Provider Billing Information

CMS Program

Instructions for Billing Paper Claims

Please mail HCFA 1500 form to:

Custody Medical Services

P.O. Box 13019

Long Beach, CA 90853

Information about Electronic Claims Billing

Contact AMM or Office Ally to begin sending your claims electronically

Advanced Medical Management (AMM) Direct Professional and Institutional Claims

§ AMM can accept your claims electronically via an Internet connection.

§ Submit claims electronically 24 hours a day, 7 days a week

§ Various claim formats supported

§ HIPAA transactions 837 / 835 and Real-Time claim status

§ For more information contact AMM at (562) 766-2000

Office Ally Clearinghouse (Professional Claims)

§ Office Ally offers electronic routing of claims. All electronic claims are FREE to the physician.

§ Submit claims electronically 24 hours a day, 7 days a week.

§ Office Ally accepts electronic claim formats from all claim-processing software packages.

§ For more information contact the enrollment department at (949) 464-9129

§ Use Payer ID# AMM01

Claim Status

Verify claim status via Internet connection. Contact AMM at (562)766-2000 to get a user account or visit

Current site is https://www.amm.cc/AccountRequest to register on line.