A. Submitting Claims to the Alliance
Providers should review the Alliance member ID card for the claims billing address.
Providers are encouraged to submit claims electronically. However, if sending claims by US Postal Service (USPS), claims for all Alliance members should be submitted for processing as follows:
Professional Claims
Alliance members assigned to an Alliance primary care provider (PCP):
Alameda Alliance for Health
P.O. Box 2460
Alameda, CA 94501-0460
Alliance members assigned to a Children’s First Medical Group (CFMG) PCP (Medi-Cal and Group Care only):
Children’s First Medical Group
P.O. Box 99680
Emeryville, CA 94662-9680
Alliance members assigned to a Community Health Center Network (CHCN) PCP (Medi-Cal and Group Care only):
Community Health Center Network
101 Callan Ave, Suite 300
San Leandro, CA 94577
Hospital/Facility Claims
Hospital/facility claims for all Alliance members:
Alameda Alliance for Health
P.O. Box 2460
Alameda, CA 94501-0460
Behavioral Health Care Claims
Alameda Alliance for Health
P.O. Box 2460
Alameda, CA 94501-0460
Behavioral health care professional claims for specialty mental health services for Alliance Medi-Cal members:
Alameda County Behavioral Health Care Services
Claims Processing Department
P.O. Box 738
San Leandro, CA 94577
Behavioral health care facility claims for Alliance Medi-Cal members:
Alameda County Behavioral Health Care Services
Claims Processing Department
P.O Box 738
San Leandro, CA 94577
Behavioral health care claims for Alliance Group Care members:
Alameda Alliance for Health
P.O. Box 2460
Alameda, CA 94501-0460
Vision Care Claims
Vision care claims for Alliance Medi-Cal and Alameda Alliance Wellness members:
Vision Service Plan (VSP)
Vision care claims for Alliance Group Care members:
Alameda County Public Authority for IHSS
Phone Number: 1.510.577.3552
Dental Claims
Dental claims for Alliance Medi-Cal members:
Medi-Cal Dental
P.O. Box 15610
Sacramento, CA 95852-0610
Dental claims for Alliance Group Care members:
Alameda County Public Authority for IHSS
Phone Number: 1.510.577.3552
Dental claims for Alameda Alliance Wellness members:
Liberty Dental
P.O. Box 26110
Santa Ana, CA 92799
Electronic Claims
Providers interested in submitting claims electronically via Electronic Data Interchange (EDI) should call:
Alliance EDI Department
Monday – Friday, 9 am – 5 pm
Phone Number:
1.510.373.5757
To learn more about our EDI services, please
click here.
Please Note: Claims that require attachments, invoices, etc. may not be sent electronically. They must be submitted on the appropriate paper claim form with the attachments.
B. Reaching the Alliance for Claims
Alliance contracted providers can view claims and status by logging into the Alliance Provider Portal.
For information on how to obtain an Alliance Provider Portal account, additional claim submission requirements, or more complex claim inquiries, please contact your Alliance Provider Representative or call:
Alliance Provider Services Department
Monday – Friday, 7:30 am – 5 pm
Phone Number: 1.510.747.4510
When requesting the status of a claim, you must identify yourself and provide the following information:
- Alliance member date of birth
- Alliance member ID number
- Alliance member name
- Billed charges
- Claim date of service
- Provider name
- Provider tax ID number
If a caller requests the status of a claim and cannot provide all information listed above, the claim status will not be released.
C. Claim Receipt Verification
Verification of claim receipt can be obtained online through the Alliance Provider Portal or by calling:
Alliance Provider Services Department
Monday – Friday, 7:30 am – 5 pm
Phone Number: 1.510.747.4510
The Alliance will acknowledge receipt of paper claims within 15 working days. Claims received electronically will be acknowledged within two (2) working days.
D. Claim Submission Requirements
Timeframe for Claim Submission
- Participating (contracted) providers must submit clean claims within 180 calendar days post service, or post date from the Explanation of Benefits (EOB), if other coverage exists.
- Non-Participating (non-contracted) providers must submit clean claims within 365 calendar days post-service, or post date from the EOB, if other coverage exists.
- Corrected claim must be submitted correctly for reconsideration of payment within 180 calendar days of the last action. A corrected claim may be mistaken as a duplicate claim submission unless it is clearly identified as a corrected claim.
Submitting Claims Outside of the Filing Period
If a claim is submitted outside of the timeframes stated above, proper documentation, also known as “proof of timely filing”, must be attached to the late claim.
Acceptable Proof of Timely Filing Includes
- Certified mail receipt proving claims were received by the Alliance.
- Copy of the Remittance Advice (RA) or EOB from the primary payer indicating the date of resolution (payment, date of contest, denial, or notice) if the claim was denied for untimely EOB.
- Copy of the Alliance Electronic Data Interchange (EDI) Preprocessing Acceptance or Error Report for claims originally submitted electronically.
- Copy of the Alliance RA indicating the date and reason for the original denial for unclean claim denials.
- Documentation/explanation of the cause for the delay in submitting a claim to the Alliance when the provider experiences exceptional circumstances beyond their control.
Claim Processing Time
The Alliance will process all clean claims within 45 working days for claims received on or before December 1, 2025 and within 30 calendar days for claims received on or after January 1, 2026.
Clean Claim
A clean claim is defined as a claim which, when it is originally submitted, contains all necessary information, attachments, and supplemental information or documentation needed to determine payer liability, and make timely payment.
Interest on Claims
The Alliance will calculate and automatically pay interest, in accordance with AB1455 and prompt payment requirements for claims received on or before December 31, 2025, and in accordance with AB 3275 and prompt payment requirements for claims received on or after January 1, 2026, to all providers of service who have not been reimbursed for payment with 45 working days (AB1455) or 30 calendar days (AB 3275) from the receipt of their clean claim.
Misdirected Claims (Medi-Cal and Group Care only)
When a claim is incorrectly sent to the Alliance that should have been sent to one of its delegated partners (i.e., Community Health Center Network (CHCN), Children’s First Medical Group (CFMG), VSP), the Alliance will forward the claim to the appropriate delegated partner within ten working days from receipt of the claim. The provider will also receive a notice of denial on their RA with instructions to bill the delegated entity.
Claims Coding
Medi-Cal and Group Care
The Alliance has a responsibility to control healthcare costs for our providers and for all members. Claims coding and editing enables us to more effectively and universally implement fair reimbursement rules and guidelines aimed at preventing fraud and providing equitable reimbursement to all providers.
- The Alliance follows the Medi-Cal billing requirements and National Correct Coding Initiatives (NCCI) for coding purposes unless otherwise indicated.
- Anesthesia services are to be reported by use of the Level I CPT 5-digit anesthesia procedure code (00100-01999), plus modifier codes as defined in the Anesthesia Guidelines of the AMA Current Procedural Terminology.
- The Alliance updates all systems annually, quarterly, or monthly, as needed, for new codes. New codes will be effective and accepted by the Alliance on the first of the month following announcement or adoption of the new code by Medi-Cal.
Alameda Alliance Wellness
- Alameda Alliance Wellness follows Medicare specific edits, that incorporate National Coverage Determinations (NDCs) and Local Coverage Determinations (LCDs), to review claims from both Contracted and Non-Contracted Providers.
- The Alliance may contract with a third-party vendor to review claims for National Correct Coding Initiative (NCCI) edits or improper billing practices.
Claim Form Requirements
The Alliance has established requirements for filing a claim for payment consideration. Failure to comply with these requirements may impact reimbursement of the claim.
To be accepted as a valid claim, the submission must meet the following criteria:
- Must be submitted on a standard current version of a CMS 1500, CMS-1450 (UB04) or the ANSI X12-837-5010 or most current electronic format.
- Must contain appropriate information in all required fields.
- Must be a claim for an Alliance member eligible at the time of service. Providers can confirm a member’s eligibility online through the Alliance Provider Portal or by calling:
Alliance Provider Services Department
Monday – Friday, 7:30 am – 5 pm
Phone Number: 1.510.747.4510
Additional claim information:
- Must contain correct current national standard coding, including but not limited to CPT, HCPCS, Revenue, DRGs, NDC and ICD-10 codes as well as Medi-Cal Local Codes, and Medicare HIPPS codes as appropriate.
- Must not be altered by handwritten additions to procedure codes and/or charges.
- Must be signed by the rendering provider, if submitted as a paper claim.
- Must be printed with dark ink that is heavy enough to be electronically imaged, if submitted as a paper claim.
- Level III HCPCS (Local Codes) will be accepted in accordance with the DHCS transition plan to Level II HCPCS and CPT coding.
- California regulations require that claims for sterilization services for Medi-Cal members, including services for tubal sterilization, vasectomy, and hysterectomy, must be accompanied by the PM330 form, signed by the member a minimum of 30 days prior to the date of surgery. Consequently, the Alliance will not reimburse professional or facility fees associated with sterilization services unless an appropriately completed consent form is submitted by the primary surgeon. Claims submitted without this form will be denied for payment.
- Claims billed for office injectables must include properly formatted NDC codes and units of measure. Office injectable codes billed without NDC, unit of measure or in an incorrect format will be denied. For additional details, please refer to the Medi-Cal Provider Manual or for Alameda Alliance Wellness claims billing please refer to CMS.
- See examples of paper claim submission below.
NDCs and units billed on CMS1500:

NDCs and units billed on CMS1450:

Additional Information
All disposable and incontinence supplies must be billed with the Universal Product Number (UPN) in addition to the HCPCS Level II code. For EDI claims, impacted medical supply products must be billed with HCPCS Level II codes using the ASC X12N 837P 5010 format. Claims billed without the UPN or medical supply claims which are not submitted in the required format will be denied. For additional details, please refer to the Medi-Cal Provider Manual or for Alameda Alliance Wellness claims billing, please refer to CMS.
See example of paper claim submission below.
Laboratory/Pathology Services
Except for emergency and urgent care services, and those lab services identified as covered under PCP capitation or specifically identified as reimbursed fee-for-service (FFS), laboratory services are carved out to the Alliance’s capitated laboratory provider, Quest Diagnostics. Pathology services, identified as CPT-4 procedure Code range 88300-88399, are payable by the Alliance only when performed in conjunction with emergency or urgent care services, or surgical services performed in an inpatient hospital, outpatient hospital, or free standing surgical facility setting.