Insurance Companies Contact by State: Provider Number Guides
Insurance companies contact by state is a set of guides that list the provider phone numbers and official pages a mental health practice uses for eligibility, claims and appeals. Each guide covers private insurers, state Medicaid enrollment and the Medicare contractor for that state. Pick your state on the map or in the table. Checked October 2026.
MCM South currently serves ten states: Georgia, Massachusetts, Connecticut, Texas, Florida, New York, Colorado, Tennessee, North Carolina and Illinois. These guides cover more states so you can find a payer’s provider line wherever you work.
MCM South Medical Billing Service bills for psychotherapists and psychiatrists, so every insurance companies contact by state guide is written for behavioral health providers in solo or group practice.
Behavioral health provider contacts
Insurance Companies ContactPick your state
Filled states have a finished guide. Outlined states are coming soon.
- Guide available
- Coming soon
Insurance companies contact by state: guides available now
Twenty-two insurance companies contact by state guides are live. Each one comes in English and Spanish. Every guide lists the provider services numbers, the state Medicaid enrollment page and the Medicare Part B contractor for that state.
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Insurance companies contact by state: more states coming soon
These insurance companies contact by state guides are being researched and are not published yet. Each one will be added only after its numbers are checked against the insurer, state Medicaid and CMS.gov.
- Alaska (coming soon)
- Arkansas (coming soon)
- Delaware (coming soon)
- Hawaii (coming soon)
- Idaho (coming soon)
- Indiana (coming soon)
- Iowa (coming soon)
- Kansas (coming soon)
- Kentucky (coming soon)
- Louisiana (coming soon)
- Maine (coming soon)
- Mississippi (coming soon)
- Missouri (coming soon)
- Montana (coming soon)
- Nebraska (coming soon)
- Nevada (coming soon)
- New Hampshire (coming soon)
- New Mexico (coming soon)
- North Dakota (coming soon)
- Oklahoma (coming soon)
- Rhode Island (coming soon)
- South Carolina (coming soon)
- South Dakota (coming soon)
- Utah (coming soon)
- Vermont (coming soon)
- Virginia (coming soon)
- West Virginia (coming soon)
- Wyoming (coming soon)
What each insurance companies contact by state guide covers
Every insurance companies contact by state guide separates three kinds of rules, because they often differ. Private insurer numbers come from the insurer’s provider services line. Medicaid enrollment comes from the state Medicaid agency. Medicare claims go to one Medicare Administrative Contractor (MAC) per jurisdiction, listed by the Centers for Medicare & Medicaid Services (CMS) provider contact table . Every insurance companies contact by state guide in this hub uses the same layout, so you can compare states side by side.
- Private payers: behavioral health provider phone numbers, with carve-out plans called out.
- Medicaid: the state agency enrollment page and managed care notes.
- Medicare: the Part B contractor and jurisdiction for the state.
Rules vary by state and by plan. Confirm any number with the payer before you rely on it for a high-value claim.
What to have ready before you call an insurance company
A short, prepared call is faster than a long one. Have the patient’s name as it appears on the card, the date of birth, the member ID, your NPI and Tax ID, and the CPT codes you bill. Write down the representative’s name and a call reference number. For credentialing questions, see our insurance credentialing service and the guide to credentialing and network status .
Related: CPT and E/M code guide , credentialed vs. noncredentialed with insurance , billing resources , state billing guides and who we serve .
Insurance companies contact by state FAQs
Where can I find insurance company phone numbers for my state?
Open the guide for your state in the table above. Each one lists behavioral health provider numbers for the main private insurers, the state Medicaid enrollment page and the Medicare Part B contractor.
Which states have an insurance companies contact by state guide?
Alabama, Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Maryland and the District of Columbia, Massachusetts, Michigan, Minnesota, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, Tennessee, Texas, Washington State and Wisconsin are live now. The other states are marked coming soon.
Does MCM South bill outside these ten states?
MCM South currently serves practices in ten states; request a quote to ask about yours.
Do the numbers apply to psychiatrists and psychotherapists?
Yes. The guides list behavioral health provider lines. Prescribers should also check the medical or pharmacy lines for their plan, since psychiatric E/M claims can route differently. See the mental health billing FAQ .