NPPES file of Aug 9, 2026

Doctors and health care providers in Lake Oswego, OR

1,377 individual NPPES records list a practice address in Lake Oswego, 19th of 171 Oregon cities. The largest group is massage therapist: 142, 10% of the city's records, against 5% across Oregon. Page 5 of 28.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Lake Oswego

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Lake Oswego in Oregon

  • Rank in Oregon19th of 171 cities by records
  • Share of the state1.1% of Oregon's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27% of all records
  • Massage Therapist rank8th of the 10 Oregon cities with the most

Compared with Oregon as a whole, Lake Oswego has 2.7× the state's share of clinical psychologist records and 0.56× its share of registered nurse records.

Providers in Lake Oswego, alphabetically

  1. Li Chen, LACAcupuncturist1215403472
  2. Guifen Cheng, LACAcupuncturist1710305214
  3. Yahui ChengMassage Therapist1891996369
  4. Karen Chenier, LPCMental Health Counselor1639789258
  5. James Chesnutt, MDSports Medicine (Family Medicine) Physician1043225543
  6. Pei Wen Chiang, PHD, FACMGMedical Geneticist (PhD) Specialist/Technologist1205387321
  7. Lenon Chichetu, RPHPharmacist1053762096
  8. Michael Choate, P.T.Physical Therapist1972571511
  9. Alina Chobu, LMTMassage Therapist1770035669
  10. Allison Christianson, LCSWClinical Social Worker1225692999
  11. Natalie ChvirovFamily Nurse Practitioner1134542913
  12. Jennifer Cicilian, ND, LACNaturopath1104140391
  13. Rachel Cisco, PTAPhysical Therapy Assistant1023664943
  14. Diana Clark, LCSW MSW MA DMINClinical Social Worker1598736035
  15. Joseph Clark, LMTMassage Therapist1821217738
  16. Kylie ClarkBehavior Technician1073267506
  17. Mackenzie Clark, NDNaturopath1003531666
  18. Katherine ClevelandMental Health Counselor1942856588
  19. Kevin CliftonBehavior Technician1144954918
  20. Lorena Cline, PA-CPhysician Assistant1457531147
  21. Kayley ClothierMental Health Counselor1457086068
  22. Richard Cohen, M.D.Psychiatry Physician1750377867
  23. Stewart Cole, DODiagnostic Radiology Physician1033280870
  24. Brian Coleman, PTPhysical Therapist1053768465
  25. Susan Colemer, A-GNP-CNurse Practitioner1720787203
  26. Loriann CollepardiMental Health Counselor1154688802
  27. Kellie CollinsMental Health Counselor1114265840
  28. Michelle CollinsHealth & Wellness Coach1659299600
  29. Isamar Conde NegronMental Health Counselor1518513746
  30. Rachael Cone, L.M.T.Massage Therapist1275856783
  31. Edward Conrad, M.D.Internal Medicine Physician1396766796
  32. Edwin ContaInterpreter1932776994
  33. Jessica Conwell, PSY.D.Clinical Psychologist1275681629
  34. Christine Cook, DCChiropractor1427278068
  35. Erin Cook, PSYDClinical Psychologist1922388750
  36. Barbara Cope, MSWClinical Social Worker1497160329
  37. Lauren Corder, M.A.Mental Health Counselor1972706539
  38. David Corey, PH.D., ABPPForensic Psychologist1104909894
  39. Jennifer Cork, LCSWClinical Social Worker1982008579
  40. Megan Cormier Castaneda, PSYDPsychologist1174864102
  41. Danielle Cornelius, D.C.Chiropractor1255625794
  42. Lorreine CorotanOccupational Therapist1356198105
  43. James Corstorphine, DCChiropractor1972961209
  44. Austin CoryMassage Therapist1235560293
  45. Hilary Costello, N.D.Naturopath1942322441
  46. Morgan Costley, LMTMassage Therapist1568730075
  47. Chris CottelBehavior Analyst1477921765
  48. Amber Cottrell, MAMental Health Counselor1558634071
  49. Cheryl Couch, LMTMassage Therapist1295052488
  50. Johanna Courtleigh, M.A., L.P.C.Professional Counselor1063536258

The largest Oregon cities

  1. Portland42,088
  2. Eugene8,239
  3. Salem6,700
  4. Bend5,313
  5. Medford4,542

All of Oregon →

How to read this directory

Lake Oswego, Oregon appears in the CMS National Plan and Provider Enumeration System with 1,377 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Lake Oswego - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Lake Oswego practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Lake Oswego is weighted toward Massage Therapist (142 clinicians, followed by Mental Health Counselor with 139 and Behavior Technician with 91). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Oregon's population, Lake Oswego reports roughly 32.5 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of Oregon's most common specialties, Counselor is the most prominent one with no provider currently listing a Lake Oswego practice address, a coverage gap Lake Oswego patients typically fill by traveling to a larger nearby hub.

For Lake Oswego patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Lake Oswego, OR?

There are 1,377 registered healthcare providers in Lake Oswego, OR, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Lake Oswego?

The most common specialties in Lake Oswego are Massage Therapist, Mental Health Counselor, Behavior Technician, Physical Therapist, Clinical Social Worker. Massage Therapist has the most providers with 142.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.