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Insurance Company of North America Medicare Supplement plans in Washington
Washington-approved premiums, where it sells, and how it compares with the other Washington insurers we track.
- Plans with a WA premium
- A, G, HD-G, N, F
- Plan G premium
- $257 a month
- Plan G price rank in WA
- 4th lowest of 17
- Where it sells
- All 39 counties
- Health questions
- Yes, outside protected periods
- Pre-existing condition wait
- None
- Rates effective
- New on chart
- Insurer phone (from OIC chart)
- 1-800-601-3372
Insurance Company of North America at a glance
Insurance Company of North America has Washington-approved Medicare Supplement premiums for Plan A, Plan G, High-deductible Plan G, Plan N, and Plan F. Its Plan G costs $257 a month, 4th lowest of 17 insurers. That is $24 a month ($288 a year) more than the lowest Plan G we track, for the same standardized benefits. Its Plan N is $66 a month less than its own Plan G; whether that saving beats Plan N's office and ER copays depends on how often you see the doctor (see Plan G vs Plan N). It also offers high-deductible Plan G at $65 a month. You pay the first $2,950 of Medicare-covered costs in 2026 before it pays. The OIC chart shows no pre-existing condition waiting period. It can ask health questions when you apply outside a protected period such as your Medigap open enrollment. Washington's switching rule still lets anyone with Plan B through N move to its Plan B through N with no health questions.
Premiums compared with the rest of Washington
| Plan | Monthly | Yearly | WA lowest | WA median | Where it ranks |
|---|---|---|---|---|---|
| Plan A | $255 | $3,060 | $155 | $240 | 12th of 16; $14 above median |
| Plan G | $257 | $3,084 | $233 | $309 | 4th of 17; $52 below median |
| High-deductible Plan G | $65 | $780 | $48 | $66 | 3rd of 6; $0 below median |
| Plan N | $191 | $2,292 | $189 | $232 | 2nd of 16; $42 below median |
| Plan F | $329 | $3,948 | $257 | $392 | 2nd of 15; $63 below median |
Where its Plan G sits among Washington insurers
Monthly premium, age 65+. OIC chart current as of October 8, 2026.
Where its Plan N sits among Washington insurers
Monthly premium, age 65+. OIC chart current as of October 8, 2026.
Common questions
How much is Insurance Company of North America Medigap Plan G in Washington?
$257 a month for anyone 65 or older, on the OIC chart current as of October 8, 2026. That ranks 4th lowest of the 17 Washington insurers we compare.
Is Insurance Company of North America Medigap available everywhere in Washington?
Yes, in all 39 counties.
Will Insurance Company of North America raise my premium as I get older?
Not because of age. Washington's community rating rule means it charges every 65+ policyholder the same premium for a plan. It can still raise premiums for all policyholders after a rate increase is approved by the state.