PractitionerExceptional8.9
Stacy M. Ronquillo, FNP-BC, AGACNP-BC
Portland, OR
Functional Medicine
24 verified reviews
Best Functional Medicine Doctors in Oregon
Functional medicine practitioners who address root causes of disease through systems-oriented, patient-centered care. Browse and compare functional medicine doctors across Oregon, scored by AI, powered by real data.
Showing 24 of 24 functional medicine doctors in Oregon
Last updated: May 2026
The highest-rated functional medicine doctors in Oregon include Stacy M. Ronquillo, FNP-BC, AGACNP-BC (BDS 8.9), Laura S. Martell, ND, LAc, FABNO, IFMCP, MSCP (BDS 8.6), Lisa Siino, DO, IFMCP (BDS 8.5). Rankings are based on BestDosage's transparent BDS scoring methodology, which evaluates credentials, experience, and patient outcomes across 12 categories.
BestDosage has evaluated 24 functional medicine doctors across Oregon based on credentials, patient reviews, and practice transparency. The average BestDosage Score across Oregon is 7.0 / 10 — reflecting a strong overall standard of care statewide. Functional medicine doctors are typically MDs, DOs, NDs, or NPs with additional training through the Institute for Functional Medicine (IFM). Look for board certification and documented experience with root-cause, systems-based protocols.
Functional Medicine Doctors by City in Oregon
PractitionerExceptional8.6
Laura S. Martell, ND, LAc, FABNO, IFMCP, MSCP
Portland, OR
Published
Functional Medicine
14 verified reviews
PractitionerExceptional8.5
Lisa Siino, DO, IFMCP
Portland, OR
Functional Medicine
43 verified reviews
PractitionerExceptional8.5
Shalli B. Deyo, PharmD, IFMCP
Portland, OR
Published
Functional Medicine
69 verified reviews
PractitionerExceptional8.2
Stephanie Jones, ARNP-C, IFMCP
Portland, OR
Published
Functional Medicine
2 verified reviews
PractitionerExceptional8.1
Michelle Eckroth, MD
Portland, OR
Functional Medicine
34 verified reviews
PractitionerExceptional8.1
Aleksandra Giedwoyn, MD
Portland, OR
PublishedClinical Trials
Functional Medicine
6 verified reviews
PractitionerExceptional8.0
Ericha Clare, ND, LAc, IFMCP
Portland, OR
Published
Functional Medicine
162 verified reviews
Practitioner
Jillian Moehle, ND, IFMCP, MSCP
Portland, OR
Functional Medicine
2 verified reviews
Practitioner
Virginia Shapiro, DC
Portland, OR
Functional Medicine
5 verified reviews
Practitioner
Krista Espenship, IFMCP
Portland, OR
Functional Medicine
6 verified reviews
Practitioner
Yulia Brockdorf
Hillsboro, OR
Integrative MedicineFunctional Medicine
2 verified reviews
Practitioner
Maggie K. Yu, MD
Portland, OR
Published
Functional Medicine
129 verified reviews
Practitioner
Jill Carter, DNP, FNP, PMHNP
Portland, OR
Published
Functional Medicine
2 verified reviews
Practitioner
Anna T. Fellmann, MD
Eugene, OR
Published
Functional Medicine
15 verified reviews
Practitioner
Frank A. Sievert, MD
Portland, OR
Published
Functional Medicine
182 verified reviews
Practitioner
Ann Moffett
Eugene, OR
Functional Medicine
Practitioner
Kaley Bourgeois, ND
Portland, OR
NPI Verified
Functional Medicine
49 verified reviews
Practitioner
Staci Whitman, DMD, IFMCP
Portland, OR
Published
Functional Medicine
278 verified reviews
Practitioner
Ann Marie Dundas
Portland, OR
Functional Medicine
3 verified reviews
Practitioner
Lara Williams
Portland, OR
Functional Medicine
45 verified reviews
Practitioner
Chenelle D. McCaskill
Eugene, OR
Functional Medicine
2 verified reviews
Practitioner
Mary Kate Coppedge, NP
Eugene, OR
Published
Functional Medicine
3 verified reviews
Practitioner
Kelly Witbeck
Portland, OR
Functional Medicine
Frequently Asked Questions
Who is the best functional medicine doctor in Oregon?
The highest-rated functional medicine doctors in Oregon based on BestDosage Scores include Stacy M. Ronquillo, FNP-BC, AGACNP-BC (BDS 8.9), Laura S. Martell, ND, LAc, FABNO, IFMCP, MSCP (BDS 8.6), Lisa Siino, DO, IFMCP (BDS 8.5). Rankings are updated regularly using credentials, patient reviews, and practice transparency data.
How are functional medicine doctors in Oregon scored?
Each functional medicine doctor is scored across 12 categories using public reviews and verified credentials. Scores range from 1 to 10, with tiers from "Listed" to "Elite."
How many functional medicine doctors are listed in Oregon?
We currently have 24 functional medicine doctors listed in Oregon. Browse by city to find providers near you.
How much does a functional medicine doctor cost in Oregon?
Functional medicine doctor costs in Oregon vary by provider, treatment type, and whether insurance is accepted. Many practitioners offer free consultations. Use BestDosage to compare pricing transparency across providers.
What should I look for in a functional medicine doctor?
Look for verified credentials, high patient review scores, transparent pricing, and relevant specializations. BestDosage evaluates all of these factors in its BDS scoring methodology so you can compare providers at a glance.
Which cities in Oregon have the most functional medicine doctors?
The top cities for functional medicine doctors in Oregon include Portland (19), Eugene (4), Hillsboro (1).
Does insurance cover functional medicine doctor visits in Oregon?
Insurance coverage for functional medicine doctor visits varies by plan and state. Some providers accept insurance directly, while others offer superbills for out-of-network reimbursement. Check individual practitioner profiles on BestDosage for insurance details.
Is it free to find a functional medicine doctor on BestDosage?
Yes, browsing the directory, viewing profiles, and comparing providers is completely free. Our scoring methodology is published openly for full transparency.
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Reviewed by Chad Waldman, Analytical Chemist · BestDosage Editorial Team · Last updated May 2026