NPPES file of Aug 9, 2026

Doctors and health care providers in Johnston, IA

524 individual NPPES records list a practice address in Johnston, 18th of 215 Iowa cities. The largest group is speech-language pathologist: 100, 19% of the city's records, against 2% across Iowa. Page 7 of 11.

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

The 8 largest groups in Johnston

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Johnston in Iowa

  • Rank in Iowa18th of 215 cities by records
  • Share of the state1.1% of Iowa's records
  • Specialties present25 or more taxonomy codes
  • Top three groups40.3% of all records
  • Speech-Language Pathologist rank1st of the 10 Iowa cities with the most

Compared with Iowa as a whole, Johnston has 8.4× the state's share of speech-language pathologist records and 0.46× its share of family nurse practitioner records.

Providers in Johnston, alphabetically

  1. Heather Nadeau, MA, CCC/SLPSpeech-Language Pathologist1578863551
  2. Jeffrey Neighbors, O.D.Optometrist1386657641
  3. Grace NelsonSpeech-Language Pathologist1447843578
  4. Jennifer Nelson, OTR/LOccupational Therapist1841424447
  5. Lauren Nelson, M.A.Speech-Language Pathologist1437590817
  6. Samantha Ness, LMSWClinical Social Worker1750047205
  7. Tabitha Nicolaysen, LMFTMarriage & Family Therapist1861743304
  8. Megan NotermannBehavior Technician1902487986
  9. Tania NunoBehavior Technician1225753817
  10. Juliet O'Donnell, DCChiropractor1821042839
  11. Matthew Ochs, PHARM.D.Pharmacist1902189582
  12. Mary OlandeseSpeech-Language Pathologist1437660339
  13. Tyler Olson, MDFamily Medicine Physician1326575317
  14. Nicole OvertonBehavior Technician1699626911
  15. Sara Owen, ARNPFamily Nurse Practitioner1922511492
  16. Brittney OxleySpeech-Language Pathologist1841720596
  17. Kaycee Page, PTPhysical Therapist1639383284
  18. Kari Paige, RD, LDRegistered Dietitian1801288345
  19. Candice Palea, OTR/L, OTDOccupational Therapist1174003875
  20. Camielle Palmer, MPTPhysical Therapist1912114265
  21. Jayce Palmer, DCChiropractor1255270427
  22. Julie Palmer, CFY-SLPSpeech-Language Pathologist1174764773
  23. Meghan Palmer, OTR/LPediatric Occupational Therapist1780031161
  24. Jacob Parks, DCChiropractor1437804580
  25. David ParrPhysical Therapist1093293698
  26. Kyra Pastor, BCBABehavior Analyst1174317028
  27. Jillane Paul, R.PH.Pharmacist1588791354
  28. Allison Peel, DC, DACBRRadiology Chiropractor1902908676
  29. Jinxia PengFamily Nurse Practitioner1669088654
  30. Sarah Peshel, BCABAAssistant Behavior Analyst1740896620
  31. Sydney PeterBehavior Technician1073341152
  32. Michael Peters, PHARM.D.Pharmacist1134477136
  33. Jay Petersma, O.D.Optometrist1326148933
  34. Ashley Phelps, PT, DPTPhysical Therapist1851604706
  35. Kelsey PhillipsSpeech-Language Pathologist1710478565
  36. Sarah Phillips, MA, CF-SLPSpeech-Language Pathologist1578946299
  37. Yukio Phillips, PHARMDPharmacotherapy Pharmacist1649497611
  38. Natalie Piatt, MOTR/LOccupational Therapist1609303874
  39. Alex Pierce, D.C.Chiropractor1952019366
  40. Lindsay Plautz, MA CCC-SLPSpeech-Language Pathologist1336915107
  41. Dana Plew, DPMFoot & Ankle Surgery Podiatrist1285608323
  42. Skyler PlymaleBehavior Technician1255282570
  43. Kimberly PocwierzAssistive Technology Supplier Rehabilitation Counselor1609795376
  44. Tracey Pohlpeter, MA, CCC-SLPSpeech-Language Pathologist1306141486
  45. Natalie PolichPharmacist1760212641
  46. Tessa PollackSpeech-Language Pathologist1366831141
  47. Kristen Poore, PHARMDPharmacist1326325234
  48. Taylor PorterSpeech-Language Pathologist1972488278
  49. Walker Porterfield, DCChiropractor1336884717
  50. Mary Powell, OTR/LOccupational Therapist1184861759

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

Johnston, Iowa appears in the CMS National Plan and Provider Enumeration System with 524 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 Johnston - 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 Johnston 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 Johnston is weighted toward Speech-Language Pathologist (100 clinicians, followed by Occupational Therapist with 66 and Physical Therapist with 45). 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, Johnston reports roughly 16.3 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 Johnston 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 Johnston, IA?

There are 524 registered healthcare providers in Johnston, IA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Johnston?

The most common specialties in Johnston are Speech-Language Pathologist, Occupational Therapist, Physical Therapist, Chiropractor, Mental Health Counselor. Speech-Language Pathologist has the most providers with 100.

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.