NPPES file of Aug 9, 2026

Doctors and health care providers in Clackamas, OR

2,098 individual NPPES records list a practice address in Clackamas, 12th of 171 Oregon cities. The largest group is pharmacist: 125, 6% of the city's records, against 3% across Oregon. Page 22 of 42.

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

Clackamas in Oregon

  • Rank in Oregon12th of 171 cities by records
  • Share of the state1.7% of Oregon's records
  • Specialties present25 or more taxonomy codes
  • Top three groups15.3% of all records
  • Pharmacist rank5th of the 10 Oregon cities with the most

Compared with Oregon as a whole, Clackamas has 28.3× the state's share of registered respiratory therapist records and 0.20× its share of mental health counselor records.

Providers in Clackamas, alphabetically

  1. Noel Lee, MDGastroenterology Physician1043483779
  2. Nora Lee, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1649715947
  3. Raymond Lee, DOFamily Medicine Physician1578559951
  4. Rebecca Lee, MDCardiovascular Disease Physician1851895445
  5. Shannon Lee, MS, CF-SLPSpeech-Language Pathologist1760038640
  6. Wai Lee, M.D.Anesthesiology Physician1104928084
  7. Melissa Leedle, MDFamily Medicine Physician1750647434
  8. Andre Leger, M.D.Surgery Physician1932292299
  9. Katherine Leggett, EFDA EFODADental Assistant1053612143
  10. Salam Lehrfeld, DOEmergency Medical Services (Emergency Medicine) Physician1528224722
  11. Mith Leng, M.D.Family Medicine Physician1457306458
  12. Marsha Leonard, M.F.T.Marriage & Family Therapist1154345171
  13. Nicholas Leonard, M.D.Emergency Medicine Physician1003929787
  14. Krista Leong, RPHPharmacist1831411362
  15. Robert Leontyev, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1407604739
  16. Mai Leopold, DOFamily Medicine Physician1649234915
  17. Dillon LesieurStudent in an Organized Health Care Education/Training Program1033081179
  18. Tracey Leslie, MSPTPhysical Therapist1407968118
  19. Nancy LeungPharmacist1144491432
  20. Matthew LevyPeer Specialist1922940188
  21. Brant Lewis, P.T.Physical Therapist1306911300
  22. Gerald Lewis, RNRegistered Nurse First Assistant1851543565
  23. Linda Lewis, MDInternal Medicine Physician1801037890
  24. Larry Lewman, M.D.Anatomic Pathology Physician1083947113
  25. Alvin Li, MDAnesthesiology Physician1023113149
  26. Lin Juan Li, PA-CPhysician Assistant1255066130
  27. Azeb Libase, RNGeneral Practice Registered Nurse1275364713
  28. Marcia LibersonSocial Worker1437494101
  29. Michael Lichtenberg, M.A., MCFT, QMHPMarriage & Family Therapist1487946133
  30. Kenneth Lie, MDAnesthesiology Physician1538277595
  31. Stephen Lieberman, M.D.Urology Physician1841306925
  32. Jeffrey Liebo, M.D.Pediatrics Physician1831132414
  33. Allegra Liedtke, MSSpeech-Language Pathologist1215311246
  34. Jeffrey Lillie, PHARM DPharmacist1184924532
  35. Claudio Lima, P.A.Medical Physician Assistant1477685022
  36. Megan Linde, LCSWClinical Social Worker1235331539
  37. Olivia Linney, MDEmergency Medicine Physician1730596099
  38. Kasara Lintner, LMTMassage Therapist1659166528
  39. Allison Lipnick, LCSWClinical Social Worker1861837262
  40. Christina Lippert, CRNACertified Registered Nurse Anesthetist1205115037
  41. Frank Lippy, M.D.Emergency Medicine Physician1669586822
  42. Julie Littwin, D.O.Emergency Medicine Physician1528446523
  43. Annie Liu, M.D.Obstetrics & Gynecology Physician1154615300
  44. Vivian Liu, CNMAdvanced Practice Midwife1679806574
  45. Yun-Sheen Liu, M.D.Anesthesiology Physician1245436310
  46. Diane Llewellyn, COTAOccupational Therapy Assistant1336300821
  47. Clee Lloyd, MDOtolaryngology Physician1437222460
  48. Thomas Lloyd, CNMAdvanced Practice Midwife1063513091
  49. Elsbeth Lo, MDFamily Medicine Physician1316280225
  50. Kana LockhartMassage Therapist1790634335

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

Clackamas, Oregon appears in the CMS National Plan and Provider Enumeration System with 2,098 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 Clackamas - 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 Clackamas 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 Clackamas is weighted toward Pharmacist (125 clinicians, followed by Internal Medicine Physician with 101 and Emergency Medicine Physician with 94). 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, Clackamas reports roughly 49.6 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 Clackamas practice address, a coverage gap Clackamas patients typically fill by traveling to a larger nearby hub.

For Clackamas 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 Clackamas, OR?

There are 2,098 registered healthcare providers in Clackamas, OR, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Clackamas?

The most common specialties in Clackamas are Pharmacist, Internal Medicine Physician, Emergency Medicine Physician, Certified Registered Nurse Anesthetist, Family Medicine Physician. Pharmacist has the most providers with 125.

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.