NPPES file of Aug 9, 2026

Doctors and health care providers in Williston, ND

611 individual NPPES records list a practice address in Williston, 8th of 82 North Dakota cities. The largest group is case manager/care coordinator: 72, 12% of the city's records, against 7% across North Dakota. Page 9 of 13.

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

Williston in North Dakota

  • Rank in North Dakota8th of 82 cities by records
  • Share of the state2.8% of North Dakota's records
  • Specialties present25 or more taxonomy codes
  • Top three groups26.4% of all records
  • Case Manager/Care Coordinator rank8th of the 10 North Dakota cities with the most

Compared with North Dakota as a whole, Williston has 4.2× the state's share of physical therapy assistant records and 0.50× its share of registered nurse records.

Providers in Williston, alphabetically

  1. Kynzie Oliver, PACPhysician Assistant1346799400
  2. Colleen OlsonCounselor1932703709
  3. Mark Olson, MDFamily Medicine Physician1023182110
  4. Vikki OlsonSchool Psychologist1427872761
  5. Dennis Omvig, LSWSocial Worker1033257944
  6. Jillian Orth, FNPFamily Nurse Practitioner1619620267
  7. Christi Osborn, LSWSocial Worker1568611952
  8. Marcia Oster, OTROccupational Therapist1700918976
  9. Joan OthomasCase Manager/Care Coordinator1700332046
  10. Priscilla Otto, RNRegistered Nurse1164191888
  11. Jamie Overland, PTPhysical Therapist1215069463
  12. Sydnee OvertonPhysician Assistant1336020106
  13. Brenda Owen, LAC, LICSWClinical Social Worker1346542727
  14. Kristin PachecoSpeech-Language Pathologist1447424874
  15. Marina PachuiloCase Manager/Care Coordinator1205389160
  16. Lara Packard, BSNDiabetes Educator Registered Nurse1215746219
  17. Jeong Eun ParkPharmacist1831634054
  18. Kia Patten, MS, CCC-SLPSpeech-Language Pathologist1811400799
  19. Leslie PattersonMassage Therapist1104791490
  20. Dana PaynePersonal Care Attendant1073458543
  21. Jana Pearson, SLPSpeech-Language Pathologist1578995296
  22. Khylle Pelmyr Pepino, PTPhysical Therapist1538874276
  23. Heather Perkins, PTAPhysical Therapy Assistant1720491665
  24. Alison PetersonCase Manager/Care Coordinator1962873752
  25. Bailey PetersonPharmacist1720767585
  26. Donna Peterson, LCSWClinical Social Worker1346792256
  27. Jennifer Peterson, RPHPharmacist1861792970
  28. Linea PetersonPersonal Care Attendant1679381651
  29. Lisa Peterson, PA-CSurgical Physician Assistant1619156411
  30. Lynn Peterson, RPHPharmacist1316355472
  31. Oriana PetersonSocial Worker1295201606
  32. Tamara Philpot, RDRegistered Dietitian1629311766
  33. Ashley PierceAddiction (Substance Use Disorder) Counselor1598583593
  34. Randolph Pitzer, DDSGeneral Practice Dentistry1518059484
  35. Jessi PolkRegistered Nurse1962252338
  36. Sheila Ponzio, MDPediatrics Physician1992742381
  37. Priscilla PorthenCase Manager/Care Coordinator1225409154
  38. Connie PowellPersonal Care Attendant1780258582
  39. Karalynne Price, PHARMDPharmacist1669806972
  40. Bruce Pugatch, MDInternal Medicine Physician1700862232
  41. Ronald Qualley, LACAddiction (Substance Use Disorder) Counselor1174609671
  42. Jennifer Qualm, OTDOccupational Therapist1649903667
  43. Karen Quick, LSWSocial Worker1457438202
  44. Kerry Raghib, CNM, MSNAdvanced Practice Midwife1649217043
  45. June RalphCase Manager/Care Coordinator1356846042
  46. Yolanda RamalhoMental Health Counselor1225419849
  47. Hannah Rasmussen, M.S. CCC-SLPSpeech-Language Pathologist1033783873
  48. Rebecca Rasmussen, O.D.Optometrist1306171483
  49. Mark Raymond, MDOphthalmology Physician1649249723
  50. Frank Reck, LACAddiction (Substance Use Disorder) Counselor1710655170

The largest North Dakota cities

  1. Fargo7,209
  2. Bismarck3,669
  3. Grand Forks2,524
  4. Minot1,888
  5. Dickinson719

All of North Dakota →

How to read this directory

Williston, North Dakota appears in the CMS National Plan and Provider Enumeration System with 611 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 Williston - 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 Williston 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 Williston is weighted toward Case Manager/Care Coordinator (72 clinicians, followed by Social Worker with 46 and Personal Care Attendant with 43). 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 North Dakota's population, Williston reports roughly 77.9 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 North Dakota's most common specialties, Behavior Technician is the most prominent one with no provider currently listing a Williston practice address, a coverage gap Williston patients typically fill by traveling to a larger nearby hub.

For Williston 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 Williston, ND?

There are 611 registered healthcare providers in Williston, ND, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Williston?

The most common specialties in Williston are Case Manager/Care Coordinator, Social Worker, Personal Care Attendant, Speech-Language Pathologist, Physical Therapist. Case Manager/Care Coordinator has the most providers with 72.

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.