GAMMIS Login: Georgia Medicaid Provider Portal

Official GAMMIS Provider Portal: www.mmis.georgia.gov

Login: GAMMIS Provider Portal login

Provider support: 1-800-766-4456

Last verified: August 2026

GAMMIS is Georgia Medicaid’s provider information and claims-management system. Use the portal to log in, manage your provider account, enroll, track applications, and access provider resources.

The portal covers Georgia Medicaid, PeachCare for Kids®, and related waiver programs. It has a public area open to anyone, and a secure area for logged-in providers.

In the secure area, providers can submit and check claims, verify patient eligibility, submit prior authorizations and referrals, and view remittance advices. This guide focuses on provider access — Medicaid members use a separate login.

GAMMIS Provider Portal Login

Official GAMMIS Login

Use the official GAMMIS portal for Georgia Medicaid provider access. On the homepage, select Login under Login/Manage Account to begin the secure sign-in process.

How to Log In to GAMMIS

1. Go to the official GAMMIS portal.
2. Select Login.
3. Enter your account username and password.
4. Select Sign In.
5. Enter the current six-digit code from your authenticator app.
6. Select Submit, then select Web Portal to open your secure account.

Billing agents and trading partners may then choose the authorized provider account they need to access. (GAMMIS Web Portal User Account Management Guide)

If you are an active Georgia Medicaid provider who has not set up secure access, choose PIN Activation from the GAMMIS homepage. You will need your Georgia Medicaid provider ID and the case-sensitive PIN from your PIN letter. (GAMMIS Web Portal User Account Management Guide)

GAMMIS MFA / Authenticator

GAMMIS requires multi-factor authentication (MFA) for all secure accounts. After your username and password, you’ll enter a six-digit code from an authenticator app.

First-time setup shows a QR code or secret code. Open your authenticator app, choose Add Account, then scan the code or enter it manually. GAMMIS works with any TOTP-based app, including Google Authenticator, Microsoft Authenticator, Authy, Duo Mobile, and Okta Verify.

MFA is tied to each username. If you use more than one GAMMIS account, you’ll need to set up MFA separately for each one.

Forgot Password or Cannot Sign In?

On the sign-in screen, select Having trouble logging in? Enter your username and the email on file, then follow the password-reset link sent to that email.

If self-service doesn’t work, contact the Gainwell Technologies Helpdesk through the portal’s Contact Information menu. Reach out if you:

• Don’t know your username
• Can’t answer your security question
• Have an account locked after 60+ days of inactivity
• Need an MFA reset

If your phone was lost or stolen, the helpdesk can reset your MFA. You’ll get a new QR code at your next login to set up a replacement device. Note: a password reset does not reset MFA.

For general help with claims, eligibility, or enrollment, call the Provider Contact Center at 1-800-766-4456.

GAMMIS Provider Account Activation and PIN

This is for providers who are already approved for Georgia Medicaid and need to set up secure GAMMIS access. Each service location gets its own PIN, and each one must be registered separately.

How to Activate a GAMMIS Provider Account

1. Go to the GAMMIS home page.
2. Under Providers, select PIN Activation.
3. Enter your Georgia Medicaid Provider ID and the PIN from your PIN letter. The PIN is case-sensitive — enter it exactly as printed.
4. Accept the Terms of Service.
5. Fill in your contact info, email, username, password, and any security questions.
6. Save the one-time password (OTP) shown after registration. You’ll need it to sign in.
7. Check your email for the registration confirmation. Look in spam if it’s missing.
8. Go back to the homepage, select Login, sign in with your username and OTP, then set your new password.
9. Set up MFA by scanning the QR code with an authenticator app and entering the six-digit code.

Once you’re in, you can check claims, view remittance info, and verify member eligibility.

What You Need for PIN Activation

• Your active Georgia Medicaid Provider ID
• The PIN from your GAMMIS PIN letter
• Access to the email you’ll use for the account
• A username and password that meet the portal’s requirements
• A TOTP-compatible authenticator app (Google Authenticator, Microsoft Authenticator, Authy, Duo Mobile, or Okta Verify)

PIN letters are mailed to your provider address on file 5–7 business days after enrollment approval.

PIN Activation Problems

• Letter hasn’t arrived: Confirm your enrollment was approved and allow 5–7 business days. It’s mailed to the address on file, not necessarily your service or billing address.
• Letter went to the wrong address: Update your address using the Provider Information Change Form under Provider Information > Forms. GAMMIS must have the correct address before reissuing a PIN letter.
• Provider ID or PIN rejected: Re-enter both carefully — the PIN is case-sensitive. Make sure they match the same service location.
• Registered but no secure menu options: Wait about an hour, or until you get the confirmation email, before logging in again.
• Portal errors: Close all GAMMIS tabs, start a new browser session, and try again.
• Still stuck: Contact EDI Services through the portal’s Contact Information menu, or call the Provider Contact Center at 1-800-766-4456.

Georgia Medicaid Provider Enrollment Through GAMMIS

Georgia Medicaid providers apply through the GAMMIS Enrollment Wizard. It’s one process for both traditional Medicaid and Care Management Organization (CMO) participation.

You must finish every step and upload all required documents before you can submit.

How to Apply for Georgia Medicaid Provider Enrollment

1. Go to the official GAMMIS portal.
2. Open Provider Enrollment, then select Enrollment Wizard.
3. Select Provider Enrollment Application.
4. Choose New Application to start fresh. If you already began one, choose Continue Application and enter your Application Tracking Number (ATN) plus the business or last name exactly as you first entered it.
5. Pick the application type that matches your provider or organization. Complete each panel using Save & Continue — the portal saves your progress, so you can finish across more than one session.
6. Review every panel and upload all documents marked Required. GAMMIS won’t let you submit until they’re all there.
7. Save your ATN and the exact name used on the application. You’ll need both to check status or return to a pending application.

Before you start, check the Georgia Medicaid/PeachCare for Kids® provider manual for your category. It lists the specific forms and documents your provider type needs.

GAMMIS Enrollment Wizard

The Enrollment Wizard is a guided online application, not just a form. It breaks information into panels, saves your progress automatically, and lets you upload documents directly.

A few tips that help it go smoothly:

• Record your ATN as soon as GAMMIS assigns it.
• Follow the on-screen breadcrumbs — they show where you are and let you jump back to fix earlier panels.
• Use Continue Application, not a new application, if you need to stop partway through.
• Gather all your final documents in one folder before you reach the upload panel. Uploading everything at once helps avoid delays.
• Double-check that your provider, service-location, ownership, credentialing, and payee details are complete and consistent before submitting.

If an already-enrolled group is adding a new service location, use the additional-location application instead of starting a new individual enrollment.

What Information Do You Need?

Requirements vary by provider type and application type, so always follow the GAMMIS prompts and your provider manual. In general, prepare:

Information area	What to prepare
NPI	Your National Provider Identifier, correctly listed for the individual, organization, group, or rendering provider
Provider information	Legal business name, provider type and specialty, tax ID, and contact details matching your official records
Service location	Physical practice address, contact info, and practice name as shown on your W-9
Ownership and management	Disclosures for anyone with 5% or more ownership, plus managing employees
Credentials	Current licenses, certifications, and permits required for your provider type
Payee details	Payee designation, and their Georgia Medicaid Provider ID if already enrolled
Supporting documentation	Tax records, licenses, ownership documents, and any provider-specific attachments marked “Required”

Keep names, addresses, tax details, and NPI consistent across the whole application. Mismatches between your application, W-9, and supporting documents can trigger follow-up requests and slow things down.

Check Your Georgia Medicaid Enrollment Application Status

To check a pending or submitted application, go back to GAMMIS, open Provider Enrollment, and select Enrollment Status. You’ll need:

• Your Application Tracking Number (ATN)
• The business name or last name exactly as entered on the application

The status screen shows where your application stands and whether GAMMIS has received your supporting documents. If something’s missing, use Continue Application to finish it.

Once approved, your Georgia Medicaid approval letter will list your provider ID, effective date, service address, category of service, payee info, NPI, and specialty. Keep this letter — you’ll need the provider ID and your mailed PIN to activate secure portal access.

Georgia Medicaid Group/Billing Enrollment and Revalidation

Georgia Medicaid uses GAMMIS for group/billing enrollment, rendering-provider affiliations, and provider revalidation. As of August 2026, providers that did not complete required revalidation may be subject to enrollment suspension under the enforcement that began July 1, 2026.

What Is Group/Billing Enrollment?

Group/Billing enrollment allows an enrolled organization or billing entity to bill Georgia Medicaid for services provided by affiliated rendering providers.

In simple terms:

• Billing provider: The group, clinic, organization, or other billing entity that submits the claim.
• Rendering provider: The individual professional who provides the service.
• Affiliation: The GAMMIS relationship connecting the rendering provider to the billing provider and service location.
• NPI: The National Provider Identifier used to identify the billing and rendering providers.

Georgia Medicaid currently directs applicants to Provider Enrollment → Provider Enrollment Application → Group/Billing Application Type in GAMMIS.

How Group/Billing Enrollment Works in GAMMIS

To apply or update group/billing enrollment:

1. Sign in to the GAMMIS portal.
2. Select Provider Enrollment → Provider Enrollment Application.
3. Choose Group/Billing Application Type.
4. Enter the billing provider, NPI, tax, payee, ownership, and service-location information.
5. Add the appropriate rendering-provider affiliations.
6. Upload all documents marked Required.
7. Save the Application Tracking Number (ATN) and check the application status before billing.

Make sure the rendering provider is properly enrolled and affiliated with the correct billing provider and service location. Having an NPI alone does not establish the required Georgia Medicaid affiliation.

For enrollment questions, contact the GAMMIS Provider Enrollment Unit at 770-325-9600 or 1-800-766-4456.

Georgia Medicaid Provider Revalidation in 2026

Georgia Medicaid requires enrolled providers to complete revalidation on a recurring basis. The process lets Georgia Medicaid confirm that provider information remains accurate and current.

When reviewing revalidation, check:

• NPI and provider information
• Service-location addresses
• Legal and tax/payee information
• Ownership and managing-employee details
• Licenses and credentials
• Group/billing and rendering-provider affiliations
• Contact information

GAMMIS also publishes a Provider Revalidation Past Due report. If a service location appears on the report, follow the current GAMMIS instructions to complete its revalidation.

July 2026 Revalidation and Enrollment Enforcement

The current enforcement date is July 1, 2026. It is not the earlier January 1 deadline.

Georgia DCH announced that providers overdue for required revalidation would have their Medicaid enrollment suspended effective July 1, 2026.

For an affected provider:

• The provider cannot participate in Georgia Medicaid or PeachCare for Kids® while suspended.
• Claims for dates of service on or after July 1, 2026 are not paid for the suspended provider.
• Completing revalidation can lift the suspension, but DCH says the effective date is the date the revalidation application is submitted.
• Retroactive enrollment is not available for the suspension period.
• Providers that do not revalidate within 30 days after receiving the suspension letter may receive a termination notice with appeal information.

GAMMIS continues to publish a Provider Revalidation Past Due list, so providers should check their service locations and complete any overdue revalidation as soon as possible.

Is GAMMIS Being Replaced by Georgia CareConnect?

Yes, but GAMMIS has not been fully replaced as of August 2026. Georgia CareConnect is Georgia Medicaid’s new platform and the long-term replacement for GAMMIS. The transition is happening in phases, so providers still need GAMMIS for many routine Medicaid tasks.

What Is Georgia CareConnect?

Georgia CareConnect is the Georgia Department of Community Health’s new online Medicaid platform. It is part of the state’s Medicaid Enterprise System Transformation and is designed to bring provider resources, services, and tools into a more unified system.

CareConnect is being developed to provide role-based provider access, enrollment and billing tools, reporting, forms, policy resources, and other Medicaid services as they move to the new platform.

The Georgia CareConnect website is already available for public information and selected secure services.

Is GAMMIS Still Used in 2026?

Yes. GAMMIS remains active in 2026.

Georgia CareConnect’s official guidance says users should continue using GAMMIS for most day-to-day tasks until the related functionality is available in CareConnect.

For now, providers should continue using GAMMIS for established workflows such as:

• Provider enrollment and revalidation
• Claims-related activity
• Eligibility checks
• Remittance information
• Provider notices and forms

Do not switch a workflow to CareConnect simply because the new platform is live. Follow the latest instructions from Georgia DCH, GAMMIS, or Georgia CareConnect for your specific provider function.

GAMMIS vs. Georgia CareConnect

GAMMIS	Georgia CareConnect
Legacy Georgia Medicaid system	New Georgia Medicaid platform
Still used for many current provider functions	Functionality is being added in phases
Existing provider workflows remain active	New provider tools and services are being introduced
Uses the current GAMMIS account and MFA process	Moving toward Okta-based authentication
Intended to remain available until functions transition	Intended to eventually replace GAMMIS

This is a phased portal transition, not an immediate shutdown of GAMMIS.

What Providers Should Do Now

• Continue using GAMMIS for existing tasks unless Georgia DCH says that function has moved.
• Use Georgia CareConnect when your provider role or a specific service is directed to the new platform.
• Keep your organization and user email information current for future CareConnect access.
• Do not assume your GAMMIS username, password, or authenticator automatically works in CareConnect.
• Watch official Georgia CareConnect and GAMMIS notices for migration instructions.
• For current GAMMIS provider assistance, call 1-800-766-4456.

For the latest transition information, use the official Georgia CareConnect and GAMMIS websites.

GAMMIS Provider Help, Phone Number and Common Problems

For most Georgia Medicaid provider questions, call the Provider Contact Center at 1-800-766-4456. Gainwell Technologies supports GAMMIS for the Georgia Department of Community Health (DCH).

GAMMIS Provider Phone Number

Support	Phone	Best for
Provider Contact Center	1-800-766-4456	Enrollment, claims, eligibility, revalidation, credentialing, and general GAMMIS help
Local Provider Contact Center	770-325-9600	Local alternative to the toll-free number
EDI Services	1-877-261-8785	EDI, transaction, connectivity, and certain technical portal issues
Local EDI Services	770-325-9590	Local EDI support

The Provider Contact Center is the best starting point for most provider support questions. GAMMIS also provides a Contact Us option through the portal.

When to Contact GAMMIS Provider Support

Contact GAMMIS support when you need help with:

• Login or account access problems
• PIN or account activation
• Enrollment applications or pending applications
• Application status and ATN questions
• Provider affiliations or service locations
• Revalidation or enrollment suspension
• Claims, eligibility, or remittance questions
• General GAMMIS portal navigation

For EDI transactions, data transmission, connectivity, or transaction-format problems, contact EDI Services at 1-877-261-8785.

Common GAMMIS Problems

Problem	What to try
Login problem	Recheck your username, password, and MFA code. Use the password-recovery option if needed.
Account activation problem	Use PIN Activation and make sure the Provider ID and case-sensitive PIN match the same service location.
Application issue	Keep your ATN available and use Continue Application for an unfinished application. Check that all required documents were uploaded.
Enrollment status question	Use Enrollment Status with your ATN and the exact business or last name used on the application.
Revalidation issue	Check the Provider Revalidation Past Due report and complete required revalidation promptly.
Portal access issue	Close GAMMIS tabs, start a fresh browser session, and try again. Contact the Provider Contact Center if the problem continues.

Frequently Asked Questions

Bottom Line

The GAMMIS provider portal remains the main access point for many Georgia Medicaid provider tasks in 2026, even as Georgia CareConnect gradually takes over more functions.

For the most common needs:

• Log in: Use the official GAMMIS portal and select Login.
• New secure account: Use PIN Activation with your Provider ID and PIN.
• Provider enrollment: Use the GAMMIS Enrollment Wizard.
• Check an application: Use Enrollment Status with your ATN.
• Group/Billing enrollment: Select the Group/Billing Application Type and verify rendering-provider affiliations before billing.
• Revalidation: Check for overdue service locations and complete required revalidation promptly.
• Need help: Call the Georgia Medicaid Provider Contact Center at 1-800-766-4456.

Because Georgia is moving from GAMMIS to Georgia CareConnect in phases, always check the latest official instructions before assuming that a particular provider function has moved to the new platform.

Official Sources

This guide is based on official information from Georgia Medicaid/GAMMIS, the Georgia Department of Community Health (DCH), and Georgia CareConnect.

• GAMMIS Provider Portal — Official Georgia Medicaid portal for provider access, enrollment, claims-related services, eligibility resources, provider information, and secure account management.
• Georgia Medicaid Provider Enrollment — Official provider enrollment resources, including the Enrollment Wizard and Provider Enrollment support.
• GAMMIS Web Portal Training — Official training and guidance for portal access, enrollment, Group/Billing enrollment, MFA, revalidation, and other provider workflows.
• Georgia DCH Provider Contacts — Official provider support information, including the Georgia Medicaid Provider Contact Center at 1-800-766-4456 and current customer-service hours.
• Georgia DCH: Provider Revalidation Deadline—July 1, 2026 — Official 2026 guidance on revalidation, enrollment suspension, claims during suspension, and appeal rights.
• Georgia CareConnect — Official Georgia DCH platform for the Medicaid technology transition and new provider resources.
• Georgia CareConnect FAQ — Official explanation of the phased transition from GAMMIS to Georgia CareConnect and continued GAMMIS use during the rollout.