If you bill Medi-Cal directly, California MMIS fiscal intermediary billing and enrollment runs through two systems: PAVE for provider enrollment and the Medi-Cal Provider Portal for claims. The Fiscal Intermediary (FI) operates the California Medicaid Management Information System (CA-MMIS) under contract with the Department of Health Care Services (DHCS), and it handles enrollment records, claim adjudication, payment, and appeals for fee-for-service Medi-Cal.1DHCS – CA.gov. Request for Information 23-072 Fiscal Intermediary – Maintenance and Operations What follows is what you need to do, in the order you need to do it.
First, Confirm the FI Is the Right Payer
About 95.5 percent of Medi-Cal beneficiaries are enrolled in managed care plans, and only about 4.5 percent remain in traditional fee-for-service.2Department of Health Care Services. Medi-Cal Monthly Eligible Fast Facts The FI processes claims only for fee-for-service beneficiaries and for certain “carved-out” services that managed care plans don’t cover, such as some Drug Medi-Cal and dental services. If your patient is in a managed care plan, you bill the plan, not the FI.
Verify coverage through the Medi-Cal eligibility system before every submission. If the patient is in managed care, confirm which plan and whether the service is delegated to that plan or carved out to fee-for-service. Sending the claim to the wrong entity is one of the fastest ways to get it denied.
Enrolling Through PAVE
You cannot submit any claim until you’re enrolled as a participating Medi-Cal provider. Enrollment runs through the Provider Application and Validation for Enrollment (PAVE) portal.3California Department of Health Care Services (DHCS). Provider Enrollment You need a National Provider Identifier (NPI) with an appropriate taxonomy code for your classification and specialty; you can list more than one taxonomy on the NPI, but one must be designated as primary.4CMS. Find Your Taxonomy Code
Enrollment criteria come from Title 22 of the California Code of Regulations and federal rules.5Cornell Law School. California Code of Regulations Title 22, 51000.50 – Application Review Criteria and Notice of Department Action DHCS acknowledges receipt within 15 days and generally has up to 180 calendar days to act on an application under the Welfare and Institutions Code. That clock can extend if the application is returned as incomplete, so submit clean.
Risk Screening and Background Checks
Federal rules assign every provider type a categorical risk level: limited, moderate, or high. All providers face license verification and database checks. Moderate-risk providers get an on-site visit added. High-risk providers must submit fingerprints and consent to a criminal background check, and so must anyone with a five percent or greater ownership interest.6eCFR. 42 CFR 455.434 – Criminal Background Checks Fingerprints are due within 30 days of the request.
Application Fee
The Medi-Cal application fee for 2026 is $750, required with applicable applications submitted between January 1 and December 31, 2026.7DHCS – CA.gov. Application Fees Physician and non-physician practitioner groups and individual practitioners are exempt. Institutional providers such as clinics and facilities should budget for it.
Revalidation Every Five Years
Enrollment isn’t permanent. Federal law requires every Medi-Cal provider to revalidate at least every five years, regardless of provider type, through PAVE.8eCFR. 42 CFR 455.414 – Revalidation of Enrollment Missing a revalidation deadline can terminate your enrollment, which stops claim payment until you re-enroll.
Submitting Claims to the FI
Electronic submission through the Medi-Cal Provider Portal is preferred and fastest. Electronic claims use the HIPAA 837 format: 837P for professional services and 837I for institutional. Paper filers use the CMS-1500 for professional services and the UB-04 for institutional claims.9Centers for Medicare & Medicaid Services. Professional Paper Claim Form (CMS-1500)
Every claim must carry the correct provider NPI, taxonomy code, patient eligibility information, and applicable diagnosis and procedure codes. Electronic claims that fail formatting rules (missing date ranges, mismatched totals, absent taxonomy codes) reject before adjudication.
The Six-Month Billing Limit
All initial Medi-Cal claims must reach the FI within six months following the month of service. A service delivered on April 15 must be received before October 31.10California MMIS Fiscal Intermediary. Claim Submission and Timeliness Overview After that, payment drops on a fixed schedule:
- Seventh through ninth month after service: reimbursed at 75 percent of the payable amount.
- Tenth through twelfth month: reimbursed at 50 percent.
- After twelve months: denied entirely.
Late billing exceptions exist for defined situations (for example, the patient not identifying as a Medi-Cal beneficiary at the time of service, or a retroactive eligibility determination), but they require specific delay reason codes and supporting documentation and are reviewed case by case. Don’t treat them as a safety net.
How Claims Get Adjudicated and Paid
Once received, a claim enters CA-MMIS adjudication. The system checks recipient eligibility, confirms your enrollment, validates any required authorization, and audits the claim against DHCS billing rules. Federal law requires the state to pay 90 percent of clean claims from practitioners within 30 days of receipt and 99 percent within 90 days.11eCFR. 42 CFR 447.45 – Timely Claims Payment
Payment goes out by Electronic Funds Transfer directly to the provider’s bank. With the payment you receive a Remittance Advice Details (RAD) document that shows payment or denial status for each line, any adjustments, and the reason codes you’ll need to resubmit or appeal.
Coordination of Benefits
Medi-Cal is always the payer of last resort. When a patient has other coverage (private insurance, Medicare, TRICARE), that insurer pays first, and Medi-Cal covers the remaining balance up to its maximum allowed amount.12Medicaid.gov. Coordination of Benefits and Third Party Liability in Medicaid Handbook If the FI identifies third-party liability on a claim, it rejects the claim and sends it back with instructions to bill the other insurer first. After the primary payer processes it, you submit to Medi-Cal along with the other payer’s explanation of benefits.
Appealing a Denial
Start with a Claims Inquiry Form (CIF) for straightforward corrections. If that doesn’t resolve the issue, file a formal appeal in writing within 90 days of the action you’re disputing.13Medi-Cal Providers. Appeal Process Overview Miss the 90 days and the appeal is denied outright.
Use Appeal Form 90-1 and mail it to the California MMIS Fiscal Intermediary, Attn: Appeals Unit, P.O. Box 15300, Sacramento, CA 95851-1300. The FI acknowledges within 15 days and issues a decision within 45 days. If more time is needed, the appeal moves to a professional review unit for an additional 30 days. Providers who exhaust the administrative process may file suit in a local court, naming DHCS, within one year of the final appeal decision.
Post-Payment Audits and Overpayment Recovery
Paid claims aren’t final. States must contract with Recovery Audit Contractors (RACs) who review paid claims for overpayments and underpayments. A RAC can generally review claims going back up to three years from the claim date unless it gets state approval to go further, and it must notify the provider of an overpayment finding within 60 calendar days.14eCFR. Subpart F – Medicaid Recovery Audit Contractors Program Providers have state-law appeal rights against RAC determinations, and if a determination is reversed at any level, the RAC must return its contingency fee for that finding. Federal Medicaid integrity contractors may also audit claims and review cost reports and contracts.
Fraud and Exclusion: The Hard Boundary
Under the federal False Claims Act, civil penalties for each false claim currently range from $14,308 to $28,619, plus three times the government’s actual damages.15Federal Register. Civil Monetary Penalties Inflation Adjustments for 2025 Criminal prosecution for knowingly submitting false claims can bring fines up to $250,000 and up to five years in prison. Providers found to have committed fraud face exclusion from all federal healthcare programs, including Medi-Cal, and submitting a claim while excluded triggers a $10,000-per-item civil monetary penalty plus treble damages.16Office of Inspector General, U.S. Department of Health and Human Services. Special Advisory Bulletin on the Effect of Exclusions From Participation in Federal Health Care Programs
Employers carry the same exposure. If your practice bills Medi-Cal for services provided by an excluded individual you hired or contracted with, the practice faces the $10,000-per-item penalty and possible exclusion. Check the OIG exclusion list before hiring or contracting; “we didn’t know” is not a defense if you should have known.
Where to Get Help
The Medi-Cal Provider website hosts both PAVE and the electronic billing system.3California Department of Health Care Services (DHCS). Provider Enrollment For live help, the Telephone Service Center is at 1-800-541-5555, Monday through Friday, 8 a.m. to 5 p.m., excluding holidays.17CA.gov. Medi-Cal Providers – Contact Us
For automated lookups (check-write dates, claim status, treatment authorization status), the Provider Telecommunications Network is at 1-800-786-4346, 7 a.m. to 8 p.m., seven days a week. You’ll need your Medi-Cal Provider Identification Number (PIN).18California MMIS. Provider Telecommunications Network (PTN)
For recurring billing problems that a CIF or appeal hasn’t resolved, write to the Correspondence Specialist Unit with up to three Claim Control Numbers, copies of relevant RADs, and copies of all prior correspondence. Mail to: California MMIS Fiscal Intermediary, Attn: Correspondence Specialist Unit, P.O. Box 13029, Sacramento, CA 95813-4029.19Department of Health Care Services. Billing