NPPES file of Aug 9, 2026

Doctors and health care providers in Greenfield, IA

31 individual NPPES records list a practice address in Greenfield, 127th of 215 Iowa cities. The largest group is physical therapist: 5, 16% of the city's records, against 6% across Iowa.

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

The 8 largest groups in Greenfield

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

Greenfield in Iowa

  • Rank in Iowa127th of 215 cities by records
  • Share of the state<0.1% of Iowa's records
  • Specialties present16 taxonomy codes
  • Top three groups38.7% of all records
  • Physical Therapist rank11th of the 10 Iowa cities with the most

Providers in Greenfield, alphabetically

  1. David Black, PAPhysician Assistant1801074794
  2. Marvel Blazek, ARNPFamily Nurse Practitioner1275587701
  3. Brittany ChristoffersenOccupational Therapist1710647599
  4. Jenna Evans, PA-CPhysician Assistant1659819233
  5. Ryan Frost, DDSGeneral Practice Dentistry1487146338
  6. Traci Goltz, DPTPhysical Therapist1003224544
  7. Nicholas Grimoskas, PTPhysical Therapist1578939690
  8. Rachel Hall, PHARMDPharmacist1659838035
  9. Glen Hanson, MDEmergency Medicine Physician1710947130
  10. Tinneal Harris, CADCAddiction (Substance Use Disorder) Counselor1740907039
  11. Brylie Hartman, PA-CPhysician Assistant1861157901
  12. Molly Hennigar, ARNPNurse Practitioner1417500364
  13. Verlin Hockett, D.D.S.Dentist1588757991
  14. Megan Huey, PAPhysician Assistant1376165340
  15. Timothy Jensen, D.C.Chiropractor1174615975
  16. Erin JohnsonDentist1386197564
  17. Staci Jones, MSRDLDRegistered Dietitian1508987819
  18. Paisley Kintigh, MPS,RDN, LD, ACSM-EPRegistered Dietitian1467382416
  19. Erin KnauerClinical Social Worker1861037756
  20. Richard Kohler, D.D.S.Dentist1497912638
  21. Bill Mather, RPHPharmacist1639104763
  22. Ronald NilesPhysical Therapy Assistant1376902353
  23. Demi O'Brien, MDFamily Medicine Physician1700409828
  24. Katherine Ohms, DPTPhysical Therapist1962773374
  25. Timothy Piearson, D.O.Family Medicine Physician1740233659
  26. Joshua Rardin, D.C.Chiropractor1417024365
  27. Lisa Rardin, D.C.Chiropractor1124152814
  28. Spencer Sabourin, DPTPhysical Therapist1063132389
  29. Robert WeilandOptometrist1659317865
  30. Ashley Williams, PT, DPTPhysical Therapist1518801158
  31. Mary Jo Ytzen, ARNPFamily Nurse Practitioner1588967269

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

Greenfield, Iowa appears in the CMS National Plan and Provider Enumeration System with 31 registered healthcare providers spanning 16 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Greenfield - 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 Greenfield 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 Greenfield is weighted toward Physical Therapist (5 clinicians, followed by Physician Assistant with 4 and Dentist with 3). 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, Greenfield reports roughly 1 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 Iowa's most common specialties, Mental Health Counselor is the most prominent one with no provider currently listing a Greenfield practice address, a coverage gap Greenfield patients typically fill by traveling to a larger nearby hub.

For Greenfield 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 Greenfield, IA?

There are 31 registered healthcare providers in Greenfield, IA, covering 16 specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Greenfield?

The most common specialties in Greenfield are Physical Therapist, Physician Assistant, Dentist, Chiropractor, Family Nurse Practitioner. Physical Therapist has the most providers with 5.

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.