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Casper, WYO

A private guide. Not a government website: not connected with or endorsed by the State of Wyoming, the U.S. government or the federal Medicare program.

CASPER, WYOMING

Medicare in Casper and Natrona County

A plain guide for older adults in Casper, Mills, Evansville, Bar Nunn and the rest of Natrona County: what Medigap is, how Medicare Advantage differs, and where in town to sit down with someone who will walk you through it.

Help in person, in Casper

Wyoming's Medicare counseling program, WSHIIP, keeps a Casper office at 951 Werner Court, Suite 295. Counselors there answer Medicare questions one to one and do not sell plans. Call 1-877-634-1006, or the statewide line 1-800-856-4398.[6]

Social Security handles signing up for Part A and Part B, and it has a field office in Casper. Use Social Security's office locator with your ZIP code for the current address and hours before you go.[7]

Plans offered in Natrona County

For 2027, CMS lists 3 Medicare Advantage plans in Natrona County, from one insurer; 2 of them include drug coverage. None is a special plan for people with both Medicare and Medicaid. Wyoming also has 9 stand-alone drug plans (Part D), available in every county. Source: the CMS CY2027 Landscape file, data updated November 1, 2026, read November 9, 2026.[5]

How Medigap works when you travel for care

Outside the Casper hospitals, doctor networks thin out fast, and plenty of people here see specialists in Denver, Billings or Salt Lake City. A Medigap policy works with any provider in the country that takes Medicare.[4]

Timing matters. You get a six-month Medigap open enrollment period starting the month you are 65 or older and enrolled in Part B. During it, an insurer must sell you any Medigap policy it offers, at the same price as someone in good health.[1]

Medicare Advantage is the other route: a private plan that replaces Original Medicare, usually with a network, often with drug cover built in. If you choose one, check that your Casper doctors and your pharmacy are in it.[4]

Dates to put on the fridge

Bring these to WSHIIP

Your Medicare card, a list of every medicine with its dose, and the names of your doctors.

Your situation, answered

Questions?

Email hello@palmelle.com with a question about how Medicare works.

More from Palmelle on paying for care

Palmelle is our guide to care for older adults and their families.

Published by July Blue Sky LLC, a planned insurance agency that is not yet licensed. Nothing on this page enrolls anyone, and this page does not recommend a plan. We do not offer every plan in your area.

Reviewed November 9, 2026.

Not connected with or endorsed by the U.S. government or the federal Medicare program.

Sources

  1. Medicare.gov: Medigap, get ready to buy
  2. Medicare.gov: Joining a health or drug plan
  3. Medicare.gov: Special Enrollment Periods
  4. Medicare.gov: Understanding Medicare Advantage plans
  5. CMS: CY2027 Landscape file (202611, data updated November 1, 2026), Downloads on Prescription Drug Coverage
  6. Wyoming Senior Citizens, Inc.: WSHIIP offices
  7. Social Security Administration: Social Security Office Locator
  8. Wyoming Department of Insurance