Prescription Coverage That Works for You
Get your medicine when you need it. We provide information to help you safely, reliably, and conveniently use your medication benefits, including:
- List of covered prescriptions (formulary)
- Directory of participating (in-network) pharmacies
- Home delivery and 90-day refill options
Jump to: Formulary | Pharmacies | 90-Day Refills and/or Delivery | OTC Contraceptives
Prescription Medication Coverage
CHPW Individual & Family Plans cover prescription drugs based on medical science and the needs of our members. Your share of the cost for prescription drugs depends on your plan and the type of drug (Generic, Preferred Brand, Non-Preferred Brand, and Specialty).
Explore our formulary for a list of the prescriptions we cover:
Search our 2025 online formularies:
Search our 2024 online formularies:
To request a free hard copy of the formulary, please call Customer Service at 1-866-907-1906 (TTY Relay: Dial 711), from 8 a.m. to 5 p.m., Monday through Friday.
If you paid full price for a prescription at a participating retail pharmacy, you can submit a Benefit Coverage request form for a reimbursement. Check the formulary to make sure there were no restrictions on your medication before you ask to be reimbursed. Fill out a Benefit Coverage Request Form and either fax or mail it to Express Scripts.
COVID-19 Vaccines
The Pfizer BioNTech, Moderna, and Johnson & Johnson COVID-19 vaccines are covered on all CHPW Individual & Family Plans at any location where they are offered.
Preventive Medications under the Affordable Care Act (ACA)
Certain medications are covered under the Affordable Care Act (ACA) without any cost sharing when prescribed in accordance with recommendations by the U.S. Preventive Services Task Force. Please note that age, dose, quantity and clinical restrictions may apply.
Learn more about medications covered under the ACA
Medications covered under the ACA:
- Aspirin
- Bowel Preparation Agents
- Breast Cancer Prevention:
- Tamoxifen
- Raloxifene
- Anastrozole
- Exemestane
- Contraceptives
- Fluoride
- Folic acid
- HIV Pre-exposure prophylaxis (PrEP):
- Combined tenofovir disoproxil fumarate emtricitabine (Truvada)
- Tenofovir disoproxil fumarate
- Immunizations when administered by a pharmacist
- Smoking Cessation:
- Bupropion SR
- Varenicline
- Nicotine Replacement
- Cardiovascular disease prevention:
- Atorvastatin
- Fluvastatin
- Lovastatin
- Pravastatin
- Rosuvastatin
Cost-share review
If you were charged a cost share for any of the medications above while taking them for preventive reasons or reasons that are in accordance with the recommendations of the U.S. Preventive Services Task Force, you may request a cost-share [copay] review and request reimbursement. A cost-share [copay] review may be required for certain preventive medications to qualify for zero copay.
To request a cost-share [copay] review, you or your authorized representative must submit a Benefit Coverage Request Form and mail or fax it to:
Express Scripts
Attn: Benefit Coverage Review Department
PO Box 66588
St Louis, MO 63166- 6588
Fax: 877-328-9660
Find a Pharmacy
To help you find a pharmacy that works for you, we offer:
- An extensive network of participating pharmacies across Washington State
- Access to onsite pharmacies at participating Community Health Centers
- Convenient, affordable options near you
Contact your local Community Health Center to learn about onsite pharmacies.
Don’t forget: Bring your CHPW ID card when you pick up your prescription.
Get a 90-Day Supply of Medication
A 90-day supply of select medications is available at all participating network pharmacies. Ask your doctor or pharmacist about a 90-day supply for your prescription.
Set Up Home Delivery
To get started with home delivery:
- Ask your doctor: request that your doctor send your prescriptions electronically to Express Scripts Pharmacy.
- Call: 1-888-637-8383 or TTY users: 1-800-759-1089 (24 hours a day, 7 days a week)
- Online: at express-scripts.com or download the free mobile app. Use your member ID card to register, then follow the prompts to move your prescriptions to home delivery.
Over-the-Counter (OTC) Contraceptive Coverage
What are OTC contraceptives?
Contraceptives, or birth control, help to prevent pregnancy. And some, like condoms or dental dams, also help you protect yourself from sexually transmitted infections. Over the counter (OTC) just means you can buy it without a prescription.
Which OTC contraceptives are covered?
All FDA-approved over-the-counter contraceptives, provided by an in-network pharmacy, in-network online service, or in-network provider are covered with no cost shares by CHPW Individual & Family Plans including:
- Oral contraceptives, like birth control pills
- Emergency contraceptives, like the morning after pill
- Birth control barrier methods, like condoms and dental dams
- Sponges and more
This benefit is available to everyone, for any medical purpose, inclusive of all sexual orientations. There is also no age limit.
How to purchase contraceptives
Make your purchase at an in-network pharmacy, in-network online provider, or in-network clinic and your CHPW Individual & Family plan will pay you back (reimburse you). But you do need to let us know you made the purchase and provide receipts, by submitting a claim.
Keep in mind, some oral contraceptives like the birth control pill or the morning after pill, are not available on the shelf at most pharmacies. To buy in store, you may need to talk to someone at the pharmacy counter.
Also, if you purchase OTC contraceptives from a store that is not in your plan’s network, like a convenience store or vending machine, you will not be able to get reimbursed.
How to get reimbursed for OTC contraceptives
To get reimbursed for over-the-counter contraceptives, follow these steps:
- Make your purchase from an in-network pharmacy or provider.
- Save your receipts.
- Submit your claim within 90 days, by mailing your reimbursement request.
- Send your request in writing by mail including your receipts from the in-network pharmacy or provider directly to:
CHP Claims
PO Box 269002
Plano, TX 75026-9002
Prior Authorization, Formulary Exception, and Emergency Fill
What Requires Prior Authorization?
Some drugs require prior authorization. To check whether your medicine needs prior authorization or has any coverage restrictions:
- Ask your doctor or pharmacist
- Consult your plan information in the:
- Refer to the Clinical Review Criteria for Prescription Drugs online search tool*
*Note: Not all medications listed in the Clinical Review Criteria will be covered on the formulary. Non-formulary medications are subject to the Medical Necessity for Non-Formulary Medications policy. To verify coverage, please ask your doctor or pharmacist, or consult the formulary and Evidence of Coverage (EOC) linked above.
How To Request Prior Authorization
To request prior authorization, ask your doctor to complete the Prior Authorization Form and submit via:
- Fax: 1-877-251-5896
- Mail:
Express Scripts
Attn: Pharmacy Coverage Determinations
P.O. Box 66588
St. Louis, MO 63166-6588
Please register or log into express-scripts.com to get your plan details including Prior Authorization status.
If your prior authorization request is denied by Express Scripts, you may appeal the decision with CHPW. Read about how to appeal or file a grievance.
Formulary Exception
Check whether your medicine needs formulary exception or has any coverage restrictions by referring to the Clinical Review Criteria for Prescription Drugs.
Note: Not all medications listed in the Clinical Review Criteria link will be covered on the formulary. Non-formulary medications are subject to the Medical Necessity for Non-Formulary Medications policy. To verify coverage for our plans, please consult the Evidence of Coverage (EOC) and Formulary.
How To Request a Formulary Exception
Need medicine that isn’t listed on our formulary? You or your provider can call 1-800-753-2851 or submit your request in writing to:
Express Scripts
Attn: Pharmacy Coverage Determinations
P.O. Box 66588
St. Louis, MO 63166-6588
If your formulary exception request is denied by Express Scripts, you may appeal the decision with CHPW. Read about how to appeal or file a grievance.
Emergency Fill
Emergency Fill is when a participating pharmacy dispenses to a Member a prescription drug that is subject to Prior Authorization under their plan, without first obtaining that authorization. The participating pharmacy provider uses their professional judgment to identify that the Member has an “urgent medical need” requiring immediate fill of the prescription medication.
CHPW covers Emergency Fills for the drugs on our formulary with the following limitations:
- Emergency Fills are not available for certain Specialty Drugs, such as oncology drugs, hepatitis C, biologics, multiple sclerosis treatments, and enzyme replacements, which do not meet the criteria for “urgent therapeutic need”
- Emergency Fills are not covered at Non-Participating Pharmacies
Only the Emergency Fill dosage of the Prescription Drug is covered. In the event that the Prescription Drug is continued for treatment beyond the approved Emergency Fill, standard formulary restrictions and utilization management procedures will apply.
You will be responsible for your Cost Share of the Emergency Fill supply, including applicable Deductibles, Coinsurance, and Copayments. Please refer to the Schedule of Benefits for details. The cost share is based on the tier in which the Prescription Drug is included in the Formulary.
Staying Safe
We follow federal laws that set standards to guarantee safe and effective pharmacy services.
You have the right to know what pharmacy services are covered by your plan. For more information or a copy of our pharmacy coverage policies or benefits, you can check your Evidence of Coverage (EOC), or contact Community Health Plan of Washington at 1-866-907-1906 (TTY Relay: Dial 711), from 8 a.m. to 5 p.m., Monday through Friday, or [email protected].
Make a list to keep track of your medications . Write down your medication, supplements, and over-the-counter products. Bring the list with you to all your appointments.
If your prescription is recalled, discontinue use of that medication and contact the provider who prescribed it to you right away.
Help stop fraud. We participate in monitoring for pharmacy fraud and abuse. If you suspect misuse or overuse of pharmaceuticals, contact Customer Service.
Understand your prescriptions. Express Scripts offers safety information about your prescriptions, including possible side effects and harmful drug interactions.
Questions about Prescription Drug Coverage?
If you have any questions about our formulary drug list, copay levels, or policies, please call Customer Service between 8 a.m. and 5 p.m., Monday through Friday. Current members should call 1-866-907-1906 (TTY Relay: 711). Prospective members should call 1-833-993-0181 (TTY Relay: 711).
