NPPES file of Aug 9, 2026

Doctors and health care providers in Spencer, IA

346 individual NPPES records list a practice address in Spencer, 23rd of 215 Iowa cities. The largest group is addiction (substance use disorder) counselor: 28, 8% of the city's records, against 2% across Iowa. Page 7 of 7.

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

Spencer in Iowa

  • Rank in Iowa23rd of 215 cities by records
  • Share of the state0.7% of Iowa's records
  • Specialties present25 or more taxonomy codes
  • Top three groups21.1% of all records
  • Addiction (Substance Use Disorder) Counselor rank10th of the 10 Iowa cities with the most

Compared with Iowa as a whole, Spencer has 4× the state's share of addiction (substance use disorder) counselor records.

Providers in Spencer, alphabetically

  1. Susan Terrell, ARNPFamily Nurse Practitioner1447230081
  2. John Thomas, MPTPhysical Therapist1497947915
  3. Yelena Thomas, D.O.Family Medicine Physician1437681152
  4. Courtney Thompson, ARNPNurse Practitioner1316722366
  5. Troy Thompson, PHARMDPharmacist1386843613
  6. Jolyn Threlkeld, ARNP, FNP-BCFamily Nurse Practitioner1588257695
  7. Tom Throckmorton, M.D.Surgery Physician1083671689
  8. Kristen TriplettMental Health Counselor1063362101
  9. Amber Utesch, LMSWSocial Worker1881351047
  10. Holly Valentine, TLMHCMental Health Counselor1467331983
  11. Kari Van Dam, LMHCMental Health Counselor1750940573
  12. Carla Van Holsteijn, RD/LDRegistered Dietitian1821376500
  13. Linda Van-Putten, CADCAddiction (Substance Use Disorder) Counselor1205386869
  14. Kayla VanderhoffNurse Practitioner1922642552
  15. Doug Vanhofwegen, DDSGeneral Practice Dentistry1558440172
  16. Gary Vanhofwegen, DDSGeneral Practice Dentistry1073692661
  17. Andrew Vanommeren, B.A.Addiction (Substance Use Disorder) Counselor1447796719
  18. Megan Vanotterloo, MSN, ARNP, FNP-CNurse Practitioner1720401961
  19. John Vaubel, M.D.Ophthalmology Physician1134117468
  20. Genelle Vermeer, CADCAddiction (Substance Use Disorder) Counselor1548710106
  21. Ruth Vetter, OTR/LOccupational Therapist1114189107
  22. Jonathan WalburgChiropractor1700259215
  23. Anna Waldner, PMHNPFamily Nurse Practitioner1518383728
  24. Sandra Walker-Lee, NURSE PRACTITIONERPsychiatric/Mental Health Nurse Practitioner1912338633
  25. Emily Walton, ARNPFamily Nurse Practitioner1902689763
  26. Mandi Ward, DPTPhysical Therapist1871871566
  27. Jordon WeidemanMarriage & Family Therapist1841665882
  28. Jamie Westerman Billings, ARNPFamily Nurse Practitioner1235229816
  29. Kelly Westervelt, MSPTPhysical Therapist1912190984
  30. Daniel WestphalRegistered Nurse1992163869
  31. Larry Westphal, CRNACertified Registered Nurse Anesthetist1720053424
  32. Briana Wetrich, PA-CPhysician Assistant1467821116
  33. Elle-Shante Whalen, M.S., L.M.H.CMental Health Counselor1740635689
  34. Kimberly Whisenant, NPPediatric Nurse Practitioner1205051208
  35. Angie Wigen, COTA/LOccupational Therapy Assistant1508331877
  36. Barbara Wilkerson, ARNPNurse Practitioner1831186469
  37. Janette Willison, LMSWMental Health Counselor1407179906
  38. Brian Wilson, D.O.Gynecology Physician1871572404
  39. Amanda Winterboer, ODOptometrist1154634780
  40. Travis Witt, M.D.Family Medicine Physician1124344833
  41. Emma Wolf, DDSDentist1942041793
  42. Amanda Young, DOFamily Medicine Physician1366553893
  43. Allyson ZahmMental Health Counselor1508642679
  44. Chelsea ZaragozaMental Health Counselor1124771324
  45. Gary Zeutenhorst, MSW, LISWClinical Social Worker1457339483
  46. Dennis ZylstraChiropractor1134192263

The largest Iowa cities

  1. Iowa City7,163
  2. Des Moines5,538
  3. Cedar Rapids2,949
  4. West Des Moines2,201
  5. Davenport2,058

All of Iowa →

How to read this directory

Spencer, Iowa appears in the CMS National Plan and Provider Enumeration System with 346 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 Spencer - 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 Spencer 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 Spencer is weighted toward Addiction (Substance Use Disorder) Counselor (28 clinicians, followed by Mental Health Counselor with 23 and Pharmacist with 22). 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 Iowa's population, Spencer reports roughly 10.8 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.

For Spencer 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 Spencer, IA?

There are 346 registered healthcare providers in Spencer, IA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Spencer?

The most common specialties in Spencer are Addiction (Substance Use Disorder) Counselor, Mental Health Counselor, Pharmacist, Social Worker, Physical Therapist. Addiction (Substance Use Disorder) Counselor has the most providers with 28.

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.