U.S. Health Insurance Guide for Genetic Counselors
by Zihan Yan • Updated July 2, 2025
Eligibility:
• Age 65+ (primary)
• Disabilities (after 24mo SSDI)
• ALS or End-Stage Renal Disease
🏥Part A: Hospital Insurance (inpatient, hospice)
👨⚕️Part B: Medical Insurance (outpatient, labs, blood draws)
⚠️Part B: NO out-of-pocket maximum!
🏢Part C: Medicare Advantage ("Commercial" - private plans)
💊Part D: Drug Coverage (prescription medications)
Eligibility:
• Low-income individuals/families
• Teens living alone
• Disabled (broader criteria)
• Pregnant women (select states)
🏛️State-run (jointly funded)
🚫No balance billing
📍Varies by state
🔗Links to SSI eligibility
Eligibility:
• Children under 19 (all states)
• Pregnant women (select states)
• Higher income than Medicaid
🏛️Federal & state funded
📈Higher eligibility thresholds
🌟Bridge between Medicaid & private
Eligibility:
• Active duty military
• Military retirees
• Military families/dependents
🛡️Military-run program
🌍Worldwide coverage
📋Multiple plan options
Eligibility:
• Available to anyone
• Through employers or purchase
• Marketplace plans available
🏢Corporate-run
📊Varies widely in coverage
🔄HMO, PPO, marketplace options
Eligibility:
• After leaving job
• Up to 18 months coverage
• More expensive (full premium)
⏱️Temporary solution
🔄Continues employer plan
💰Alternative: Marketplace
HMO vs. PPO - Private Insurance Plan Types
HMO
Health Maintenance Organization
✓ Lower premiums & deductibles
✗ Only covers in-network services
✗ Need referral for specialists
✓ No need to file claims
Best For: LOWEST COST
VS
PPO
Preferred Provider Organization
✗ Higher premiums & deductibles
✓ Can go out of network
✓ No need for referrals
✗ May need to file claims
Best For: MORE CONTROL & FLEXIBILITY
Disability → Health Insurance Pathways
SSDI
Work history required
→
Medicare
After 24 months
SSI
Low income + disabled
→
Medicaid
Usually immediate
🚫 Critical: Genetic Counselor Billing Limitations
Genetic counselors CANNOT bill Medicare directly for genetic counseling appointments
Impact: GCs cannot be reimbursed for Medicare patient visits. Must work under physician supervision or refer to physician for billable services.
Genetic counselors CANNOT bill TRICARE directly for genetic counseling appointments
Impact: Similar to Medicare - GCs cannot be reimbursed for TRICARE patient visits. Alternative billing arrangements needed.
GCs cannot be the ordering provider on lab orders for Medicare/TRICARE patients if the lab wants to get paid
Solution: Must have physician sign orders or use "incident to" billing under physician supervision for these insurance types.
💡 "Incident To" Billing: GCs can provide services under physician supervision and bill under the physician's provider number for Medicare/TRICARE patients
🗺️ Medicare Administrative Contractors (MAC)
• MACs make local coverage determinations for Medicare Parts A/B
• Determine whether services are "reasonable and necessary" within their region
• Genetic testing eligibility may vary by region (may be more permissive than national guidelines)
• Each region has different MAC contractors with potentially different policies
💡 Tip: Check your regional MAC's Local Coverage Determinations (LCDs) for genetic testing - coverage may differ from national Medicare policies!
⚠️ Medicare Billing Compliance & Insurance Challenges
Billing for a more expensive service/procedure than actually provided
Example: A neurologist spends 30 minutes with a 7-year-old girl for seizure evaluation, but bills using CPT code 99215 (Level 5: 60-74 minutes) instead of the correct 99213 (Level 3: 30-44 minutes). CPT codes are based on visit duration and complexity.
Using individual gene codes instead of contracted panel CPT codes when applicable
Example: Genetic Lab Z had contract for HBOC panel (81432: $1300) but billed individual gene codes totaling $4000 instead. Result: Payment DENIED
When a person undergoes multiple changes in insurance coverage in a short period of time; leads to discontinuity of care (some providers may not be in-network in a new plan). Gaps in coverage can be due to changes in income and employment. Common for individuals with low income.
Example: Patient switches from Medicaid → employer insurance → COBRA → marketplace plan within 6 months, causing disruptions in genetic counseling continuity and provider access.
⚖️ Billing Fraud Consequences: Criminal charges, prison time, millions in fines, and loss of Medicare provider status
💡 Quick Reference Tips
Age 65: Medicare eligibility begins (earned through work history)
Low Income: Medicaid eligibility (varies by state)
Job Loss: COBRA for 18 months or marketplace plans
Military: TRICARE for active duty, retirees, and families
Children: CHIP if family income too high for Medicaid
Disability: SSDI→Medicare (24mo wait) or SSI→Medicaid (immediate)
⚠️ Medicare Part B Alert: NO out-of-pocket maximum! 20% patient responsibility can add up indefinitely
Genetic Testing: Mostly outpatient (Part B) - patients face unlimited 20% costs