Georgia Medicaid Prior Authorization (2026): FFS, CMO, Timelines, P2P, Appeals

The Georgia Medicaid prior authorization process is the utilization-management gate that decides whether a requested service is medically necessary and covered before it is provided. Prior authorization (PA) is processed by two pathways depending on whether the member is in fee-for-service or one of the four Georgia Families Care Management Organizations. Federal rules under 42 CFR 438.210 and the CMS Interoperability and Prior Authorization Final Rule (CMS-0057-F) set the timelines, the denial-notice contents, and the appeal rights. This guide walks through the federal framework, the FFS and CMO pathways, what requires PA, standard and expedited timelines, peer-to-peer reviews, the most common denial reasons, and how to navigate the internal appeal and State Fair Hearing process.

By Brevy Care Team · Last verified May 12, 2026

The federal framework for the Georgia Medicaid prior authorization process

Prior authorization rests on two federal regulatory anchors. 42 CFR 440.230(d) authorizes states to place appropriate limits on Medicaid services based on medical necessity or utilization-control procedures, the foundation of all Medicaid PA. 42 CFR 438.210 governs PA in Medicaid managed care, including timeline requirements and the role of clinical expertise in PA decisions.

The most consequential federal change for the prior authorization process is the CMS Interoperability and Prior Authorization Final Rule (CMS-0057-F). Its key requirements:

• Faster standard PA decisions in managed care (down from the prior 14-day baseline)
• Expedited PA decisions for urgent cases (codified in regulation)
• Specific written reasons for each denial
• Public annual PA metrics (approval rates, denial reasons, average decision time, appeal rates)
• Patient Access, Provider Access, and Payer-to-Payer APIs for electronic exchange
• Prior Authorization API (FHIR-based) for electronic submission and tracking

Compliance phases in across the 2026-2027 horizon; counsel and providers should pull the current CMS interoperability page for the operative effective dates.

Federal Medicaid pharmacy law requires prompt PA decisions on complete requests and an emergency-supply mechanism so a member can receive an immediate short supply while PA is pending; pull the current DCH pharmacy PA page for the operative turnaround standard.

The two PA pathways: FFS and CMO

Georgia Medicaid splits prior authorization into two operational pathways based on whether the member is enrolled in fee-for-service (FFS) or in one of the four Georgia Families CMOs.

Fee-for-service pathway

A meaningful share of Georgia Medicaid beneficiaries remain in fee-for-service, including most long-term-care residents in nursing facilities, HCBS waiver participants (CCSP, SOURCE, ICWP, NOW, COMP, Independent Care Waiver Program), dual eligibles for Medicaid wrap-around services, and certain medically complex populations. Pull current FFS enrollment shares from DCH before relying on a specific percentage.

PA for these beneficiaries is processed by:

• Gainwell Technologies (Georgia Medicaid Fiscal Agent): handles PA for medical/surgical services, durable medical equipment, inpatient (in coordination with the QIO), outpatient, and most non-pharmacy FFS services through the Georgia Medicaid Management Information System (GAMMIS). Portal: gammis.com. Phone: 1-800-766-4456. Fax: 1-866-211-6916.
• Gainwell Statewide Pharmacy Benefit Manager (SPBM): handles all pharmacy PA across FFS and all four CMOs uniformly. Phone: 1-800-559-3057. Fax: 1-833-454-3760.
• Alliant Health Solutions: Quality Improvement Organization (QIO) for inpatient admission certification and concurrent review.

CMO pathway

The remaining beneficiaries are enrolled in one of the four CMOs, and PA is processed by the CMO's internal utilization-management department. Each CMO maintains its own PA forms, clinical criteria (typically based on InterQual or MCG, customized to Georgia Medicaid requirements), and provider portal for electronic submission. Pharmacy PA, however, is uniformly delegated to the Gainwell SPBM across all four CMOs.

Standard and expedited timelines under the Georgia Medicaid prior authorization process

The CMS-0057-F final rule and longstanding 42 CFR 438 timelines together drive the operative PA clock. Pull the current CMS-0057-F page and your CMO Provider Manual for the operative effective dates and any state-specific tightening.

Critical practice point: the 10-day window for requesting continuation of benefits is the most frequently missed deadline in Medicaid appeals. Without continuation of benefits, the member loses access to the service during the appeal even if they ultimately prevail.

What requires PA in the Georgia Medicaid prior authorization process

The exact list of services requiring PA updates periodically. Verify current requirements at gammis.com (FFS) or in the relevant CMO provider manual. Operational PA categories include:

Pharmacy

• All non-preferred drugs on the Georgia Medicaid Preferred Drug List
• Brand-name drugs when a generic exists
• Specialty pharmacy products (hepatitis C antivirals, oncology, biologics, immunomodulators)
• Opioids beyond initial acute-supply windows
• Buprenorphine for opioid use disorder beyond an initial grace period
• Long-acting injectable antipsychotics, growth hormone, ESAs, and other biologics
• Compounded medications above threshold dollar amounts

Durable medical equipment

Georgia Medicaid DME is administered as a tiered framework. Lower-cost basic items (basic walkers, manual wheelchairs, glucometers, CPAP supplies) do not require PA; mid-tier items (standard hospital beds, mobility scooters, oxygen concentrators) move through streamlined PA; complex items (power wheelchairs Group 2 and above, continuous glucose monitors, bariatric equipment, BiPAP, ventilators, wound-VAC, complex pediatric DME) require full PA. Capital purchases above the DME policy threshold and rentals beyond an initial period also require PA; pull the current DME policy for specific dollar thresholds.

Inpatient and acute care

All scheduled or elective inpatient admissions, length-of-stay extensions beyond initial certification, acute inpatient psychiatric care (with concurrent review at defined intervals), inpatient rehabilitation, long-term acute care hospitals, and skilled nursing facility admissions for Medicare-Medicaid duals require PA.

Outpatient procedures

Outpatient surgery above policy dollar thresholds, advanced imaging (MRI, CT, PET) beyond defined frequency, cardiac catheterization, bariatric surgery, spinal surgery, joint replacement, genetic testing, sleep studies, and hyperbaric oxygen.

Behavioral health

Inpatient psychiatric admission, Psychiatric Residential Treatment Facility (PRTF) for under-21, partial hospitalization, intensive outpatient programs beyond initial authorization, Applied Behavior Analysis for autism, therapy sessions beyond standard initial allotments, ECT, and TMS.

Home health and personal care

Home health services beyond an initial episode, private-duty nursing (all hours), personal care services (authorized through the member's care coordinator), and HCBS waiver services (continuous care plan PA through the service coordinator).

Therapy services

Physical, occupational, and speech therapy beyond an initial visit allotment for adults; ABA for autism; cognitive rehabilitation.

Transportation, vision, hearing, dental

Non-emergency medical transportation (NEMT) exceptions for out-of-area or specialty needs; air ambulance (always PA except true emergency); inter-facility transport. Eyeglasses beyond a standard frame allowance; specialty eyewear; hearing aids; cochlear implants. Adult dental is emergency-only over age 21; pediatric orthodontia is EPSDT-funded only if medically necessary.

How to submit a PA request

1. Verify member eligibility and CMO assignment. Check the Gateway provider portal or call the member's CMO or Gainwell. PA submitted on the wrong pathway will be returned.
2. Gather complete clinical documentation. Diagnosis codes (ICD-10) with clinical narrative; service codes (CPT/HCPCS); documentation of medical necessity (clinical notes, imaging, labs); face-to-face encounter documentation for DME items requiring it; trial of less-expensive alternatives (PDL alternatives for pharmacy, less-expensive DME for power chair, standard therapy before higher-intensity programs); provider signature and NPI.
3. Submit through the appropriate channel. FFS: GAMMIS portal at gammis.com, fax 1-866-211-6916, or phone 1-800-766-4456. Each CMO has its own provider portal and PA fax; pull the current PA-submission contacts from your CMO Provider Manual. Pharmacy (all): Gainwell SPBM 1-800-559-3057 or fax 1-833-454-3760.
4. Indicate expedited if applicable. If the standard timeline would jeopardize the enrollee's life, health, or ability to attain or maintain maximum function, request expedited review. Provide clinical justification (acute exacerbation, post-discharge service, time-sensitive diagnosis).
5. Track the request. Note the PA reference number, submission date, and document any verbal communications with the UM nurse.

Peer-to-peer reviews

A peer-to-peer (P2P) review is a clinical discussion between the requesting provider and the CMO's medical reviewer (typically a physician) before a final denial. P2P is the single most effective tool for reversing initial denials before formal appeal.

All four Georgia CMOs offer P2P review. Providers must typically request P2P within a short window after the initial denial (varies by CMO; pull the current Provider Manual). The CMO's UM department schedules the discussion, typically 15-30 minutes, focused on clinical rationale.

P2P outcomes include approval (original denial reversed, service approved); modification (alternative service approved, such as less-expensive DME or alternative therapy course); and denial upheld (member can proceed to internal appeal). P2P is not an appeal: it is a pre-appeal clinical conversation. Filing an internal appeal is a separate, formal process with its own 60-day filing window.

The appeal process under the Georgia Medicaid prior authorization process

Step 1: CMO internal appeal (mandatory for managed care)

Under 42 CFR 438.408, the member or authorized representative must file an internal appeal with the CMO before requesting a State Fair Hearing. Internal appeals can be filed by phone (oral followed by written confirmation within 10 days), mail to the CMO appeals address (in the denial notice), fax to the CMO appeals fax (in the denial notice), or online through the CMO member portal.

Key parameters:

• Filing window: 60 calendar days from the date of the adverse benefit determination notice
• Acknowledgment: CMO must acknowledge receipt within 5 business days
• Resolution: 30 calendar days standard, 72 hours expedited
• Continuation of benefits: available if requested within 10 calendar days of notice
• Right to review the file: member can request and receive the case file used to make the determination, free of charge
• Right to submit additional information: written documents, witness statements, additional medical records

Step 2: State Fair Hearing

After exhausting the internal appeal, the member has 120 days to file a State Fair Hearing under 42 CFR 431.220. In Georgia, hearings are conducted by the Office of State Administrative Hearings (OSAH).

• Filing: submit to DCH Member Services (1-866-211-0950) or to OSAH directly (1-404-657-3300)
• Hearing scheduled and decision rendered: OSAH publishes its standard timelines; pull the current OSAH procedural rules
• Representation: member may be represented by an attorney, advocate, family member, or other person. Atlanta Legal Aid Society and Georgia Legal Services Program provide free representation for income-eligible beneficiaries.
• Continuation of benefits: available if requested within 10 days

Step 3: Judicial review

Final OSAH decisions may be appealed to Georgia Superior Court under the Georgia Administrative Procedure Act. Pull the current Georgia APA judicial-review window from counsel before filing. The standard of review is substantial evidence, with deference to the agency on matters within its expertise.

Adverse benefit determination notices

Under 42 CFR 438.404, the denial notice must include the adverse benefit determination; the reasons for the decision (specific to the case, not generic); the right to file an appeal and procedures; the right to request a State Fair Hearing after internal appeal; the circumstances for expedited resolution; the right to continuation of benefits if appeal filed within 10 days; and potential liability if benefits are continued and the determination is upheld. If the notice fails to include any of these elements, the deficiency itself can be grounds for appeal.

Common denial reasons and how to respond

1. Lack of medical necessity documentation. The leading cause of initial denial. UM reviewers look at clinical notes, not PA form check-boxes. Provide complete progress notes, imaging reports, lab results, and a detailed clinical narrative tying the diagnosis to the requested service. For DME, include the face-to-face encounter note. For pharmacy, include trial-and-failure documentation for PDL alternatives.
2. Failure to trial preferred alternatives. Pharmacy PA requires documented trial of PDL preferred drugs first. DME PA requires documentation of less-expensive alternatives. Therapy PA may require documentation of less-intensive services. Submit a trial log with dates, dosages or treatment intensity, response, and reason for discontinuation.
3. Service exceeds policy limits. Therapy visits over annual cap, imaging over allowed frequency, opioid days supply over acute limit. Document medical necessity for additional units. Cite EPSDT for under-21 to bypass standard adult caps.
4. Out-of-network provider. If the requested provider is out of the CMO network, request a single-case agreement; demonstrate unique expertise unavailable in-network; document attempts to secure in-network care that failed.
5. Member not eligible at date of service. Verify eligibility through Gateway; if member should have been eligible (procedural termination within reconsideration window), pursue retroactive reinstatement; submit retroactive PA after eligibility restored.
6. Service not covered for adult population. Adult dental, limited adult vision, hearing aids. For under-21, cite EPSDT, which requires coverage of any medically necessary service that corrects or ameliorates a condition.
7. Documentation incomplete. Missing face-to-face encounter note for DME, missing PA form fields, missing diagnosis codes. Resubmit with complete documentation; typically the fastest path to approval.
8. Service requires step therapy. Submit step-therapy documentation; if patient has contraindication to preferred alternative, document clinical reason; if patient was previously stable on the requested drug, request stabilization exception.

Worked examples of the Georgia Medicaid prior authorization process

Standard PA: Marcus (49), CareSource, scheduled knee MRI

Marcus's PCP orders an MRI for suspected meniscal tear with mechanical symptoms and failed conservative treatment (physical therapy for several weeks, NSAIDs, knee brace). The PCP submits PA via the CareSource provider portal with imaging history and clinical notes. The CareSource UM nurse reviews the next day. Documentation supports medical necessity. PA approved within the standard window. MRI scheduled the following week.

Expedited PA: Aisha (4), Peach State, home IV antibiotic

Aisha has a cystic fibrosis exacerbation hospitalized on a Friday. The discharge plan is a 14-day IV antibiotic course via home infusion. The hospital case manager submits an expedited PA with clinical jeopardy attestation (early discharge dependent on PA approval). The Peach State UM nurse reviews the next morning. PA approved within the expedited window. Home infusion company delivers equipment; Aisha discharged Monday afternoon.

Emergency pharmacy supply: Robert (62), FFS, hepatitis C treatment

Robert is diagnosed Hep C and prescribed Mavyret. Pharmacy submits to Gainwell SPBM; the specialty antiviral requires PA. Gainwell SPBM dispenses an emergency short supply immediately under federal Medicaid pharmacy law. The specialist submits PA documentation the next day with viral load, genotype, treatment-naive status, and fibrosis score. PA approved promptly on a complete request. The full course is dispensed without interruption.

Denial reversed at peer-to-peer: Sarah (9), Amerigroup, Group 3 power wheelchair

Sarah has spastic quadriplegic cerebral palsy. Her assistive technology professional evaluation is completed; a Group 3 power wheelchair is requested with tilt-in-space, custom seating for scoliosis management, and head array. Amerigroup's initial PA review denies citing "Group 2 may meet needs." Sarah's PT requests a peer-to-peer review within the CMO's required window. During the discussion, the PT documents tilt-in-space requirement for pressure relief, custom seating for spinal alignment, and head array for severe upper-extremity involvement. The medical director agrees Group 3 is medically necessary. PA approved; equipment ordered.

Internal appeal: David (54), WellCare, denied bariatric surgery

David has BMI in the bariatric-surgery range plus T2DM, hypertension, and sleep apnea. The bariatric surgeon submits PA. WellCare denies citing "medically supervised weight-loss program documentation insufficient." David's surgeon files an MCO internal appeal with additional documentation: dietitian records, exercise log, weight-loss attempts, comorbidity progression. WellCare resolves the appeal within the standard 30-day window and approves the laparoscopic gastric sleeve.

State Fair Hearing: Eleanor (78), Amerigroup, denied SNF transfer

Eleanor is hospitalized after a stroke. Discharge is planned to a skilled nursing facility for sub-acute rehab. Amerigroup denies the SNF transfer, citing "skilled rehab can be provided at home with home health agency services." The daughter files an MCO internal appeal; Amerigroup's expedited review upholds the denial. The daughter files a State Fair Hearing with OSAH and requests continuation of benefits within 10 days. At the OSAH hearing, PT, OT, and the discharge planner testify that Eleanor's mobility deficits and ADL impairment require 24/7 nursing oversight. The ALJ rules the SNF admission medically necessary; Amerigroup's decision is reversed; Eleanor is admitted to the SNF.

Things commonly missed in the Georgia Medicaid prior authorization process

1. Submitting PA without complete clinical documentation is the leading cause of initial denial; the PA form is the cover sheet, not the case.
2. Not knowing whether the member is FFS or CMO sends the request to the wrong pathway and delays the decision.
3. Missing the peer-to-peer request window forfeits the single most effective pre-appeal reversal tool.
4. Filing internal appeal late: the 60-day window from notice is firm; missing it forfeits appeal rights.
5. Not requesting continuation of benefits within 10 days means the member loses service access during the appeal.
6. Submitting paper PA when electronic submission is available slows processing and increases error rates.
7. Treating initial denials as final: peer-to-peer and internal appeal reverse a meaningful share of initial denials.
8. Failing to document medical necessity in clinical notes; UM reviews clinical notes, not PA form checkboxes.
9. Not understanding step therapy requirements; document trial of preferred alternatives or document contraindication.
10. Submitting PA the day of service: not enough time for standard review; expedited only for true health jeopardy.
11. Confusing FFS pharmacy with CMO pharmacy: pharmacy PA is uniformly through Gainwell SPBM across all four CMOs.
12. Not checking the Georgia PDL before prescribing: preferred drugs typically do not require PA.
13. Forgetting EPSDT modifies PA criteria for under-21: pediatric PA must apply the correct-or-ameliorate standard, not standard adult criteria.
14. Filing an appeal without specifying expedited if there is health jeopardy: default is standard window.
15. Not preserving documentation timeline: keep dated copies of all submissions, faxes, phone confirmations, and notices.

Frequently Asked Questions

A few more common questions:

Can I keep getting the service while I appeal? Yes, under 42 CFR 438.420, if you file your internal CMO appeal within 10 days of the denial notice and request continuation of benefits, your services continue during the appeal. If you lose the appeal, you may be required to repay benefits received during continuation. The 10-day window is the most frequently missed deadline in Medicaid appeals; mark it carefully.

Does my pharmacy need PA for my medication? Most medications on the Georgia Medicaid Preferred Drug List do not require PA. Non-preferred drugs, brand-name drugs when a generic exists, specialty pharmacy products (hepatitis C antivirals, oncology, biologics), opioids beyond initial acute-supply windows, and certain other categories require PA through the Gainwell SPBM (1-800-559-3057). For urgent need, the pharmacy can dispense an emergency short supply while PA is pending.

My child needs a service the CMO says is not covered. Can EPSDT help? Yes. Under EPSDT, Medicaid is required to cover any medically necessary service for children under 21 that corrects or ameliorates a physical or mental condition, including services not generally covered for adults. PA criteria for children must apply this broader correct-or-ameliorate standard. If a CMO denies a service for your child citing standard adult criteria, request EPSDT review or file an appeal.

Contacts for the Georgia Medicaid prior authorization process

For service-specific PA rules, see Brevy's guide to Georgia Medicaid managed care plans, Georgia Medicaid durable medical equipment coverage (tiered DME PA framework), Georgia Medicaid prescription drug coverage (PDL and pharmacy PA), Georgia Medicaid home health coverage (episode-based PA and private-duty nursing), and Georgia Medicaid behavioral health coverage (PRTF, ABA, and parity-protected PA). The Georgia Medicaid covered services overview lists every service category and whether PA generally applies. For broader appeals process detail, see Georgia Medicaid appeals and fair hearings.

Find personalized help navigating the Georgia Medicaid prior authorization process at brevy.com.