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 10 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. Madhusudhan Reddy, MDDiagnostic Radiology Physician1639389133
  2. Alissa ReepOccupational Therapist1568857522
  3. Taylor ReeseAddiction (Substance Use Disorder) Counselor1982419149
  4. Katrina Rehak, PHARMDPharmacist1679208862
  5. Tracy Reiner, DDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1710106166
  6. Ann ReinkeSchool Social Worker1861226631
  7. Catherine RevermanSocial Worker1972262780
  8. Garett Rhule, MDInternal Medicine Physician1972791259
  9. Lina Ricketts, DNP, CRNACertified Registered Nurse Anesthetist1508527755
  10. Kalie Rider, M.S., R.D.Registered Dietitian1205176138
  11. Tiah RigbyFamily Nurse Practitioner1669901591
  12. Karen Rinehart, DPMPodiatrist1124197728
  13. Andrew Rodenbough, CPSSPeer Specialist1285492884
  14. Kayla Rossland, PT, DPT, ATCPhysical Therapist1770904708
  15. Cassie Rothe, FNP-CFamily Nurse Practitioner1780314021
  16. Phillip Ruffalo, M.D.Surgery Physician1649252651
  17. Mattea RunionHomemaker1124883749
  18. Brett Running, D.A.O.M., E.A.M.P.Acupuncturist1760755078
  19. Lacey Rustad, LSWCase Manager/Care Coordinator1730509084
  20. Jane Rutledge, PTPhysical Therapist1770019630
  21. Doug Sala, OTROccupational Therapist1932231123
  22. Lizette SalasHomemaker1720780208
  23. Steven Salcido, M.D.Emergency Medicine Physician1053843771
  24. Sangeeta Samudre, R.PHPharmacist1841547510
  25. David Sandberg, RPHPharmacist1235449042
  26. Katelyn Sandberg, RNPsychiatric/Mental Health Registered Nurse1265178404
  27. Lyndi Sanders, LMSWSocial Worker1912504622
  28. Kelli SandvikPersonal Care Attendant1285526012
  29. Darrin Sanford, L.S.W.Social Worker1588899652
  30. Lisa SantoyoCase Manager/Care Coordinator1063926533
  31. Kayla Sauber, BACHELORS DEGREECase Manager/Care Coordinator1174803985
  32. Anya SceroPersonal Care Attendant1568068278
  33. Brenda SchaferSpeech-Language Pathologist1033416771
  34. Charell Schillo, LICSWClinical Social Worker1376653527
  35. Danielle Schmitt, RNPsychiatric/Mental Health Registered Nurse1477987493
  36. Joann Schmitz, LSWSocial Worker1255417713
  37. Kristine SchneiderSchool Psychologist1518790385
  38. Jacqueline Schwan, RN, BSNPsychiatric/Mental Health Registered Nurse1801220058
  39. Theresa Scully, LICSWClinical Social Worker1316485634
  40. Kelsey SederquestMedical Physician Assistant1053176057
  41. Ron Seeley, D.D.S.General Practice Dentistry1487882965
  42. Steven SellPharmacist1083920508
  43. Monica Sem, MS. OTR/LOccupational Therapist1649450453
  44. Camille Settelmeyer, FNP-CFamily Nurse Practitioner1437637501
  45. Salem Shahin, MDUrology Physician1578529392
  46. Katie Shannon, LCSWClinical Social Worker1295862621
  47. David ShellumPersonal Care Attendant1063387124
  48. Jennifer ShepherdCase Manager/Care Coordinator1316473341
  49. Ryan Siewert, MDFamily Medicine Physician1528355500
  50. Shelly SikesSocial Worker1982015202

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.