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 6 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. Brent Liebert, M.D.Family Medicine Physician1720078421
  2. Josephine Lies, RBT, BCBABehavior Analyst1154036796
  3. Nicole Lokenvitz, DPTPhysical Therapist1659603603
  4. Tricia Lorber, D.C.Chiropractor1972500890
  5. Molly LorenceSpeech-Language Pathologist1811738560
  6. Mary LotheMental Health Counselor1265073308
  7. Gwen Lovell Kollath, DCChiropractor1386780732
  8. Nathan LucsPhysical Therapist1114538261
  9. Tiana MaierSpeech-Language Pathologist1366018392
  10. Stephanie Main, RPHPharmacist1609993070
  11. Danielle Malatek, DNP, PMHNP-BC, AGCNSPsychiatric/Mental Health Nurse Practitioner1699144642
  12. Keeleigh Malchow, MSOT, OTR/LOccupational Therapist1043881519
  13. Megan ManningSpeech-Language Pathologist1376900969
  14. Hannah Martin, M.S., CCC-SLPSpeech-Language Pathologist1902378086
  15. Rebekah MartinBehavior Technician1326999640
  16. Elizabeth Mathews, MA, CCC-SLPSpeech-Language Pathologist1831305614
  17. Kathleen McCabeOccupational Therapist1346749561
  18. Becky McCarl, RDHDental Hygienist1508648312
  19. Rebecca McClellan, MA, OTR/LOccupational Therapist1659863488
  20. Tyler McCormick, DCChiropractor1962037895
  21. Kaitlyn McDonaldMental Health Counselor1770092926
  22. Brianna McDonough, SLPSpeech-Language Pathologist1902472368
  23. Karlin McGarvey, M.S. CF-SLPSpeech-Language Pathologist1730053133
  24. Kathleen McGreal-Mitchell, OT/LOccupational Therapist1376146944
  25. Molly McGreal-Stence, OT/LGerontology Occupational Therapist1457960841
  26. Elaine McKiness, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1780406892
  27. Tseday McMurrayBehavior Technician1598616815
  28. Lesile MentelePharmacist1205105855
  29. Alesha Merz, MOTR/L, CBIS, ITOTOccupational Therapist1699269944
  30. Scott Meyer, MDFamily Medicine Physician1366433310
  31. Gatwech MiakBehavior Analyst1962390328
  32. Virginia Michael, OTROccupational Therapist1265069124
  33. Antoinette Mielke, BCBABehavior Analyst1265191092
  34. Casey Miller, LMSWClinical Social Worker1891148193
  35. Kristen MillsSpeech-Language Pathologist1972046472
  36. Hallee MingusSpeech-Language Pathologist1396581955
  37. Kyla Moffitt, SLP-CFSpeech-Language Pathologist1306079942
  38. Erin Mohr, ARNPNurse Practitioner1912550328
  39. McKenzie Mok, MA, CCC-SLPSpeech-Language Pathologist1548503196
  40. Emily Monahan, OTR/LOccupational Therapist1891045910
  41. Cheryl Moore, LMHCMental Health Counselor1114738648
  42. Kristin Moore, LMSWClinical Social Worker1629674064
  43. Lynn MooreMental Health Counselor1326224486
  44. Rosa Morales, BCBABehavior Analyst1629796016
  45. Katrina Moreland, PTPhysical Therapist1932226461
  46. Alyssa Morrissey, M.A. CF-SLPSpeech-Language Pathologist1376422246
  47. Lane Moser, M.D., M.P.H.Pediatric Hospice and Palliative Medicine Physician1508247990
  48. Whitney Muehleisen, BCBABehavior Analyst1043829617
  49. Kay MulbahRegistered Nurse1699535369
  50. Jill Mullen, DPTPhysical Therapist1346548864

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.