Lewistown, Montana: health insurance
Lewistown is in Fergus County. Here is what Lewistown residents should know about coverage.
Coverage in Lewistown
Lewistown has about 6,149 residents (U.S. Census Bureau 2023 estimate).
Plans for Lewistown residents are determined by Fergus County, home to about 11,772 people (2023 estimate). Medicare Advantage plans and marketplace plans are offered by area, so use your ZIP code when you compare, and make sure a plan covers Fergus County before you choose it.
- Turning 65 in Lewistown? Your Initial Enrollment Period runs seven months around your birthday. Montana SHIP (State Health Insurance Assistance Program) offers free counseling at 1-800-551-3191.
- Buying your own plan? Shop through HealthCare.gov (federal Marketplace).
- Medicaid questions? Montana Department of Public Health and Human Services (DPHHS) handles applications.
Montana note: Montana's SHIP counselors work through the state's network of Area Agencies on Aging rather than a single centralized call center, so a caller can often be connected with someone local to their part of the state rather than a statewide hotline.
Medicare plans leaving Fergus County for 2027
Medicare plans are set by county, so this applies to residents of this city. 9 plans are listed in Fergus County for 2026 but not for 2027, covering at least 305 people.
| Plan going away | Company | People enrolled (at least) |
|---|---|---|
| Blue Cross Medicare Advantage Choice Plus (PPO) H0107-005 | Blue Cross (Health Care Service Corp) | 201 |
| Blue Cross Medicare Advantage Classic (PPO) H0107-003 | Blue Cross (Health Care Service Corp) | 40 |
| Blue Cross Medicare Advantage Dental Premier (PPO) H0107-007 | Blue Cross (Health Care Service Corp) | 35 |
| Blue Cross Medicare Advantage Health Choice (PPO) H0107-010 | Blue Cross (Health Care Service Corp) | 29 |
| Blue Cross Medicare Advantage Optimum (PPO) H0107-004 | Blue Cross (Health Care Service Corp) | 10 or fewer |
| Blue Cross Medicare Advantage Protect (PPO) H0107-011 | Blue Cross (Health Care Service Corp) | 10 or fewer |
See all 9 plans leaving Fergus County →
A plan can be listed because it was renumbered or replaced, not only because a company is leaving the county. When the same company keeps other plans there, members are usually moved to a replacement plan. Your plan should send you a notice, and Medicare’s Annual Enrollment Period (October 15 to December 7) is when you can compare and switch. “People enrolled” is the number enrolled in that plan today (CMS hides counts of 10 or fewer). Source: CMS Medicare Advantage and Part D landscape files for 2026 and 2027, and CMS enrollment data from September 2026.
Colleges and universities near Lewistown
Montana public institutions include University of Montana, Montana State University, Montana Technological University. Students and employees at these schools should check their school’s student health or benefits office, because campus plans and employer plans work differently from individual coverage. More about Montana colleges.
Do Lewistown and Fergus County have the same plans?
Plans are offered by service area, and Lewistown falls under Fergus County. A plan that serves Fergus County is generally the one that applies to you.
Do I have to enroll if I call?
No. A call is a conversation about your options.
Lewistown residents: call 855-367-1095
Call Lander LLC to go over your options. There is no cost to call or to speak with an agent, and you are never required to enroll in anything.
Call 855-367-1095 Open 8 AM-10 PM Eastern timeOther major Montana cities
- Billings
- Missoula
- Great Falls
- Bozeman
- Butte
- Helena
- Kalispell
- Belgrade
- Anaconda-Deer Lodge County
- Havre
- Whitefish
- Livingston
Reviewed by Richard Lander, licensed insurance agent (NPN 21255551), Lander LLC. Last updated October 3, 2026. This page is educational and is not a quote, an offer of coverage, or legal or tax advice.