Medical Billing Services in Washington
As a remote-first medical billing company serving Washington practices statewide, MedPrecision pairs WA-specific payer expertise with AAPC-certified billing experts. Premera Blue Cross anchors Washington's commercial payer mix, and any practice that mishandles its fee schedule, modifier rules, or appeal deadlines bleeds revenue every quarter. Apple Health gives providers 365 days from the date of service to get an initial claim a transaction control number in ProviderOne, and 24 months from that date to resubmit, modify or adjust a claim that was timely to begin with — two clocks that discipline our entire Washington claim queue. Washington's prompt-pay rule for health carriers is WAC 284-170-431, not a single per-claim deadline: a carrier's provider contracts must meet a monthly-volume standard of 95 percent of clean claims paid within 30 days of receipt and 95 percent of all claims paid or denied within 60 days, with interest of 1 percent a month on undenied, unpaid clean claims more than 61 days old. Our remote billing team builds Washington workflows around those rules, with payer-level edits, plan portal work and appeals templates tuned to how Washington plans actually adjudicate. Rule text verified at app.leg.wa.gov and the HCA ProviderOne Billing and Resource Guide on 17 September 2026.
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The Washington Billing Landscape
Washington's Medicaid program, Apple Health, covered 1,786,049 people in May 2026 — 1,724,000 in Medicaid and 62,049 in CHIP — per CMS enrollment data. Coverage runs through five managed care organizations: Molina Healthcare of Washington, Community Health Plan of Washington, Coordinated Care, UnitedHealthcare Community Plan and Wellpoint Washington, the plan formerly branded Amerigroup. Foster care enrollees are served statewide by Apple Health Core Connections, administered by Coordinated Care, and Behavioral Health Services Only coverage exists for members whose physical health care sits elsewhere. Apple Health's integration of physical and behavioral health under managed care makes the benefit broad but the billing plan-specific. The commercial market is led by Premera Blue Cross, Regence BlueShield, Kaiser Permanente and UnitedHealthcare. Washington's prompt-pay rule, WAC 284-170-431, is a monthly-volume standard on carrier contracts rather than a per-claim deadline, and the state's balance-billing protections sit in RCW 48.49. Providence, MultiCare, Virginia Mason Franciscan and Kaiser Permanente are the dominant health systems in the Puget Sound region. Eastern Washington and rural communities face provider shortages, with critical access hospitals, rural health clinics and community health centers carrying much of the volume and billing on encounter-rate and cost-based methodologies rather than ordinary fee schedules. Washington requires telemedicine payment parity under RCW 48.43.735 for plans issued or renewed on or after January 1, 2021, with a carve-out that lets hospitals, hospital systems, telemedicine companies and groups of eleven or more providers negotiate a different telemedicine rate. Plan roster and rule text verified at hca.wa.gov and app.leg.wa.gov on 17 September 2026.
Who We Serve in Washington
Our Washington client mix skews toward solo practices, group practices, gastroenterology practices , plus community health centers and telehealth providers. We work with providers in Seattle, Spokane, Tacoma and across the rest of the state, all remotely.
Major Metros Served
What billing costs in Washington
We publish one national rate card and bill Washington practices on exactly the same terms as everywhere else — there is no regional markup and no quote-only tier below enterprise. You pay a percentage of what we actually collect, so if we do not collect, you do not pay.
| Practice size | Rate | Basis | Note |
|---|---|---|---|
| Solo practice | 7.0% | of monthly collections | Monthly minimum applies |
| Group practice | 6.0% | of monthly collections | Volume discounts available |
| Enterprise | Custom | tiered pricing | Scoped per engagement |
- No setup or implementation fee
- No per-claim charge
- No software fee and no markup on third-party costs — clearinghouse fees, postage and payer application fees are passed through at cost
- 12-month initial term, then month-to-month — 60 days' notice either way, no early-termination penalty
Payer Landscape in Washington
Apple Health (Washington Medicaid managed care) routes members through Molina Healthcare of Washington, Coordinated Care, Community Health Plan of Washington and 2 more plans, each with its own authorization rules and fee schedule. On the commercial side, Premera Blue Cross, Regence BlueShield, Kaiser Permanente drive the bulk of Washington claim volume, so we maintain payer-specific denial playbooks and appeal templates for each. Claim clocks in Washington run 365 days for Medicaid and 90-180 days for commercial payers — deadlines our A/R queues are built around. Washington's prompt-pay statute: Washington's prompt-pay standard for health carriers is WAC 284-170-431, adopted under RCW 48.02.060, and it works through provider contracts rather than as a flat per-claim deadline. Every participating provider and facility contract must set a payment schedule meeting at least this standard: 95 percent of the monthly volume of clean claims paid within 30 days of receipt, and 95 percent of the monthly volume of all claims paid or denied within 60 days. A carrier below the standard owes simple interest of 1 percent a month on undenied, unpaid clean claims more than 61 days old, added without a further submission from the provider and never applied to the patient's cost share. The standard does not apply where there is substantial evidence of fraud or where the carrier was denied reasonable access to records. Verified at app.leg.wa.gov on 17 September 2026.
Medicaid Program
Apple Health (Washington Medicaid managed care)
Managed Care Organizations
Key Commercial Payers
Timely Filing Deadlines
Prompt Pay Law
Washington's prompt-pay standard for health carriers is WAC 284-170-431, adopted under RCW 48.02.060, and it works through provider contracts rather than as a flat per-claim deadline. Every participating provider and facility contract must set a payment schedule meeting at least this standard: 95 percent of the monthly volume of clean claims paid within 30 days of receipt, and 95 percent of the monthly volume of all claims paid or denied within 60 days. A carrier below the standard owes simple interest of 1 percent a month on undenied, unpaid clean claims more than 61 days old, added without a further submission from the provider and never applied to the patient's cost share. The standard does not apply where there is substantial evidence of fraud or where the carrier was denied reasonable access to records. Verified at app.leg.wa.gov on 17 September 2026.
Washington Billing Regulations & Compliance
The Washington State Office of the Insurance Commissioner (OIC) sets the rules our Washington billing workflows have to satisfy. Surprise billing in Washington: Washington's Balance Billing Protection Act, RCW 48.49.020, was enacted by 2019 c 427 (2SHB 1065) and amended by 2022 c 263. A non-participating provider or facility may not balance bill an enrollee for emergency services, for non-emergency services performed by non-participating providers at certain participating facilities, or for air ambulance services, and behavioral health emergency services providers are covered too. Since the 2022 amendment the payment and dispute-resolution standards track the federal No Surprises Act. A provider may not ask a patient to waive these protections, and a self-funded group health plan is covered only if it has elected in under RCW 48.49.130. Verified at app.leg.wa.gov on 17 September 2026. Telehealth parity: RCW 48.43.735 requires carriers to cover a telemedicine or store-and-forward service that the plan covers in person, and for plans issued or renewed on or after January 1, 2021 to pay the same amount for a telemedicine service as for the in-person equivalent — the payment-parity rule enacted as SB 5385 (2020 c 92). The parity is not universal: hospitals, hospital systems, telemedicine companies and provider groups of eleven or more providers may negotiate a different telemedicine rate. Audio-only telemedicine is covered, but since January 1, 2023 it requires an established relationship with the provider, and a provider must obtain the patient's consent in advance of the service before billing the patient or the plan for it. Verified at app.leg.wa.gov on 17 September 2026.
State Insurance Regulator
Washington State Office of the Insurance Commissioner (OIC)
Surprise Billing Protection
Washington's Balance Billing Protection Act, RCW 48.49.020, was enacted by 2019 c 427 (2SHB 1065) and amended by 2022 c 263. A non-participating provider or facility may not balance bill an enrollee for emergency services, for non-emergency services performed by non-participating providers at certain participating facilities, or for air ambulance services, and behavioral health emergency services providers are covered too. Since the 2022 amendment the payment and dispute-resolution standards track the federal No Surprises Act. A provider may not ask a patient to waive these protections, and a self-funded group health plan is covered only if it has elected in under RCW 48.49.130. Verified at app.leg.wa.gov on 17 September 2026.
Telehealth Billing Parity
RCW 48.43.735 requires carriers to cover a telemedicine or store-and-forward service that the plan covers in person, and for plans issued or renewed on or after January 1, 2021 to pay the same amount for a telemedicine service as for the in-person equivalent — the payment-parity rule enacted as SB 5385 (2020 c 92). The parity is not universal: hospitals, hospital systems, telemedicine companies and provider groups of eleven or more providers may negotiate a different telemedicine rate. Audio-only telemedicine is covered, but since January 1, 2023 it requires an established relationship with the provider, and a provider must obtain the patient's consent in advance of the service before billing the patient or the plan for it. Verified at app.leg.wa.gov on 17 September 2026.
Common Questions
Common questions about medical billing services in Washington.
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Get a Free Billing AuditHow does MedPrecision handle Apple Health MCO billing in Washington?
Apple Health runs through five managed care plans statewide — Community Health Plan of Washington, Coordinated Care, Molina Healthcare of Washington, UnitedHealthcare Community Plan and Wellpoint Washington, which is the plan formerly branded Amerigroup. Two more arrangements sit beside them: Apple Health Core Connections, the single statewide plan for foster care enrollees administered by Coordinated Care, and Behavioral Health Services Only coverage. Using a retired plan name on a claim or an authorization is a common and avoidable denial, so we verify the member's current plan before charge entry and then work that plan's authorization workflow, formulary rules and claims process. Plan roster verified at hca.wa.gov on 17 September 2026.
What are Washington's prompt pay requirements and how does MedPrecision enforce them?
Washington does not set a flat per-claim deadline with a paper and electronic split. WAC 284-170-431 requires every participating provider and facility contract to carry a payment schedule meeting a minimum standard measured on monthly volume: 95 percent of the month's clean claims paid within 30 days of receipt, and 95 percent of all claims paid or denied within 60 days. A carrier that misses the standard owes 1 percent a month, calculated as simple interest prorated for part of a month, on undenied and unpaid clean claims more than 61 days old, added without the provider submitting anything further. The rule defines a clean claim as one with no defect, impropriety or missing substantiating documentation, and it does not apply where there is substantial evidence of fraud or where the carrier was denied reasonable access to records. We monitor claim aging against those thresholds and raise it with the carrier, and then with the Office of the Insurance Commissioner, when a payer falls behind. Verified at app.leg.wa.gov on 17 September 2026.
How do you handle the payer differences between Seattle metro and eastern Washington?
The Puget Sound market carries a dense mix of commercial payers and large health systems, while much of eastern Washington is served by critical access hospitals, rural health clinics and federally qualified health centers whose reimbursement runs on encounter rates and cost-based methodologies rather than ordinary fee schedules. That difference is a billing difference, not a marketing one: an RHC or FQHC encounter is built and appealed differently from a fee-schedule professional claim. We set up each practice's queue around the payer mix and facility type it actually bills under, in whichever part of the state it sits.
Does MedPrecision offer specialty billing support for Washington practices?
Yes. We bill for a range of practice types in Washington, including gastroenterology, community health centers and telehealth providers, and we keep coder assignments matched to the specialty rather than pooled. Washington adds a specialty wrinkle most states do not: under RCW 48.43.735 a carrier owes the same amount for a telemedicine service as for the in-person equivalent, but hospitals, hospital systems, telemedicine companies and provider groups of eleven or more providers may negotiate a different telemedicine rate, so a large group's telehealth reimbursement is a contract question rather than a statutory one. We code and appeal to whichever of those applies to the practice.
What happens if a payer misses the Washington prompt-pay deadline?
The applicable rule is WAC 284-170-431, adopted under the Insurance Commissioner's authority in RCW 48.02.060. RCW 48.43.515 is sometimes quoted as Washington's prompt-pay statute; it is not — it governs enrollee access to providers and says nothing about claim payment. Under the rule the carrier must pay 95 percent of a month's clean claims within 30 days of receipt and pay or deny 95 percent of all claims within 60 days; miss it and the carrier owes 1 percent a month in simple interest on undenied, unpaid clean claims older than 61 days, added automatically. Because the standard is measured across monthly volume, a single late claim is not by itself a rule violation, which is why we escalate patterns rather than individual claims: we flag stalled payments in our A/R reports and take documented patterns to the Washington State Office of the Insurance Commissioner (OIC). On the filing side, Apple Health claims must reach ProviderOne within 365 days of the date of service, Medicare crossover claims within six months of the Medicare processing date, and commercial payers in Washington typically run 90 to 180 days. Verified at app.leg.wa.gov and the HCA ProviderOne Billing and Resource Guide on 17 September 2026.
How do I choose a medical billing company in Washington?
Prioritize a billing company that already works with Apple Health and the major commercial payers in Washington — payer-specific edits and timely-filing windows are where most WA revenue leaks start. Ask about AAPC-certified coders, transparent pricing, and denial-rate and days-in-A/R reporting before you sign. Because billing is delivered remotely, a company's Washington payer experience matters more than a local office address.
Services for Washington practices
Specialties we bill for
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Services in Washington
Specialties in Washington
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