Medicaid
January 10, 202512 min read

Top 25 Medicaid FAQs Providers Ask

Everything you need to know about Medicaid enrollment, billing, and reimbursement

Enrollment & Credentialing

1. How long does Medicaid enrollment take?

Answer: Medicaid enrollment timelines vary by state, typically 30-90 days. Fee-for-service (FFS) Medicaid enrollment is usually faster (30-60 days). Managed care organization (MCO) credentialing adds another 60-90 days per plan.

Total timeline from start to billing: 90-180 days for most states.

2. Do I need to enroll in each state separately?

Answer: Yes. Medicaid is a state program, and you must enroll separately in each state where you practice. Requirements, processes, and timelines vary significantly by state.

3. What's the difference between Medicaid enrollment and MCO credentialing?

Answer: Medicaid enrollment is with the state Medicaid agency and allows you to bill fee-for-service (FFS) Medicaid. MCO credentialing is with individual managed care plans and is required to see their members.

Most states require Medicaid enrollment before MCO credentialing. In managed care states, MCO credentialing is essential since 70%+ of beneficiaries are in managed care.

4. Do I need a separate NPI for Medicaid?

Answer: No. You use the same NPI (National Provider Identifier) for Medicare, Medicaid, and commercial insurance. You'll need both a Type 1 NPI (individual) and Type 2 NPI (group/facility) if applicable.

5. Can I bill Medicaid if I'm still in credentialing?

Answer: Generally no. You must be fully enrolled and have received your Medicaid provider number before billing. Some states allow retroactive enrollment, but this varies.

Tip: Don't see Medicaid patients until enrollment is complete, or be prepared that claims may not be paid.

Billing & Payments

6. How much does Medicaid pay compared to Medicare?

Answer: Medicaid typically pays 60-80% of Medicare rates, but this varies widely by state and service:

  • Primary care: 50-100% of Medicare (varies by state)
  • Specialists: 40-80% of Medicare
  • Behavioral health: Often matches or exceeds Medicare in some states
  • Procedures: 60-90% of Medicare

Some states have enhanced reimbursement for specific services (e.g., maternity care, pediatrics).

7. What's the timely filing limit for Medicaid?

Answer: Timely filing limits vary by state:

  • 90 days: Texas, Florida
  • 120 days: Ohio, Indiana
  • 180 days: California, Pennsylvania
  • 365 days: New York, Illinois

Best practice: Submit all Medicaid claims within 60 days to allow time for corrections.

8. How long does it take to get paid by Medicaid?

Answer: Clean claims are typically paid within:

  • FFS Medicaid: 14-30 days
  • MCO plans: 30-45 days

Many states have prompt-pay laws requiring payment within 30 days of clean claim submission. Late payments may accrue interest.

9. Can I balance bill Medicaid patients?

Answer: No. Federal law prohibits balance billing Medicaid beneficiaries for covered services. You must accept Medicaid payment as payment in full.

You can only bill patients for:

  • Services not covered by Medicaid (with prior notification)
  • Copayments (if applicable to the patient's plan)
  • Services provided when patient was not eligible for Medicaid

10. Do Medicaid patients have copays?

Answer: It depends on the state and the patient's category:

  • No copays: Pregnant women, children under 18, emergency services
  • Nominal copays ($1-$4): Some states for office visits and prescriptions
  • Higher copays: Non-emergency ER use (up to $8)

Important: You cannot deny service for failure to pay copay. Copays are optional collections.

Managed Care

11. What states use Medicaid managed care?

Answer: Almost all states! 40+ states use managed care for the majority of Medicaid beneficiaries. Only a few states (Alaska, Connecticut, Wyoming) rely primarily on fee-for-service.

In managed care states, 70-90% of beneficiaries are enrolled in MCO plans.

12. How many MCOs should I contract with?

Answer: Aim for 3-4 of the largest MCOs in your state to capture 70-80% of the Medicaid market.

Research which MCOs have the highest enrollment in your region. UnitedHealthcare Community Plan, Molina, Centene (multiple brands), and Aetna Better Health are common national players.

13. Are MCO rates negotiable?

Answer: Sometimes, but it's difficult. MCO contracts are often "take it or leave it" for individual providers.

Negotiation leverage exists if you:

  • Are in a high-demand specialty
  • Practice in an underserved area
  • Have a large patient panel or multi-location practice
  • Offer specialized services (e.g., SUD treatment, ABA therapy)

14. What's the difference between FFS and MCO billing?

Fee-for-Service (FFS):

  • Bill state Medicaid agency directly
  • Standardized rates set by state
  • Simpler authorization processes

Managed Care (MCO):

  • Bill individual MCO plan
  • Rates vary by MCO
  • More authorization requirements
  • Often better customer service and faster payments

15. Do I need prior authorization for Medicaid services?

Answer: It depends on the service and the plan (FFS vs MCO):

  • FFS: Limited prior auth (mainly for high-cost services, DME, some procedures)
  • MCO: More extensive prior auth requirements (imaging, therapy, specialty referrals)

Always verify authorization requirements before providing service.

Behavioral Health-Specific FAQs

16. Does Medicaid cover behavioral health services?

Answer: Yes. Medicaid is the largest payor of behavioral health services in the U.S., covering:

  • Outpatient therapy (individual, group, family)
  • Medication management
  • Intensive outpatient programs (IOP)
  • Partial hospitalization programs (PHP)
  • Residential treatment
  • Substance use disorder (SUD) treatment
  • Peer support services
  • Case management

17. Are LCSWs, LPCs, and LMFTs covered by Medicaid?

Answer: Yes, in most states. Medicaid covers licensed clinical social workers (LCSW), licensed professional counselors (LPC), and licensed marriage and family therapists (LMFT).

Some states require these providers to work under a physician or psychologist's supervision for reimbursement. Check your state's Medicaid provider manual.

18. How many therapy sessions does Medicaid cover?

Answer: Most states do not have hard visit limits for outpatient therapy, especially for children. Medical necessity determines coverage.

However, MCO plans may have soft limits and require authorization after a certain number of visits (commonly 10-20 sessions).

19. Does Medicaid pay for telehealth mental health services?

Answer: Yes. All states expanded telehealth coverage during COVID-19, and most have made these changes permanent for behavioral health services.

Telehealth reimbursement typically matches in-person rates. Some states require specific modifiers or place of service codes.

20. What's the reimbursement for SUD treatment?

Answer: SUD treatment reimbursement varies widely but has improved significantly due to the opioid crisis and federal funding:

  • Outpatient counseling: $40-$80 per session
  • IOP: $100-$200 per day
  • Residential treatment: $150-$400 per day
  • MAT (medication-assisted treatment): Often well-reimbursed

Additional Common Questions

21. Can I drop Medicaid after enrolling?

Answer: Yes, but there are notice requirements. Most states require 60-90 days advance written notice. You must continue seeing established Medicaid patients during the notice period.

22. What happens during Medicaid redetermination?

Answer: Redetermination is the process where states verify a patient's continued Medicaid eligibility (typically annually). Many patients lose coverage due to administrative issues even if still eligible.

Provider tip: Always verify eligibility at each visit. Patients who lose Medicaid may qualify for marketplace coverage.

23. Does Medicaid cover non-emergency medical transportation?

Answer: Yes. Most states are required to provide non-emergency medical transportation (NEMT) to Medicaid appointments for beneficiaries who have no other means of transportation.

Patients must request this in advance (typically 48-72 hours). It's not automatic.

24. Can I see both Medicare and Medicaid patients?

Answer: Yes. Many providers accept both. Some patients are "dual eligible" (both Medicare and Medicaid), meaning Medicare pays first and Medicaid covers copays/deductibles.

For dual eligible patients, bill Medicare first, then submit to Medicaid for the remaining balance.

25. Where can I find my state's Medicaid policies?

Answer: Each state publishes a Medicaid Provider Manual on their Medicaid agency website. This includes:

  • Covered services
  • Billing procedures
  • Authorization requirements
  • Reimbursement rates
  • Timely filing limits
  • Appeal processes

PayorHelp tip: Browse our state-specific Medicaid guides for easier navigation.

Need More Medicaid Help?

Access our state-specific guides, tools, and expert resources for Medicaid enrollment and billing.