How to File Insurance Complaint in Maryland
Maryland's Insurance Administration uses the ICARE complaint system and has a consumer protection unit. Learn how to file at insurance.maryland.gov and request external review.
Maryland has a dedicated insurance regulatory agency with strong consumer protections and a streamlined complaint system. The Maryland Insurance Administration (MIA) handles health insurance complaints through its ICARE system, protects Maryland policyholders, and administers the state's External Independent Review: Complete Guide" class="auto-link">external review program.
About MIA: Maryland Insurance Administration
Website: insurance.maryland.gov Consumer Hotline: 410-468-2000 Toll-Free: 1-800-492-6116 Hours: Monday–Friday, 8 a.m.–5 p.m. ET
MIA is Maryland's independent insurance regulatory agency. It licenses insurance companies, approves rates and policy forms, and investigates consumer complaints through its Life and Health Administration. The agency has a reputation for strong consumer advocacy.
What MIA Regulates
MIA has jurisdiction over fully-insured health insurance plans in Maryland, including:
- Individual health plans (on and off Maryland Health Connection, the state marketplace)
- Small group employer plans
- Fully-insured large group plans
- HMO plans licensed in Maryland
Self-funded ERISA plans are governed by federal ERISA and fall outside MIA's jurisdiction. Large employers that self-insure their health benefits are not subject to Maryland insurance regulation. Your Summary Plan Description or HR department can clarify your plan type.
The ICARE Complaint System
Maryland uses the ICARE (Insurance Complaints and Requests for External Review) system as its central complaint and external review portal. ICARE allows consumers to:
- Submit health insurance complaints online
- Request external independent review
- Track the status of pending complaints
- Upload supporting documents electronically
ICARE Online Portal: insurance.maryland.gov/consumer/pages/icare.aspx
This integrated system makes it easier to manage both a complaint and an external review request through a single interface.
How to File a Complaint with MIA
Option 1: ICARE Online (Recommended) Use the ICARE portal at insurance.maryland.gov to file your complaint. You'll need:
- Policy number and insurer name
- Description of the dispute and desired outcome
- Supporting documents: denial letter, EOB, physician letters, medical records
Option 2: Phone Call 1-800-492-6116 (toll-free) or 410-468-2000 to speak with a consumer protection specialist.
Option 3: Mail Maryland Insurance Administration 200 St. Paul Place, Suite 2700 Baltimore, MD 21202
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Consumer Protection Unit
MIA's Consumer Protection Unit is the core team handling health insurance disputes. Once your complaint is received:
- A specialist reviews your documentation
- Your insurer receives formal notice and must provide a written response (typically within 15–20 business days)
- MIA evaluates the response against Maryland insurance law
- You receive a written determination
If MIA finds a violation, it can require the insurer to reverse the denial, pay the claim, or take corrective action. MIA has authority to impose fines and pursue enforcement action for systemic or repeated violations.
External Review in Maryland
Maryland provides robust external review rights through the ICARE system. After completing your insurer's internal appeal process, you may request an independent external review for:
- Medical necessity denials
- Experimental or investigational treatment denials
- Adverse determinations eligible under ACA standards
Key details:
- Accessed through: ICARE portal
- Deadline: File within 4 months of the final adverse determination
- Cost: Free to you (insurers pay the IRO fees)
- Timeline: Standard reviews within 45 days; expedited reviews within 72 hours
- Binding: The Independent Review Organization's decision is binding on the insurer
The ICARE system streamlines the external review request process — you can initiate it through the same portal where you file your complaint.
Maryland Health Connection
If you purchased your health plan through Maryland Health Connection (the state marketplace), you can contact the marketplace at marylandhealthconnection.gov or 1-855-642-8572 for enrollment-related issues. For claim and coverage disputes, MIA is the appropriate agency.
Maryland-Specific Consumer Protections
Maryland has several notable health insurance protections:
- Mental health parity: MIA enforces strong parity standards, including an annual compliance audit requirement for insurers
- Emergency services: Maryland prohibits balance billing for emergency services at out-of-network hospitals
- Autism coverage: Maryland requires health insurers to cover applied behavior analysis and other autism therapies
- Preventive care: Maryland law mandates coverage of certain preventive services at no cost sharing
- Infertility: Maryland requires coverage for infertility diagnosis and treatment for eligible plans
Violations of these specific Maryland mandates are strong grounds for an MIA complaint.
MIA Annual Complaint Data
MIA publishes annual complaint data by insurer, allowing consumers to see which insurers have the highest complaint rates. This data can be useful if you're shopping for coverage or want to understand whether your denial is part of a pattern. The complaint data is available at insurance.maryland.gov.
Tips for Filing an Effective Complaint
- Use ICARE for one-stop service: The ICARE system allows you to file a complaint and initiate external review in the same place, saving time.
- Document your timeline: Include dates for the original service, denial, appeal, and final denial.
- Include a physician letter: For medical necessity denials, a letter from your treating physician is the most persuasive evidence.
- Reference Maryland law: If your insurer violated a specific Maryland mandate — for example, autism coverage or emergency care billing — reference it explicitly.
- File complaint and internal appeal simultaneously: MIA's process is independent of your insurer's internal appeal.
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