Mia Hosaka, DO

To find:

• a provider’s office hours, search our facility directory
• providers in your plan or accepting new patients, call 1-800-813-2000 (toll free) or 711 (TTY for the hearing/speech impaired)
• Oregon Medicaid members: For information about Ride to Care, call 503-416-3955, 855-321-4899 (toll free), 711 (TTY), or visit ridetocare.com
  

If you are looking for a gender affirming treatment provider and can’t find a provider close to you, please call our Member Services department at 1-800-813-2000 for help finding an in-network provider.

The information in this online directory is updated at least monthly. The availability of physicians, hospitals, providers and services may change. For the most up-to-date information, please contact Member Services at 1-800-813-2000. Information about practitioners is provided to us by the practitioners or is obtained as part of the credentialing process.

Medicare Members: To request a hard copy of Kaiser Permanente’s provider directory, please call our Member Services department at 1-877-221-8221, seven days a week, 8 a.m. to 8 p.m. Kaiser Permanente will mail a hard copy of the provider directory to you within three (3) business days of your request. Kaiser Permanente may ask whether your request for a hard copy is a one-time request or if you are requesting to receive the provider directory in hard copy permanently.

If you request it, your request for hard copies of the provider directory remains until you leave Kaiser Permanente or request that hard copies be discontinued.

Kaiser Permanente uses the same quality, member experience, or cost-related measures to select practitioners and facilities in Marketplace Silver-tier plans as it does for all other KFHP (Kaiser Foundation Health Plan) products and lines of business. Members enrolled in KFHP Marketplace plans have access to all professional, institutional and ancillary health care providers who participate in KFHP plans’ contracted provider network, in accordance with the terms of members’ KFHP plan of coverage. All Kaiser Permanente Medical Group physicians and network physicians are subject to the same quality review processes and certifications.

Learn more about provider selection and tiered network criteria

Kaiser Permanente uses the same geographic distribution consideration to select hospitals in Marketplace plans as it does for all other KFHP products and lines of business. Accessibility of medical offices and medical centers in this directory: All Kaiser Permanente facilities are accessible to members.

Help in your language: Interpreter services, including ASL (American Sign Language), are available during business hours at no additional cost to members. Many of our doctors also speak more than one language. Call 1-800-324-8010 (toll free), or 1-800-813-2000 (toll free), or 711 (TTY).
Kaiser Permanente providers complete accredited cultural competency training.

Questions? Please call Membership Services from 8 a.m. to 6 p.m., 7 days a week (except major holidays).

• Portland: 503-813-2000
• All other areas: 1-800-813-2000 (toll free) or 711 (TTY)

For language interpretation services: 1-800-324-8010 (toll free).

For specific license information, including malpractice history and disciplinary actions, you can call the Oregon Medical Board at 971-673-2700 or the Washington State Department of Health at 360-236-4700.

Referrals to affiliated community physicians/providers in Oregon and Washington

Affiliated community physicians/providers are not part of the NWPMG (Northwest Permanente Medical Group). They are physicians/providers credentialed by Kaiser Foundation Health Plan of the Northwest and/or who have a contract with the NWPMG.

If your NWPMG physician decides that you require covered services not available internally from an NWPMG physician, he or she may refer you to an affiliated community physician/provider. You must have a written, authorized referral from Kaiser Permanente in order to receive a covered service from an affiliated community physician/provider.

Referrals to affiliated community dentists in Oregon and Washington

Affiliated community dentists are not part of PDA (Permanente Dental Associates). They are dentists credentialed by PDA for Kaiser Foundation Health Plan of the Northwest, and they have a contract with PDA.

If your PDA dentist decides that you require covered services not available internally from a PDA dentist, he or she may refer you to an affiliated community dentist. You must have a written, authorized referral from Kaiser Permanente in order to receive a covered service from an affiliated community dentist.

If you would like to report an error in provider or facility information, call Member Services at 1-800-813-2000 or contact the web manager.