MedImpact Letter of Medical Necessity Guide
How to write an LMN and overturn a prior authorization denial with MedImpact. Includes denial reasons, turnaround times, appeals address, and clinician tips.
Quick Facts
- Avg Turnaround: 72h standard, 24h expedited
- Appeals Address: MedImpact Appeals Department, 10181 Scripps Gateway Court, San Diego, CA 92131
- Provider Portal: https://www.medimpact.com/
Why MedImpact Denies Prior Authorizations
- 1. Non-formulary
- 2. Step therapy
- 3. PA required
- 4. Dose edit
Clinician Tips for MedImpact
- ✓ Independent PBM (not owned by an insurer)
- ✓ Submit PA via CoverMyMeds, Surescripts, or MedImpact portal
- ✓ Often used by health systems and self-insured employers
Largest privately held PBM. Health system and employer-focused.
MedImpact Prior Authorization FAQ
Why does MedImpact deny prior authorizations?
The most common MedImpact denial reasons are: Non-formulary; Step therapy; PA required; Dose edit.
How long does MedImpact take to review a prior authorization?
MedImpact typically responds in 72h standard, 24h expedited.
What should a Letter of Medical Necessity for MedImpact include?
An LMN for MedImpact should reference the specific medical policy or coverage bulletin, document failed first-line therapies with dates, include current labs and ICD-10 codes, and cite supporting clinical guidelines. Largest privately held PBM. Health system and employer-focused.