CMS hopes to curb drug spread-pricing in Medicaid by explaining to insurers the rules for reporting health care costs. The agency worries that some insurers are claiming inflated pharmacy benefit manager drug charges as true health care costs. Spread pricing is the PBM practice of charging Medicaid managed care plans more for drugs than they pay pharmacies, then pocketing the difference. Studies of Medicaid managed care programs in Ohio , Michigan , Kentucky , and New York , plus a...