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Michigan medical malpractice insurance: manage notice-of-intent timing

Michigan generally requires written notice of intent at least 182 days before a malpractice action starts; a narrow later-identified-party situation shortens that interval to 91 days. The state court rule also requires medical-malpractice affidavits under the statute. Record the first notice, suit and report dates separately, then apply the policy’s own claim and reporting terms. 1,2

What Is Medical Malpractice?

Medical malpractice insurance can pay defense costs and covered damages when a patient claims a clinician’s care caused harm. If you provide health care, match the quote to your practice, clinicians, specialties and procedures, then check who is insured. Read the national Medical malpractice guide.

Michigan Requirements

RequirementDetails
Notice before suitA person generally may not commence a medical-malpractice action against a health professional or facility until written notice has been given at least 182 days earlier. A conditional 91-day period applies to a later-identified defendant only after specified earlier notices expired and suit began against other defendants. 1

What to Watch for in Michigan

  • Do not treat 182 days as the policy reporting period

    The statutory interval runs from written notice to commencement of an action; it does not state when a policy claim is first made or reported. Send the notice to the carrier promptly and use the contract’s separate notice language. 1

  • The 91-day window is conditional

    The shorter period applies only when the claimant previously notified other involved professionals/facilities, that period expired, suit began, and the additional party could not reasonably have been identified earlier. Do not assume every added defendant receives 91 days. 1

  • Coordinate notice and affidavit records

    Michigan’s court rule requires affidavits under MCL 600.2912d/.2912e in covered cases. Ask claims counsel to preserve the notice, records supplied and affidavit timeline; a procedural filing rule does not decide policy coverage. 2

  • Keep the statutory exceptions attached to the calendar

    The statute contains additional notice and response rules; the affidavit statute allows a good-cause 28-day extension and a 91-day filing allowance when a defendant failed to provide medical records on time. These are litigation rules, not extensions of policy notice deadlines. 1,2

Who Regulates Insurance in Michigan

Michigan Department of Insurance and Financial Services

The Michigan Department of Insurance and Financial Services licenses agents, agencies and companies, supervises insurance business, and helps resolve complaints. You can use its state lookup or complaint service to check a license or raise an insurance issue. 3,4,5

Surplus-lines tax and stamping office

Reported tax rate: 2.5% combined surplus-lines tax and regulatory fee on premium when Michigan is the insured's home state Michigan's Property and Casualty Guaranty Association is funded by insurers authorized to transact in the state; an insurer procured solely under Chapter 19 is expressly not considered authorized for that chapter. The surplus-lines policy must carry a notice that the insurer is not Michigan-licensed and insolvency claim payment may not be guaranteed. 6,7,8

Providers With Documented State Licenses

These providers publish a national listing for Medical malpractice; the state records document licenses for the entities and roles shown below. Some records rely on company-reported information rather than independent regulator verification. A national listing does not confirm the product is available in Michigan. Check the regulator’s license lookup and confirm state availability for your business when requesting a quote.

  • CorgiCorgi Insurance Services, Inc.Insurance producer · checked 2026-09-28Corgi’s company producer-license table lists 50 jurisdictions: 49 states and the District of Columbia, including DC license 3003091619. New Mexico does not appear in the table and is not included here; the omission does not establish that Corgi is unlicensed there. The company-reported table has no stated as-of date and does not establish product availability. 11
  • VouchVouch Specialty Insurance Services, LLCInsurance producer, Surplus-lines broker · checked 2026-09-28Vouch’s licenses page, effective January 16, 2025, lists producer licenses in all 50 states and DC. Its separate surplus-lines table includes Idaho number 870820, while a footnote says Georgia and Idaho do not issue agency-level surplus-lines licenses. Because those statements conflict for Idaho, this record keeps Idaho producer-only and does not treat the table number as established agency surplus-lines authority. The page is company-reported and does not establish product availability. 15

Questions to Ask Before You Buy in Michigan

  1. Who received the written notice, when was it mailed, and when did the insurer receive it?
  2. Does the policy define a claim to include a notice of intent, and what separate reporting deadline applies?
  3. Have counsel and the carrier calendared the complaint and affidavit requirements, including any documented exception?

Medical Malpractice in Michigan: FAQ

What is Michigan’s usual notice-of-intent period? 1

The statute generally requires notice at least 182 days before a medical-malpractice action begins. It shortens to 91 days only under the listed later-identified-party conditions. 1

Does sending a statutory notice automatically trigger insurance? 1

No. The notice statute sets a pre-suit procedure. The policy determines whether that communication meets its claim definition and reporting terms; notify the carrier promptly and confirm in writing. 1

Is an affidavit required with a malpractice complaint? 2

Michigan’s statute and court rule require an affidavit of merit/defense in covered cases, with limited statutory timing allowances. Preserve the notice and medical-record timeline with the claim file. 2

Medical Malpractice in Other States

Other Coverage in Michigan

Sources

  1. Michigan Compiled Laws, Revised Judicature Act §600.2912b. Michigan Legislature; Official compiled Act, Sec. 2912b: 182-day notice; four-condition 91-day exception; mailing and notice requirements; complete through PA 91 of 2026. Accessed 2026-09-28.
  2. Michigan Court Rule 2.112(L). Michigan Supreme Court; Current court rule: affidavits under MCL 600.2912d/e and challenge timing; medical-malpractice actions. Accessed 2026-09-28.
  3. Department of Insurance and Financial Services. Department of Insurance and Financial Services; Official regulator and insurance oversight. Accessed 2026-09-28.
  4. Insurance License Lookup. Department of Insurance and Financial Services; State-designated producer/company search. Accessed 2026-09-28.
  5. File an Insurance Complaint. Department of Insurance and Financial Services; State complaint process and contact. Accessed 2026-09-28.
  6. Surplus Lines Licensee: Filing the Surplus Lines Taxes. Michigan Department of Insurance and Financial Services; DIFS current filing page: Michigan-home-state placements taxed at 2.5% combined tax and regulatory fee; separate fees charged to insured are not included in premium tax base. Accessed 2026-09-28.
  7. Michigan Insurance Code, Chapter 500. Michigan Legislature; MCL 500.7911(1)-(2), 500.7921(b): association membership tied to insurer authorized to transact; insurer procured solely under Chapter 19 is expressly not authorized for guaranty chapter. Accessed 2026-09-28.
  8. Michigan Insurance Code, Chapter 500. Michigan Legislature; MCL 500.1922 requires policy notice that insurer is not Michigan-licensed and insolvency claim payment may not be guaranteed. Accessed 2026-09-28.
  9. Licenses. At-Bay; Current producer introduction and state table; At-Bay Insurance Services LLC; P&C and surplus-lines identifiers. Accessed 2026-09-21.
  10. Licenses and Carriers. Coalition; Licenses and Carriers, re-read 22 September 2026: Insurance Licenses table for Coalition Insurance Solutions, Inc., national producer number 18419475, with producer and surplus-lines numbers for all 50 states and DC including California 0L76155, Georgia 196479, Texas 2199630 and 2205589, Pennsylvania 815731 and 817452, Colorado 539028 and Wisconsin 3000108852. Insurance Carriers table naming, with NAIC numbers, Allianz Underwriters Insurance Company 36420, Arch Specialty Insurance Company 21199, Ascot Specialty Insurance Company 45055, Ascot Insurance Company 23752, Aspen Specialty Insurance Company 10717, Chaucer Insurance Company DAC, Coalition Insurance Company 29530, Fireman's Fund Indemnity Corporation 11380, Fortegra Specialty Insurance Company 16823, Lloyd's of London, MSIG Specialty Insurance USA Inc. 34886, MS Transverse Specialty Insurance Company 41807, Steadfast Insurance Company 26387, Vantage Risk Specialty Insurance Company 16275 and Zurich American Insurance Company 16535. Accessed 2026-09-22.
  11. Insurance Producer Licenses. Corgi Insurance; Current complete Insurance Producer Licenses table for Corgi Insurance Services, Inc.; 50 rows covering 49 states and DC (DC 3003091619); no New Mexico row; no NPN or as-of date shown. Accessed 2026-09-28.
  12. About Hiscox US Insurance. Hiscox; Hiscox Insurance Company Inc. NAIC 10200 as Chicago, IL domiciled insurer admitted or licensed in all 50 states and D.C.; Hiscox Inc. as general agent and Lloyd’s coverholder for Syndicates 33 and 3624; surplus-lines placements through licensed surplus-lines brokers; A.M. Best rating statement. Accessed 2026-09-16.
  13. Licenses. ERGO NEXT Insurance; Current entity-by-state license table reopened 28 September 2026: 50 rows under Next First Insurance Agency, Inc., including Washington, DC; New York rows instead list Next Insurance Services PC-1423070 and AP Intego BR-1198885. Accessed 2026-09-28.
  14. Insurance Licenses by State. TechInsurance; Current state table; identifies TechInsurance as a division of Specialty Program Group LLC d/b/a SPG Insurance Solutions; lists DC 3000041536 and labels Rhode Island “Individual licenses,” without an agency license number. Accessed 2026-09-28.
  15. Licenses. Vouch; Effective 16 January 2025: Vouch Specialty Insurance Services, LLC, NPN 19926463; P&C table (50 states and DC); surplus-lines table includes Idaho 870820; footnote says Georgia and Idaho do not issue agency-level surplus-lines licenses; Idaho retained as producer-only due to conflict. Accessed 2026-09-15.

Updated .

This guide is informational and does not determine whether a policy is available or meets your needs. Editorial policy. To suggest a correction, contact Spot with a supporting source.

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