NHIC California Providers

For provider inquiries, you may contact NHIC:

By phone: call 1-877-527-6613

By fax: 530-634-7498 Written Inquiries ONLY

By mail:

Northern CA:

Written Inquiries
P.O. Box 2006
Chico, CA 95927-2006

Southern CA:

Written Inquiries
P.O. Box 272857
Chico, CA 95927-2857

Listed below are additional phone numbers and mailing addresses that may be helpful to you.

Print-Friendly List of NHIC Contacts

Provider Customer Service Contacts Notice - Beneficiaries

Please do not refer Medicare beneficiaries (patients) to the Medicare Provider Customer Service phone number. The phone number is for providers’ offices only and the Medicare customer service representatives cannot assist beneficiaries. In order to successfully refer the beneficiaries for their Medicare related issues, please refer only to the contacts listed below:

Medicare (Claim related questions/eligibility issues)

1-800-Medicare (1-800-633-4227)

1-877-486-2048 TTY

Social Security Administration (To request a new card or make address changes)

1-800-772-1213

1-800-325-0778 TTY

Telephone Customer Service

For Better Service: Preparation Tips for Calling the IVR or the Provider Help Line

IVR Flow Chart

NHIC, Corp. has developed an Interactive Voice Response (IVR) system to assist you in gaining answers to numerous issues through a speech-enabled, self-service telephone interface driven by your voice, or touchtone. Our Customer Service representatives continue to be available to answer difficult, claim specific questions, and to assist you in using the IVR.Providers can obtain patient eligibility, claim and deductible information, check information, and some general information. Customer Service Representatives will only be available to answer questions that cannot be answered by the IVR. Due to CMS requirements, providers must use the IVR first for the above-mentioned inquiries.

Northern California

(877) 591-1587

Southern California

(866) 502-9054

Complete instructions are available for your reference.

Customer Service Representatives

Call our Provider Help Line for questions about your Medicare Part B claim.

For Northern or Southern California call 1-877-527-6613.

For TTY/TDD:

Northern California - 1-877-715-6398

Southern California - 1-866-315-9617

Customer Service representatives are available 8:00 a.m. through 4:00 p.m., Monday through Friday.

Inquiries Fax Number

For Northern or Southern California

Written Inquiry ( ONLY ) fax: 530-634-7498

Electronic Data Interchange Support Services

Contact the EDI Support Staff to assist you with any questions regarding your electronic claims transmissions, Error Summary Reports, Electronic Remittance Advice, Electronic Funds Transfer, or if you need to obtain an electronic submitter number.

California EDI Support Staff

The California EDI Technical Support Staff is available to take your calls from 8:00 AM until 4:00 PM - Monday through Friday (Pacific Time). Contact EDI Technical Support if you:

Are new to electronic billing;
Need additional information on how to get started; or
Need to change the current enrollment information.

EDI Technical Support | EDI Testing Coordinator | EDI Enrollment Coordinator

California - EDI Technical Support

Northern California (530) 896-7024

Southern California (213) 593-6950

The EDI Technical Support Staff can provide assistance on applying for EDI, adding/changing a submitter number, checking your application status, resetting passwords, applying for Electronic Funds Transfer (EFT), and helping with the general requirements for electronic claims billing (versus paper claims).

You can call us about the Carrier Assigned Bulletin Board System (CABBS), CABBS transmission reports, your Electronic Remittance Advice (ERA), and other questions that you may have about Electronic Data Interchange (EDI).

California - EDI Testing Coordinator

Northern California (530) 879-2663

Southern California (213) 593-6053

Contact the EDI Testing Coordinator for direction on sending your test claims via EDI, if you are testing a software upgrade, or changing from one software version to another.

California - EDI Enrollment Coordinator

Northern California (530) 896-7117

Southern California (213) 593-6052

Our Enrollment Coordinator can assist you with obtaining a new EDI submitter number, add another provider number to your existing EDI submitter number as well as help you to enroll in other EDI transactions including:

Electronic Remittance Advice (ERA)
Electronic eligibility inquiry
Claim status inquiry

NHIC Medicare Mailing Addresses

Department	Northern California	Southern California
Appeals/Redeterminations
Appeals/Redeterminations	P.O. Box 2800 Chico, CA 95927-2800	P.O. Box 272854 Chico, CA 95927-2854
Overpayments	P.O. Box 2808 Chico, CA 95927-2808	P.O. Box 2808 Chico, CA 95927-2808
Claims
Ambulance	P.O. Box 2003 Chico, CA 95927-2003	P.O. Box 272853 Chico, CA 95927-2853
Assigned Claims/ PreferredProvider	P.O. Box 2804 Chico, CA 95927-2804	P.O. Box 272852 Chico, CA 95927-2852
Non-Assigned	Medicare Claims Chico, CA 95976	P.O. Box 272007 Chico, CA 95927-2007
Correspondence
Administrative Mail Attn: (Insert name of person)	P.O. Box 2006 Chico, CA 95927-2006	P.O. Box 54905 Los Angeles, CA 90054-0905
Development System/ Letters (ADS)	P.O. Box 2009 Chico, CA 95927-2859	P.O. Box 272859 Chico, CA 95927-2859
Medical Director: Dr. Craig Haug	75 Sgt William B Terry Dr Hingham, MA 02043	75 Sgt William B Terry Dr Hingham, MA 02043
Written Inquiries	P.O. Box 2006 Chico, CA 95927-2006	P.O. Box 272857 Chico, CA 95927-2857
Electronic Data Interchange(EDI)	P.O. Box 2807 Chico, CA 95927-2807	P.O. Box 2807 Chico, CA 95927-2807
Medicare Secondary Payer (MSP)
General Correspondence	P.O. Box 2004 Chico, CA 95927-2004	P.O. Box 2722855 Chico, CA 95927-2855
Recoupments	P.O. Box 951 Marysville, CA 95901-951	P.O. Box 515301 Los Angeles, CA 90051-6601
Program Payment Safeguard	P.O. Box 2806 Chico, CA 95927-2806	P.O. Box 51447 Los Angeles, CA 90051-5747
Provider Certification/Enrollment	P.O. Box 2812 Chico, CA 95927-2812	P.O. Box 2812 Chico, CA 95927-2812
Reconsideration	First Coast Service Options, Inc. QIC Part B North Reconsiderations P.O. Box 45208 Jacksonville, FL 32232-5208