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Joanna Ellen Stagg, PsyD
I speak: English
My gender: Female
Where I practice
About me
I grew up in Northern California and moved to the beautiful state of Minnesota for my undergraduate schooling. After several years of missing the mountains and the ocean, I moved to Seattle. I've been living here happily, ever since.
About my practice
I joined Kaiser Permanente for its evidence-based approach to health care and its commitment to treating the whole person. I am excited to join a team of providers who are passionate, hardworking, and caring. In the ever-evolving health care landscape, Kaiser Permanente continues providing patients with excellent care. I believe that good psychological care begins with establishing a safe, egalitarian, and transparent relationship between the patient and the provider. In my role, I aim to help patients clarify their personal health care goals and to collaborate with them on the most effective path for reaching those goals. I approach health care from the paradigm that everyone has the wisdom and drive within them to become their most whole and healthy selves. I love providing patients with the tools and treatment that will lead them closer to healthier and satisfying lives.
How I thrive
I enjoy the wonders that Washington state has to offer, including hiking, paddle boarding, swimming, and weekend road trips. I also love spending down time at home reading, cooking, or watching a great movie. I stay inspired in my work by staying abreast of best practices, connecting with other professionals, and keeping up on new books and articles.
My office
Referral requirements
You don’t need a referral to see this providerLanguages spoken by medical staff
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Medical groups, locations, and plans
Kaiser Foundation Health Plan - Wa
Factoria Medical Center
Plans and networks accepted
- Access PPO
- Boeing HMO Network
- Core
- Elect PPO
- Medicare Advantage HMO Anchor IND Part D
- Medicare Advantage HMO Group
- Medicare Advantage HMO GRP Part D
- Medicare Advantage HMO IND Part D
- Medicare Advantage HMO Individual
- Microsoft
- Options
- Options Federal
- Providence Caregivers
- SoundChoice
- Summit PPO
- Swedish Caregivers
- Virtual Plus - Connect Network
Contact information
- Fax
- 425-562-1331
- Main number
- 1-800-422-7932 (toll free)
- TTY Washington Relay Service
- 1-800-833-6388 (toll-free TTY for the hearing/speech impaired)
My training, certifications & licensing
Professional school
Argosy University - SeattleJoined Kaiser Permanente
2017Provider ID
050452License information
Look up this clinician’s credentials at the Washington State Department of Health website.
National Provider Identifier (NPI)
1184938144Cultural Competency Training (CCT)
Kaiser Permanente providers complete accredited cultural competency training.The information in this online directory is updated periodically. The availability of physicians, hospitals, providers, and services may change.
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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 Kaiser Foundation Health Plan (KFHP) products and lines of business, and uses the same geographic distribution consideration to select hospitals in Marketplace plans as it does for all other Kaiser Foundation Health Plan (KFHP) products and lines of business. The measures may include, but are not limited to, HEDIS/CAHPS performance, member/patient complaints, patient safety scores, hospital quality measures, and geographic need. 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 the members' KFHP plan of coverage. All Kaiser Permanente Medical Group physicians and network physicians are subject to the same quality review processes and certifications.
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02/19/2026