Georgia Medicaid PBM: Drug Denials, Prior Auth & Appeals

When a Georgia Medicaid prescription gets denied, the decision almost always traces back to a Pharmacy Benefit Manager (PBM). Federal law gives you protections most families never hear about: on the state's fee-for-service pharmacy program your pharmacy can dispense at least a 72-hour emergency supply while approval is pending, and every denial, fee-for-service or managed care, comes with appeal rights. This guide explains who runs your Georgia Medicaid drug benefit, why a drug gets stopped, and exactly how to push back.

In This Guide

• Who runs your Georgia Medicaid drug benefit (the PBM)
• Why a Georgia Medicaid prescription gets denied
• The 72-hour emergency supply
• How to appeal a Georgia Medicaid drug denial
• The Preferred Drug List and prior authorization
• If you get care at an FQHC: 340B pharmacies
• How the Georgia Medicaid PBM system works behind the scenes
• Frequently Asked Questions
• Learn More

Who runs your Georgia Medicaid drug benefit (the PBM)

Most Georgia Medicaid members never deal with a Pharmacy Benefit Manager directly, but a PBM is making the coverage decisions behind every prescription. A PBM is a third-party administrator: it processes pharmacy claims at the point of sale, builds the network of pharmacies, manages the drug formulary, runs prior authorization and step therapy, and negotiates rebates with drug makers. It is not a pharmacy, and it is not your health plan.

Which PBM handles your prescriptions depends on how you are enrolled.

• If you are in fee-for-service (FFS) Medicaid: OptumRx is the Pharmacy Benefits Manager for the Georgia Medicaid Fee For Service Outpatient Pharmacy Program, per the Georgia Department of Community Health (DCH). OptumRx processes all FFS outpatient pharmacy claims at the point of sale and pays enrolled pharmacies weekly.1 The fee-for-service group is made up of members who are not enrolled in a Care Management Organization.
• If you are in a Care Management Organization (CMO): You get your pharmacy benefit through your CMO and its PBM, not through OptumRx. Georgia Families currently has three CMOs: Amerigroup Community Care, CareSource, and Peach State Health Plan, per DCH.2 Most Georgia Medicaid prescriptions flow through these CMO arrangements. The roster can change as DCH completes its managed care procurement, so confirm your plan with DCH or your CMO before relying on it.

One Georgia-specific point removes a common source of confusion: the drug list is not the same everywhere. A state study of Georgia Medicaid found four entities providing coverage, the three CMOs plus the fee-for-service program, "resulting in four different drug lists," and noted that CMOs or their subcontracted PBMs generally prefer to manage their own drug lists. DCH's own managed care page links a separate drug formulary for each CMO.1 So a drug that is preferred under one CMO can require prior authorization under another, and the fee-for-service Preferred Drug List is not the list that governs a CMO member.

That four-list description is drawn largely from a January 2023 state study of the then-current environment, so confirm the formulary that applies to you with DCH or your own CMO before relying on it.

Why a Georgia Medicaid prescription gets denied

A pharmacy rejection on a Georgia Medicaid drug usually comes down to one of a few PBM rules:

• Prior authorization (PA) required. The drug is not on the preferred list, or it carries a clinical restriction. Your prescriber has to submit documentation and get approval before the drug is covered.
• Step therapy. You have to try a preferred drug in the same class first. If it does not work or you cannot tolerate it, your prescriber can request the non-preferred drug with that history documented.
• Quantity limit. The plan caps how much can be dispensed per fill or per period. This is common for controlled substances and high-cost specialty drugs. A higher quantity can be requested through prior authorization.
• Non-covered drug. A few drugs are excluded entirely, with limited exception pathways.

Federal Medicaid law lets a state steer prescribing through a Preferred Drug List and prior authorization, but it bounds that authority with member protections. Under Section 1927(d) of the Social Security Act, a state may subject any covered outpatient drug to prior authorization, but only if the approval system returns a response within 24 hours of the request and provides for dispensing at least a 72-hour supply in an emergency situation.3 For drugs that treat mental health and substance use conditions, the Mental Health Parity and Addiction Equity Act of 2008 (MHPAEA) requires plans that cover those benefits to apply treatment limitations like step therapy and prior authorization no more restrictively than they apply them to medical and surgical benefits.4 CMS's 2016 final rule applied those parity standards to Medicaid managed care organizations, Alternative Benefit Plans, and CHIP, so in Georgia Medicaid that protection reaches you through your CMO.5

The 72-hour emergency supply

A state Medicaid fee-for-service program may require approval before a covered outpatient drug is dispensed only if its approval system provides a response within 24 hours of a prior authorization request and provides for dispensing at least a 72-hour supply of the drug in an emergency situation, as that emergency is defined by the Secretary of HHS.3 The prior authorization process continues in parallel, so you are not left without your medication while paperwork moves.

Note where that guarantee attaches. It is a condition Congress placed on the state's fee-for-service prior authorization system. If you are enrolled in a CMO, your pharmacy benefit runs through the plan rather than through fee-for-service, so ask the plan or your pharmacy what emergency supply its own rules allow.

The managed care decision clock is different, and it is a ceiling on what the state may allow rather than a promise of how fast an answer arrives. Georgia sets the standard timeframe, and for rating periods starting on or after January 1, 2026 federal rule caps it at 7 calendar days after the plan receives the request. An expedited decision, for when the standard timing could seriously jeopardize your life, health, or ability to attain, maintain, or regain maximum function, must come no later than 72 hours. Either timeframe can be extended by up to 14 additional calendar days if you or your prescriber ask for the extension, or if the plan justifies a need for more information that is in your interest.6

If your pharmacy says a drug needs prior authorization:

How to appeal a Georgia Medicaid drug denial

A prior authorization denial is not the end. Every denial comes with appeal rights, and the deadlines are specific.

When a CMO denies coverage, it must send you a written Notice of Adverse Benefit Determination explaining the decision and your appeal rights.7 From there:

The Preferred Drug List and prior authorization

The Georgia Medicaid Preferred Drug List (PDL) is the fee-for-service list of drugs designated as preferred or non-preferred across therapeutic classes, maintained by DCH. Each CMO manages its own drug formulary alongside it, so a CMO member should work from their plan's formulary rather than the fee-for-service PDL.1 On either list, preferred drugs are covered without prior authorization and non-preferred drugs require it.

The PDL is built on federal authority. Section 1927(d) of the Social Security Act lets a state run a Preferred Drug List and require prior authorization for non-preferred drugs, conditioned on the 24-hour decision and 72-hour emergency-supply safeguards described above.3

When you do owe a copay, Medicaid drug cost sharing is nominal and capped by federal rule. For members at or below 150 percent of the federal poverty level, a state may charge no more than $4 for a preferred drug and $8 for a non-preferred drug, and those maximums are indexed each October. Total premiums and cost sharing for everyone in the Medicaid household cannot exceed 5 percent of family income. Several groups are exempt from Medicaid cost sharing entirely, including individuals in an institution and individuals receiving hospice care, which covers many of the nursing facility residents reading this. And for the low-income members these nominal maximums apply to, the state plan must specify that no provider may deny services because the individual cannot pay the cost sharing.11

If you get care at an FQHC: 340B pharmacies

If you get care at a Federally Qualified Health Center (FQHC) or another safety-net provider in Georgia, your prescriptions may run through the 340B Drug Pricing Program, a federal program that lets covered providers buy outpatient drugs at deep discounts. The provider uses the savings to fund other clinical care.

For Medicaid patients, there is one rule that matters: federal law prohibits a "duplicate discount," meaning a single prescription cannot generate both a 340B discount and a Medicaid rebate.12 Your provider and the state coordinate so each prescription gets only one. As a patient, you do not have to manage any of this; if you receive care at an FQHC, ask its pharmacy team whether your medications can be filled through its 340B pharmacy.

How the Georgia Medicaid PBM system works behind the scenes

You do not need this section to fill a prescription or appeal a denial. It is here for readers who want to understand the money and the rules underneath the benefit.

The Medicaid Drug Rebate Program

Under the Medicaid Drug Rebate Program (Section 1927 of the Social Security Act), drug manufacturers must pay states a rebate on covered outpatient drugs in exchange for Medicaid coverage. The basic rebate is set in federal regulation: for a brand-name drug it is the greater of the difference between the Average Manufacturer Price (AMP) and the manufacturer's best price, or 23.1 percent of AMP; for a generic drug it is 13 percent of AMP.13 An additional inflation rebate applies when a drug's price rises faster than inflation, and states negotiate confidential supplemental rebates in exchange for preferred placement on the PDL.

Pharmacy reimbursement rests on defined federal benchmarks. CMS publishes the National Average Drug Acquisition Cost (NADAC), a national survey-based estimate of what pharmacies actually pay for drugs, which states use to set ingredient-cost reimbursement.14

Spread pricing, curtailed not eliminated

"Spread pricing" is the practice of a PBM billing a plan more for a drug than it pays the pharmacy and keeping the difference. Federal Medicaid managed care rules curtail this practice without flatly banning it: the medical loss ratio (MLR) rule requires that prescription drug rebates be deducted from a plan's medical claims and treats a PBM's retained spread and administrative fees as non-claims costs, so spread cannot inflate a plan's reported MLR.15 CMS applied that treatment to PBMs explicitly in a May 2019 informational bulletin on MLR requirements related to third-party vendors, which works through a PBM example; the 2024 Medicaid managed care final rule reaffirmed that 2019 subcontractor guidance in its preamble without changing the treatment.15 Separately from the federal rules, many states have moved to "pass-through" PBM contracts, where the PBM is paid an explicit fee and the actual pharmacy reimbursement passes through transparently.

A related point that is often misstated: in Medicaid managed care, the "85 percent" MLR figure is a rate-setting standard CMS uses to judge whether a state's capitation rates are actuarially sound, not a flat federal mandate that every plan hit 85 percent or pay money back. A minimum-MLR floor with a payback is a state option.16

Georgia's own PBM regulation

Separate from the Medicaid program, Georgia regulates PBMs that operate in the state under the Georgia Pharmacy Benefits Managers Act (O.C.G.A. §33-64), administered by the Georgia Office of Commissioner of Insurance and Safety Fire. That office is where a PBM complaint goes; check its site for the current filing process and for what the Act requires of a licensed PBM. Note the split: a Medicaid drug denial is appealed through the Medicaid process described above, not through the insurance commissioner.

Learn More

The information on Brevy.com is for educational purposes only and is not a substitute for professional legal, financial, or medical advice. Rules vary by state and program and change frequently. Always verify with the relevant agency or a qualified professional. Brevy is not a law firm, financial advisor, or healthcare provider.