintenance keeps you in remission afterward. Which medication you’re on, and how often you take it, depends on the stage you’re in.

Milder disease is often managed with oral medications. During an acute flare, a gastroenterologist may use corticosteroids, powerful and fast-acting anti-inflammatory drugs that are sometimes given intravenously as methylprednisolone (Solu-Medrol). Steroids work quickly, but they aren’t meant for long-term use, so doctors generally taper the dose and the duration as soon as the flare settles.

What “biologic therapy” actually means

When conventional treatment isn’t enough, the next step is usually a biologic. The Crohn’s & Colitis Foundation defines biologics simply: “antibodies, created in the laboratory, that target specific proteins that cause inflammation.”

A steroid suppresses inflammation broadly, across your whole body. A biologic is engineered to block one specific messenger in the inflammatory chain, which is how it can control the disease without many of the body-wide effects of long-term steroid use.

The biologics used in Crohn’s fall into three groups, and the group largely determines how the medication is given:

Anti-TNF agents

Block tumor necrosis factor, a key inflammatory signal. Given as IV infusions or injections.

Infliximab (Remicade & biosimilars), certolizumab (Cimzia)

Integrin receptor antagonists

Stop inflammatory white blood cells from entering gut tissue. Given by IV infusion, sometimes followed by injections.

Vedolizumab (Entyvio), natalizumab (Tysabri, Tyruko)

Interleukin antagonists

Block interleukin proteins that drive inflammation. Usually IV infusion to start, then injections at home.

Ustekinumab (Stelara), risankizumab (Skyrizi), mirikizumab (Omvoh)

Not every Crohn’s medication is an infusion. Certolizumab (Cimzia) is FDA-approved for Crohn’s but is given only as a subcutaneous injection, never by IV. And several biologics that start with IV infusions, including Stelara, Skyrizi, and Omvoh, switch to at-home injections for maintenance.

Crohn’s infusion medications we administer

These are the FDA-approved Crohn’s medications given by IV infusion that Springside administers. Each links to its medication page, where you’ll find the referral form your gastroenterologist needs.

Infusion times below are the times specified in each medication’s FDA prescribing information. Your total appointment will be longer, because check-in, vital signs, IV placement, and post-infusion observation all add time.

About Tysabri and its biosimilar Tyruko. Both are FDA-approved for Crohn’s disease in adults whose disease hasn’t responded to conventional therapy and anti-TNF medications, and neither is used in combination with those drugs. Both carry a boxed warning for progressive multifocal leukoencephalopathy (PML) and are available only through the TOUCH® Prescribing Program, which requires the prescriber, the patient, and the infusion center to each be certified.

Steroids during a flare

We also administer IV methylprednisolone (Solu-Medrol), a corticosteroid your gastroenterologist may order to bring an active flare under control. It’s a short-term treatment used alongside the maintenance medications above, not instead of them. Dosing is individualized to how severe the flare is and how you respond.

Iron infusions and anemia in Crohn’s

Anemia is the most common complication of inflammatory bowel disease outside the digestive tract. It affects roughly 16% of IBD patients seen in outpatient settings and about 68% of those admitted to hospital. Iron deficiency is present in around 45% of people with IBD and accounts for more than half of all anemia cases in this group.

Why iron pills often don’t fix it

If you’ve taken oral iron and your levels barely moved, that’s a well-documented pattern in Crohn’s, and there are four reasons for it:

  • Absorption. Iron is absorbed in the small intestine, often the exact stretch Crohn’s inflames. If part of your terminal ileum is inflamed or has been surgically removed, absorption drops further.
  • Your body actively blocks it. Chronic inflammation raises a hormone called hepcidin, which shuts down intestinal iron absorption, so the iron passes through even when your levels are low.
  • Side effects. Constipation, nausea, and abdominal pain lead up to one in five patients to stop taking oral iron altogether.
  • It may make things worse. Iron that isn’t absorbed sits against already-inflamed intestinal lining and can increase inflammation.

This is why your gastroenterologist may recommend intravenous iron instead, particularly if your IBD is active, your anemia is moderate to severe, or oral iron hasn’t worked or wasn’t tolerated.

Monoferric (ferric derisomaltose)

For most adults weighing 50 kg or more, a full iron replacement course is a single 1,000 mg dose, given in one visit rather than a series. The infusion itself runs at least 20 minutes, followed by at least 30 minutes of monitoring, so plan on about an hour at the center.

Your gastroenterologist may order a different IV iron formulation depending on your history and your insurance coverage. We administer several.

What to expect at your infusion

If you’ve never had an infusion, or you’ve only had them in a hospital, here’s the shape of a typical visit.

  1. Check-in and vital signs. Your care team reviews your medication guide with you and takes your vitals before anything is started.
  2. Dose confirmation. Some Crohn’s medications, infliximab in particular, are dosed by body weight, so you’ll be weighed at the visit.
  3. Premedication, if ordered. For some medications your doctor may order an antihistamine, acetaminophen, or a steroid beforehand to reduce the chance of a reaction. This isn’t required for everyone.
  4. The infusion. An IV is placed and the medication runs. Depending on the drug, that’s anywhere from about 30 minutes to more than two hours.
  5. Monitoring throughout. A nurse monitors you for the length of the infusion, with staff and medication on hand to treat a reaction if one occurs.
  6. Observation afterward. How long depends on the medication. Tysabri requires a full hour of observation after each of your first 12 infusions, and IV iron requires at least 30 minutes. Some medications have no set observation period.
  7. Home. Most patients go back to their normal schedule the same day, as advised by their doctor.
Plan for more than the infusion time. The times listed on this page come from each medication’s FDA label and cover the infusion itself. Check-in, IV placement, and observation are on top of that. When we confirm your appointment, we’ll tell you how long to plan for.

Already getting Crohn’s infusions somewhere else?

You can change where you receive your infusions without changing your gastroenterologist. Your GI doctor continues to manage your Crohn’s disease and writes the order. We administer the medication and report back to them.

Many Maryland insurance plans now prefer, and some require, that non-urgent infusions be given at an ambulatory infusion center rather than a hospital outpatient department, often at meaningfully lower out-of-pocket cost. Coverage rules and prior-authorization requirements vary by plan, so we verify your benefits and handle the authorization before your first visit.

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Crohn’s infusion questions, answered

The questions patients ask us most often about moving their Crohn’s infusion care to Springside.

When is the right time to switch infusion care providers?

TL;DR

Most patients managing Inflammatory Bowel Disease (IBD), such as Crohn’s disease, can safely switch infusion providers once their medication schedule is stable and their gastroenterologist considers treatment well established. Springside Infusion helps patients in Columbia and Frederick, Maryland make this transition without missing a dose.

Most patients do not switch during loading doses or while actively adjusting medications. The best time to explore a new provider is usually once you reach the maintenance phase of your treatment and your schedule becomes predictable. 

Many patients start thinking about switching after saying things like:

  • “I can’t keep using PTO for this.”
  • “Why does every infusion take half my day?”
  • “I’m tired of driving into the hospital every month.”
  • “My appointment was at 2:00... why am I still waiting?”

These frustrations are especially common among working professionals receiving biologic medications like Remicade or Entyvio, Stelara or Skyrizi.

Most successful provider transitions follow this timeline: 

  • 2–5 business days: Insurance verification
  • 3–7 business days: Physician orders and clinical records transfer
  • 1–2 weeks: Scheduling your first appointment

Unlike large hospital outpatient departments, independent outpatient infusion centers are often built around predictable scheduling, private treatment suites, and minimal disruption to your workday.

How Springside Infusion manages the switch:

Springside Infusion works directly with your gastroenterologist, insurance provider, and clinical records team to coordinate your transition between doses, helping patients across Columbia, Frederick, and the greater DC region continue treatment without interruption.

What should I look for when switching infusion care providers?

TL;DR

When Crohn’s patients switch infusion providers, the biggest priorities are flexible scheduling, private treatment space, transparent billing, and a clinic that fits into real life. Springside Infusion was designed around those exact priorities for working professionals across Maryland and the DMV.

Not all infusion centers are built for the same patient experience.

Hospital outpatient departments are often optimized for scale and acute care. Independent outpatient centers are often better suited for long-term biologic treatment for autoimmune and gastrointestinal conditions, especially for patients balancing chronic illness management with work and family responsibilities

Many patients begin their search after saying things like:

  • “I shouldn’t need to take PTO every month.”
  • “I need Wi-Fi and a quiet place to work.”
  • “I’m tired of hospital parking and long waits.”
  • “I want treatment to feel like part of my routine, not a disruption.”

When comparing infusion providers, look for: 

  • Scheduling flexibility: Evening or weekend appointments
  • Private suites: Space to work, take calls, or rest
  • Billing transparency: No surprise hospital facility fees
  • Parking and access: Easy in-and-out visits
  • Technology: Reliable Wi-Fi, desk space, and power access

Many working professionals in Columbia, Frederick, and across the greater Washington, DC region choose outpatient infusion care specifically because it fits better into a normal workweek.

What this looks like at Springside Infusion:

Springside Infusion offers private suites, reliable high-speed Wi-Fi, easy parking, and appointment times designed around working professionals, not hospital shift schedules.

Will my insurance still cover my biologic infusion if I switch providers?

TL;DR

Yes. In most cases, your biologic infusion remains covered when you switch providers, as long as the new center is in-network or approved under your plan. Springside Infusion verifies your benefits before your first appointment so you know exactly what to expect.

Many patients currently receiving infusions through systems like Johns Hopkins Medicine or MedStar Health worry that switching locations means restarting the insurance process.

In most cases, your medication and prescribing physician stay the same. What usually changes is simply where you receive treatment.

Patients often ask:

  • “Will CareFirst still cover this if I leave the hospital?”
  • “Am I going to get hit with surprise bills?”
  • “Do I need a new prior authorization?”

Before switching, your new provider should verify: 

  • Active insurance coverage
  • Medication authorization status
  • Prior authorization transfer (if needed)
  • Estimated out-of-pocket costs

Because hospital outpatient departments often charge additional facility fees, many patients reduce their costs by moving to an independent outpatient infusion center.

How Springside Infusion coordinates your care:

Springside Infusion completes a full benefits investigation before your first visit, helping patients with plans like CareFirst understand their coverage, expected costs, and next steps upfront.

Can I switch infusion centers without changing my gastroenterologist?

TL;DR

Yes. In most cases, you can switch infusion centers without changing your gastroenterologist, your medication, or your treatment plan. Springside Infusion works directly with your existing care team to keep your treatment consistent.

Many patients assume:

  • “If I leave the hospital, am I leaving my doctor too?”
  • “Do I have to start over with a new GI?”

In most cases, the answer is no.

Your gastroenterologist continues to manage:

  • Your IBD or Crohn’s diagnosis and clinical treatment plan
  • Your specific IV biologic medication (such as Stelara, Entyvio, or Remicade)
  • Your inflammatory marker lab work and long-term disease monitoring

The infusion center simply becomes the location where you receive treatment.

Most provider transfers include: 

  • Current infusion orders
  • Recent clinical notes or labs
  • Insurance verification
  • Scheduling your next dose

Your doctor stays the same. Your medication stays the same. Your experience can change significantly.

How Springside Infusion coordinates your care:

Springside Infusion coordinates directly with your gastroenterologist’s office to transfer orders, clinical documentation, and treatment schedules without disrupting your care.

Will switching my Crohn’s infusion care provider delay my next dose?

TL;DR

No. In most cases, switching providers for biologic infusions should not delay your treatment for chronic autoimmune conditions like Crohn’s Disease or IBD if the process starts early enough. Springside Infusion helps patients transition between scheduled doses so treatment stays on track.

Some of the biggest fears our patients have are: 

  • “Am I going to miss my next infusion?”
  • “What if my medication gets delayed?”
  • “Is switching worth risking a flare-up?”

The key is starting early

Most successful transitions include: 

  • 2–5 business days: Insurance verification
  • 3–7 business days: Physician orders and clinical records transfer
  • 1–2 weeks: Appointment scheduling

Patients who begin the process 2–4 weeks before their next infusion usually experience the smoothest transitions.

How Springside Infusion manages the switch:

Springside Infusion begins insurance verification, physician coordination, and scheduling as early as possible to help ensure your next dose stays on schedule.

How do I transfer my biologic infusion orders to a new center?

TL;DR

Moving your infusion treatment to a new center is usually simpler than most patients expect. Springside Infusion manages the paperwork, insurance verification, and physician communication, so most patients only need to choose a location and schedule their first visit.

Most patients hesitate because they think: 

  • “This sounds like a paperwork nightmare.”
  • “Do I have to coordinate between offices myself?”
  • “Who actually moves my records?”

In reality, most of the work happens behind the scenes.

Most transfers include: 

  • Insurance information collection
  • Physician order transfer
  • Clinical record review
  • Medication authorization verification
  • Scheduling your first infusion

For most patients, the only real decision is choosing where they want to receive treatment.

How Springside Infusion manages the switch:

Springside Infusion’s intake team handles physician coordination, insurance verification, and clinical documentation from start to finish, so your only job is choosing your appointment time.

How long does it take to switch infusion providers?

TL;DR

Usually, switching infusion providers takes between one and three weeks, depending on insurance approvals, physician response times, and how soon your next infusion is due. Most patients who start early are able to complete the transition before their next scheduled dose.

Many Patients ask: 

  • “Can I do this before my next dose?”
  • “Will this take a month?”
  • “Is switching going to be a hassle?”

In fact, switching as soon as you complete a dose is the best time to make the switch. Providers like Springside custom order treatments for each patient, and the medication can be in the clinic within a week.

For a patient, switching infusion providers is as easy as scheduling a new appointment.

Typical transfer timeline:

  • Day 1–2: Initial intake and insurance collection
  • Day 2–5: Benefits investigation and prior authorization review
  • Day 3–7: Physician orders and records transfer
  • Week 1–3: Appointment scheduling based on your dosing interval

Starting early usually makes the process much smoother.

How Springside Infusion manages the switch:

Springside Infusion begins insurance approvals, physician coordination, and scheduling as soon as you reach out, helping patients in Columbia, Frederick, and across Maryland stay on treatment.

What are the best outpatient infusion centers in the DMV for working professionals?

TL;DR

Working professionals in Columbia, Frederick, Bethesda, and across the greater Washington, DC region often prioritize outpatient infusion centers that offer flexible scheduling, private suites, easy parking, and a more predictable experience than major hospital systems. Springside Infusion was built around those exact priorities.

The DMV presents unique challenges for infusion patients: 

  • High traffic around major hospital campuses
  • Expensive or time-consuming parking
  • Shared treatment rooms
  • Delays that turn a 2-hour appointment into half a day

While hospitals and hospital networks are sprawling systems that cater to the needs of thousands on a daily basis, infusion clinics in the DMV are specifically designed to meet the unique needs of the capital region's busy professional infusion patients.

When comparing outpatient infusion centers, look for: 

  • Evening or weekend availability
  • Private suites with workspace
  • Reliable Wi-Fi and power access
  • Easy parking and fast check-in
  • Transparent billing without hospital facility fees

For working professionals, convenience often becomes just as important as clinical quality.

What this looks like at Springside Infusion:

Springside Infusion offers private suites in Columbia and Frederick, Maryland, with flexible scheduling, easy parking, and a treatment experience designed specifically for professionals balancing treatment with demanding careers.

Switch to Springside

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