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 24 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. Rosalina Manzon, CRNACertified Registered Nurse Anesthetist1821193210
  2. Leonard Marcel, M.D.Psychiatry Physician1649383563
  3. Kristina Marchand, M.D.Hospice and Palliative Medicine (Family Medicine) Physician1730393570
  4. Peter Marcovici, M.D.Diagnostic Radiology Physician1356540314
  5. Kylie Markarian, PHARMDPharmacist1326578238
  6. Brian Markey, M.D.Diagnostic Radiology Physician1295832988
  7. Daniel Markowski, MDInternal Medicine Physician1184155335
  8. Alexander Marsh, MDEmergency Medical Services (Emergency Medicine) Physician1013990555
  9. Peter Marsh, MDOphthalmology Physician1629081435
  10. Barbara Marshall, LCSW, LICSWClinical Social Worker1457438111
  11. Ali Martin, RNCritical Care Medicine Registered Nurse1154293967
  12. Jo Martin, MDDermatology Physician1013142116
  13. Taylor Martin, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1255850434
  14. Terri Martin, LMTSpecialist1265644884
  15. Melissa MartutartusRegistered Dietitian1407362304
  16. Kellen Martyn, CRNACertified Registered Nurse Anesthetist1255637237
  17. Nada Marvin, RPHPharmacist1205113800
  18. Whitney Marx, PA-CSurgical Physician Assistant1417735952
  19. Julie Maslen-Duvall, MPTPhysical Therapist1902976319
  20. Jocelyn Mason, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1881225241
  21. Katharine Mason-Ellis, PA-CPhysician Assistant1174047393
  22. Lawrence Matthews, CRNA, MSCertified Registered Nurse Anesthetist1376659532
  23. Jennifer Mattson, M.D.Cardiovascular Disease Physician1023496700
  24. Karen Maury, MDEmergency Medicine Physician1528152071
  25. Sharon Maxey, NPAcute Care Nurse Practitioner1023120672
  26. Lindsey Mayo, P.T., D.P.T.Physical Therapist1386870806
  27. Ann Mazurik, MA/CCC-SLPSpeech-Language Pathologist1639324296
  28. Wilder McAndrewsPharmacist1962872911
  29. Michele McCallum, M.D.Internal Medicine Physician1922103092
  30. Cameron McCarthy, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1588965602
  31. Danielle McClanahan, M.D.Dermatology Physician1851880876
  32. Olivia McClelland, LCSWClinical Social Worker1316235757
  33. Noami McClure, M.D.Emergency Medicine Physician1104089754
  34. Brenda McCool, N.D.Naturopath1972636678
  35. Donald McCorkelPhysician Assistant1346639440
  36. Erin McCormackDental Assistant1588137459
  37. Starla McCullar, LCSWClinical Social Worker1154570489
  38. Mark McCurdy, PTPhysical Therapist1417939364
  39. Allison McDaniel, QMHA-RCase Manager/Care Coordinator1730700774
  40. Imuya McDaniel, LMTMassage Therapist1679998330
  41. Emily McDowell, MDEmergency Medicine Physician1952981565
  42. Shelby McFarland, PMHNPPsychiatric/Mental Health Nurse Practitioner1164383790
  43. Marissa McGurr, PT, DPTPhysical Therapist1902516438
  44. Nicholas McHugh, PA-CPhysician Assistant1558842773
  45. David McKay, PHARM.D.Pharmacist1821335126
  46. Savannah McKeeBehavior Technician1245824754
  47. Rebekah McKennaCounselor1710733035
  48. Mark McLain, O.D.Optometrist1356446900
  49. Cori McLaren, R.PH.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1639329907
  50. Jaclyn McLaughlin, MSN, FNP-CFamily Nurse Practitioner1861009060

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.