Washington State Insurance Companies Contact: Behavioral Health Provider Numbers
Washington State insurance companies contact information is the set of provider phone numbers and official pages a mental health practice uses for eligibility, claims and appeals. This page lists the behavioral health provider numbers for private insurers that cover Washington State, plus Washington State Medicaid enrollment. Checked October 2026.
MCM South Medical Billing Service bills for psychotherapists and psychiatrists in Washington State and makes these calls for them. Get a Free Quote
Behavioral health provider contacts
Washington StateInsurance Companies Contact
Provider phone numbers for psychotherapists and psychiatrists, checked and sourced.
Confirmed October 2026
Washington State insurance companies contact: private payer provider numbers
Call the provider services number on the patient’s member ID card first. The numbers below come from each insurer’s official provider page. Blue Cross Blue Shield is a federation of independent companies, so only the Washington State licensee applies here. Nothing on this page is legal advice.
| Insurer | Provider phone | Official page |
|---|---|---|
| Aetna | 888-632-3862 Non-Medicare plans 800-624-0756 Medicare plans |
Aetna provider contact page |
| Carelon | 800-397-1630 National provider services line: network status and general questions 800-888-3944 General questions about claims 800-282-4548 Availity Essentials support: claims, eligibility, claim status 877-331-7154 Payspan registration: direct deposit and remittance |
Provider contact information |
| Cigna (Evernorth) | 800-882-4462 Cigna Healthcare 800-926-2273 Evernorth Behavioral Health |
Cigna provider home |
| Humana | 800-457-4708 Medicare eligibility, benefits, claims 800-523-0023 Prior authorization, including behavioral health |
Humana provider home |
| Premera Blue Cross | 877-342-5258 Customer service, option 1: claims payment, vouchers, remittance; 6 a.m. to 5 p.m. PT 800-676-2583 BlueCard eligibility and benefits 888-261-9562 BlueCard claims customer service |
Premera Blue Cross provider contact page |
| United Behavioral Health (Optum) | 877-614-0484 Behavioral health and substance use, 24/7 | UnitedHealthcare provider contact directory |
| UnitedHealthcare | 800-600-9007 Medicare Advantage and Community Plan 888-478-4760 Individual exchange plans 800-291-2634 All Savers |
UnitedHealthcare provider contact directory |
Washington State Medicaid provider enrollment
The Washington State Health Care Authority runs Apple Health (Medicaid). Call 800-562-3022, Medical Assistance Customer Service Center, for billing guidance, coverage and clinical policy. Providers contracted with an Apple Health managed care organization contact that plan. No separate enrollment line is listed. Checked October 2026. Source: Apple Health clinical policy and billing contact sheet.
Washington State Medicare: who processes your Part B claims
Washington State Medicare claims go to one Medicare Administrative Contractor (MAC). Noridian Healthcare Solutions is the Medicare Administrative Contractor (MAC) for Washington State. Medicare Advantage plans from Aetna, Humana or UnitedHealthcare are private plans, so call the number on the member card for those. Medicare, Medicaid and private payers follow different rules. Phone numbers come from the CMS provider contact table, checked October 2026.
| Medicare contractor | Jurisdiction | Provider phone | Official page |
|---|---|---|---|
| Noridian Healthcare Solutions | Jurisdiction F (Alaska, Arizona, Idaho, Montana, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming) | 877-908-8431 (TTY 877-261-4163) | CMS provider contact table |
What to have ready before you call a Washington State insurer
A short, prepared call is faster than a long one. Keep these in front of you before you dial any Washington State insurance companies contact number:
- The patient’s name as it appears on the card, date of birth and address.
- Your individual NPI (National Provider Identifier) and your tax ID.
- The date of service, the CPT code and the total billed amount. See the non-E/M CPT guide and the E/M CPT guide for psychiatrists.
- The claim number from the payer portal, if you have one.
Write down the name of the representative and a call reference number. Phone menus, holds and transfers can add up, and a dropped call means starting over. If you would rather not make these calls, MCM South does it for psychotherapists and psychiatrists.
Washington State insurance contact FAQs
Who do I call for Washington State insurance eligibility and claims for therapy?
Call the provider services number on the patient’s member ID card. If the plan carves out behavioral health, use the behavioral health number for that plan, listed in the table above.
Does MCM South bill Washington State practices?
MCM South currently serves practices in Georgia, Massachusetts, Connecticut, Texas, Florida, New York, Colorado, Tennessee, North Carolina and Illinois, and has worked with providers in all 50 states over time. Request a quote to ask about Washington State.
Where are the numbers for other states?
The full insurance companies contact directory lists insurers by state, with the date each number was checked.
Related: CPT and E/M code guide, in-network vs. out-of-network, billing terms glossary and billing services.
Free CPT code quick sheets for Washington State practices
Three one-page PDFs for your billing desk, built to sit beside the Washington State insurance companies contact numbers above. Each lists the codes with time ranges and links to the CMS pages we checked in October 2026. CPT codes are national, but payer rules vary by state and by insurer.
E/M codes for psychiatrists
Evaluation and management codes plus psychotherapy add-ons, with time ranges.
Psychotherapy codes (non-E/M)
Individual, family, group and crisis psychotherapy codes at a glance.
Psychological and neuropsychological testing codes
Testing, administration and scoring, and brief screening codes.