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Pharmacy Resources

Providence Health Plan is pleased to provide plan members with a comprehensive prescription drug formulary designed to promote safe, effective and affordable drug therapy. 

Search your plan’s formulary

There are a number of ways to see if your prescription is included in the formulary. You can search alphabetically or by entering a portion of the drug name.

Find an in-network pharmacy

Tips to help you save when you need a prescription

  • Choose generics when possible.
  • Use an in-network retail pharmacy. Search the online provider directory to find an in-network pharmacy near you.
  • Fill maintenance medications (medications taken on a regular, recurring basis for a chronic or long-term health condition) at preferred retail or mail-order pharmacy. You can purchase up to a 90-day supply.
  • Have certain medications pre-authorized before they are filled.

Retail pharmacy

A retail pharmacy can provide up to a one-month supply of prescription medications. Search the provider directory for a pharmacy near you.

Preferred retail pharmacy

A retail pharmacy can provide up to a one-month supply of prescription medications. Search the provider directory for a pharmacy near you.

Mail-order pharmacies

A mail-order pharmacy can provide up to a 90-day supply of maintenance medications and will deliver your prescription directly to your home. To sign up for a mail-order pharmacy use the contact information below, or for more information see the prescription delivery section of this page.

Postal Prescription Services

503-797-2100 or 800-552-6694

Monday – Friday, 6 a.m. to 6 p.m. PT; Saturday, 9 a.m. to 2 p.m. PT

Mailing address:
P.O. Box 2718, Portland, OR 97208

Automated refill line available 24/7, 365 days a year: 800-552-6694

Costco Home Delivery


Monday – Friday, 5 a.m. to 7 p.m. PT; Saturday, 9:30 a.m. to 2 p.m. (Pacific Time)


(Pharmacy is available 24/7 to refill prescriptions, order new prescriptions and check prescription status.)

Mailing address:
802 134th St. SW, Ste 140, Everett, WA 98204-7314 

Contact Costco Home Delivery Pharmacy by email:

All covered members and their qualified dependents have access to these mail order pharmacies. Your network provisions may require the use of just one of these mail order pharmacies for coverage. Please call the Providence Health Plan Pharmacy Department at 877-216-3644 if you have questions.

Specialty pharmacy

Specialty drugs are prescriptions that require special delivery, handling, administration and monitoring by a pharmacist. These drugs are listed on the Providence Health Plan formulary with a status of "specialty."

  • Specialty drugs are available through Credena Health.
  • Some specialty drugs are denoted as Limited Access (LA) on the formulary. Credena Health may not be able to provide some of these medications since they are limited to only a few specialty pharmacies. For more information, consult your provider and pharmacy directory or call Customer Service at 877-216-3644 (TTY: 711), Monday – Friday, 8 a.m. - 6 p.m. (Pacific time).