San Juan County, Utah · Indian Health Service and Medicare

Will IHS Pay My Hospital Bill If I Skip Part B in Utah?

Don't count on it. For care outside an IHS or tribal facility, federal rules make the Indian Health Service the payer of last resort. Medicare counts as a resource that comes first, and the rule reaches people who would qualify "if he or she were to apply."

Medicare On Main Data Desk

Published November 2, 2026 · 6 min read · Reviewed by Brian Penner, 22+ years in Medicare

One thing first, because it's the worry many elders raise: signing up for Medicare doesn't take away your IHS or tribal clinic care. The question here is narrower. It's about the bill from a hospital or specialist off the reservation, in Monticello, Blanding, Moab, Cortez or farther away.

The sentence in the regulation that matters

Care outside an IHS or tribal facility is paid through Purchased/Referred Care, or PRC. The older name in the regulation is "contract health services." 42 CFR § 136.61 says IHS won't authorize that payment to the extent that the person:

• "is eligible for alternate resources," or
• "would be eligible for alternate resources if he or she were to apply for them."

The same section names Medicare as one of those resources. Congress wrote the payer-of-last-resort rule into federal law as well. And IHS's own page tells patients they "must apply for and use all alternate resources that are available and accessible," listing "Medicare A and B" first.

So skipping Part B doesn't simply move your outpatient bills over to IHS. You could end up with neither one paying. Exactly how a PRC office treats someone who never enrolled, or who is waiting for an enrollment period, is its decision to make. Ask yours, in writing if you can, before you rely on it.

A referral isn't a promise to pay

This surprises people even without the Medicare question. IHS says it plainly: "PRC is not an entitlement program and an IHS referral does not imply the care will be paid." To get payment, you have to clear four tests each time:

Sources: IHS Purchased/Referred Care; IHS alternate resources; 42 CFR § 136.22.

Which tribes' delivery areas cover which county

This matters if you've moved, or if you're helping a parent who has. IHS's map data lists:

• San Juan County, Utah: Navajo Nation, San Juan Southern Paiute Tribe, Ute Mountain Ute Tribe.
• Montezuma County, Colorado (Cortez): Navajo Nation, Southern Ute Tribe, Ute Mountain Ute Tribe.
• Grand County, Utah (Moab): Ute Indian Tribe of the Uintah and Ouray Reservation.

So a Navajo Nation or Ute Mountain Ute elder who moves from San Juan County to Moab should call the PRC office before assuming PRC follows them there. Part B works the same in all three counties, because it doesn't depend on where you live.

An emergency has its own clock

In an emergency, go to the nearest hospital. Then make the call. The rule gives 72 hours to notify the PRC office after treatment or admission begins, and a family member or the hospital can make the notice. IHS says people 65 and older, and qualifying disabled patients, get 30 days. Don't wait for the 30th day if someone can call sooner.

Medicare doesn't need that call. With Part A and Part B, covered emergency care is covered wherever you are in the U.S. That's the difference when you're hurt on a trip to Salt Lake City or Phoenix, far from your own PRC office.

What skipping costs, in dollars

Part B costs $202.90 a month in 2026 for most people. If you sign up late without a Special Enrollment Period, you pay an extra 10% for each full 12 months you could have had it, and it generally lasts as long as you have Part B:

Calculated from the $202.90 premium and penalty formula at Medicare.gov. Figures rise when the premium does.

IHS doesn't get you out of this. National Indian Health Board training from March 2026 says the Special Enrollment Period is for employer group coverage, "not VA, not IHS." The same training lists "I have IHS – they take care of me" among the reasons people put it off. If you've missed your window, the General Enrollment Period runs January 1 to March 31 each year, and that's coming up.

Two exceptions that change the math

Medicare Savings Programs. These pay the Part B premium for people under certain income and resource limits, and Medicare.gov says you generally won't owe the Part B penalty if you enroll in one. Training from New Mexico's SHIP program notes that Medicare Savings Programs can let you enroll outside the regular periods, and that Indian trust income, individual Indian money accounts and certain reservation property aren't counted for Medicaid eligibility. That training is written for New Mexico, so confirm Utah's rules with the state. Our Utah Medicare Savings Programs post is a starting point.

Part D is different. The same NIHB training says IHS "is always creditable coverage" for prescription drugs, with an attestation. So you can have IHS and no Part D without building that penalty. See how the Part D penalty works.

If you have Part B, which way should you go?

Part B lets you get covered services "without IHS Purchased Referred Care authorization," and your IHS or tribal clinic may be able to bill Medicare for the care you already get there. That money stays in the health program. From there, you've got two paths:

• Original Medicare goes to any provider who takes it, with no network. You'd owe 20% of most Part B services, and PRC may or may not help with that share. Ask your office.
• Medicare Advantage adds a network and an out-of-pocket limit. San Juan County has more plans for 2027 than it did in 2026. Before you join, ask whether your clinic and the hospitals you use are in the network. The New Mexico SHIP training says to check this "including IHS providers."

One side benefit when PRC does pay: Medicare-participating hospitals, including critical access hospitals, have to accept a limited payment rate as payment in full for services IHS or a tribal program has authorized. This applies to authorized care only, so get the authorization.

You don't have to settle all of this alone. See our page on Medicare and Indian Health Service, or how Part B costs differ at southeast Utah clinics. Your clinic's benefits coordinator is also a good first call.

How we know all this: the Medicare On Main Data Desk frames every article with public data. Here that means 42 CFR Part 136, 25 U.S.C. § 1623, IHS's Purchased/Referred Care pages and map data, Medicare.gov and National Indian Health Board training, all read November 2, 2026. We could not find a published statement on how any specific PRC office handles an elder who declined Part B, so the post tells you to ask yours. Medicare On Main is not affiliated with or endorsed by the Indian Health Service, any tribal government or any government agency. This is education, not advice, and not legal advice. Compare plans with a licensed agent or Medicare.gov. We do not offer every plan available in your area.