Stefanie DieffenbachWHNP-BC
Nurse Practitioner, Women's Health
2027 Medicare Advantage
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Medicare Advantage plans for Multnomah and Clackamas counties, OR.
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We haven't asked Aetna Medicare, AgeRight Advantage, ATRIO Health Plans, CareOregon Advantage, Devoted, Humana, Kaiser Permanente, Regence BlueCross BlueShield of Oregon, UnitedHealthcare and Wellcare's directories about Stefanie yet. A Silverpath advisor can check for you now.
The 41 Medicare Advantage plans we show for Multnomah and Clackamas counties, OR in 2027
- 41 not checked yet
Aetna Medicare
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AgeRight Advantage
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ATRIO Health Plans
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CareOregon Advantage
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Devoted
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Humana
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Kaiser Permanente
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Regence BlueCross BlueShield of Oregon
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UnitedHealthcare
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Wellcare
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Premiums are each plan's own monthly premium, as filed with Medicare. You keep paying your Medicare Part B premium.
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Original Medicare
Original Medicare status
Most Medicare Supplement (Medigap) policies have no provider network: they help pay Original Medicare's cost sharing where Medicare is accepted. Medicare SELECT policies can require network providers for full benefits. Ask the office whether they accept Medicare.
Medicare enrollment and assignment have not been verified here. Advantage directory results do not answer this question.
No opt-out record in this CMS file. CMS's file covers data through 2026-08-31. This does not establish Medicare enrollment, assignment, or whether the office accepts new Medicare patients.
CMS opt-out source · Data through 2026-08-31 · Reviewed Oct 23, 2026
Where they practice
2 practice locations
- NPI issued
- 2024
- Registry record updated
- Oct 15, 2026
Medicare's clinician details aren't available on this page yet.
Questions
Common questions
Where does Stefanie Dieffenbach practice?
2 locations, including 4400 NE Halsey St Ste 286, Portland, OR. All of them are listed on this page.
How do I confirm Stefanie is in my plan's network?
Call the member services number on your plan card and give them the NPI 1033965744, or ask a Silverpath advisor to check for you. It's free.
For providers
Is this your practice?
Patients can use Silverpath to find practices and check plan networks in Multnomah and Clackamas counties, OR. Tell us which plans you take, or want to take, and we'll keep this page accurate and talk with you about reaching more Medicare patients and carriers.