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 8 of 11.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Johnston

  1. Speech-Language Pathologist100
  2. Occupational Therapist66
  3. Physical Therapist45
  4. Chiropractor33
  5. Mental Health Counselor32
  6. Behavior Technician28
  7. Clinical Social Worker25
  8. Behavior Analyst24

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 Prettyman, LMSWClinical Social Worker1073098208
  2. Colin Priest, LMHC, LMT, CRCMental Health Counselor1851171524
  3. Laura Probasco, LISWClinical Social Worker1639650344
  4. Karla Prosperi, LMTMassage Therapist1558709667
  5. Jordan PulliamOccupational Therapist1871960237
  6. Katie Purcell, PT, DPTPediatric Physical Therapist1275924599
  7. Sonu Puri-HansenPharmacist1033235551
  8. Chloe Rains, M.S., CCC-SLPSpeech-Language Pathologist1245986686
  9. Alicia Rasmussen, PT, DPTPhysical Therapist1902241938
  10. Richard Reay, DDSGeneral Practice Dentistry1073728283
  11. Aaron Rector, D.C.Chiropractor1922238211
  12. Alexandra ReederBehavior Technician1205664380
  13. Erin ReidOccupational Therapist1871712786
  14. Thomas Reis, C.P.Specialist1063432029
  15. Cynthia Reitz, LISWClinical Social Worker1528722626
  16. Michelle Rembert, PTPhysical Therapist1841453917
  17. Mallory RennerOccupational Therapist1578271706
  18. Kate Reynolds, DPTPhysical Therapist1356561732
  19. Pamela Reynolds, PTPhysical Therapist1477598498
  20. Gary Richards, D.C.Chiropractor1568531507
  21. Suzanne Richards, PHDPsychologist1114232030
  22. Allison Ridgway, DCChiropractor1912642257
  23. Alicia Riffle, PTAPhysical Therapy Assistant1811549124
  24. Jennifer RippergerPhysical Therapist1407214422
  25. Hanna Risse, OTD, OTR/LOccupational Therapist1073395034
  26. Eileen Robb, MDInternal Medicine Physician1235173352
  27. Sarah RobyGeneral Practice Dentistry1154536316
  28. Megan Rock Inman, DCChiropractor1649122631
  29. Rachel Rodawig, M.A., CF-SLPSpeech-Language Pathologist1437548104
  30. Mary RodriguezOccupational Therapist1659761534
  31. Leslie Rogers, MS, CCC-SLPSpeech-Language Pathologist1902096910
  32. Chad Rohlfsen, D.C.Chiropractor1689766263
  33. Megan Roome, MSPSpeech-Language Pathologist1104404730
  34. Madison Routier, STSpeech-Language Pathologist1538753231
  35. Abbie Ruisch, DOFamily Medicine Physician1003817073
  36. Madeline Running, LMSWSocial Worker1972097442
  37. Amanda Rupe, MSSpeech-Language Pathologist1528791282
  38. John RyanPharmacist1841575537
  39. Luke Ryan, PA-CPhysician Assistant1255034120
  40. Nicole Ryan, P.T.Physical Therapist1699811679
  41. Jenise Rychnovsky, LMHCMental Health Counselor1669728606
  42. Elizabeth SanchezOccupational Therapist1598599862
  43. Gabrielle Sandberg, D.C.Chiropractor1558457291
  44. Dorris Sanden, OTOccupational Therapist1699960948
  45. Nathan Sanders, DPTPhysical Therapist1932943925
  46. Mohammedhasan Sarawan, M.B., B.S.Internal Medicine Physician1174733695
  47. Charles SaundersMental Health Counselor1205658267
  48. Bobbi Schaben, MOTR-LOccupational Therapist1396958906
  49. Nicole ScharnSpeech-Language Pathologist1023732450
  50. Leora Scherz, MS, CCC-SLPSpeech-Language Pathologist1235380932

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.