NPPES file of Aug 9, 2026

Doctors and health care providers in Grafton, WI

459 individual NPPES records list a practice address in Grafton, 45th of 370 Wisconsin cities. The largest group is nurse practitioner: 50, 11% of the city's records, against 3% across Wisconsin. Page 4 of 10.

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

The 8 largest groups in Grafton

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

Grafton in Wisconsin

  • Rank in Wisconsin45th of 370 cities by records
  • Share of the state0.4% of Wisconsin's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27% of all records

Compared with Wisconsin as a whole, Grafton has 4× the state's share of anesthesiology physician records.

Providers in Grafton, alphabetically

  1. Christina Guenveur, DNP, CRNACertified Registered Nurse Anesthetist1689240400
  2. Ashwini Gundelly, M.D.Internal Medicine Physician1750310801
  3. Jason Gundrum, PHARMD.Pharmacist1285987628
  4. Paul Guzzetta, MDPulmonary Disease Physician1366415473
  5. Sheri Haberkorn, MASTERSOrthopedic Physical Therapist1427185339
  6. Sara Hackbarth, DMDDentist1821849845
  7. Angela Haendel, SLPSpeech-Language Pathologist1972925345
  8. Joseph HahnAddiction (Substance Use Disorder) Counselor1104011303
  9. Leslie Halverson, NPNurse Practitioner1740747211
  10. Rinya Hanna, MDHospitalist Physician1932660651
  11. Ingrid Hansen, DDSDentist1962207860
  12. Lolita Hansen, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1255010559
  13. Anne Harley, P.T.Physical Therapist1023047099
  14. Kimberly Harrison, M.A.CCC-SLPSpeech-Language Pathologist1497112122
  15. Kathryn Hayes, PTPhysical Therapist1740215136
  16. Madison HeitzMental Health Counselor1962332395
  17. Katie Henke, DNPNurse Practitioner1659727345
  18. Michael Hensien, MDAnesthesiology Physician1346294956
  19. Nihal Herath, MDNeurology Physician1972578466
  20. Mary Herian, R.N.Registered Nurse1609104876
  21. Augustin Hernandez, DOFamily Medicine Physician1023767415
  22. Maria Hillmer, APNPNurse Practitioner1598188138
  23. Summer Hoffman, APNP-CNurse Practitioner1548661572
  24. Jennifer Hohner, RNRegistered Nurse1518276138
  25. Brook Holmes, PT, DPT, OCSPhysical Therapist1811332612
  26. Taylor HolmesPhysical Therapist1205380656
  27. Trevor Holwell, PHARMDPharmacist1467708446
  28. Domingo Hong, MDInternal Medicine Physician1811915358
  29. Beatrice Hoolboom, MDInternal Medicine Physician1306877733
  30. Autumn HornCounselor1114761632
  31. Caleb HorvathStudent in an Organized Health Care Education/Training Program1942999099
  32. Matthew Howenstein, M.D.Vascular & Interventional Radiology Physician1548419336
  33. Mandy Howey, PC-ITMental Health Counselor1871962423
  34. Janice Hu, MDAnesthesiology Physician1346878659
  35. Jiahao Hu, MDVascular & Interventional Radiology Physician1902260433
  36. Lindsay Huffman, AG-ACNPNurse Practitioner1427536911
  37. Kristin Humpal, PA-CPhysician Assistant1558524868
  38. Dona Idt, CPHTPharmacy Technician1033509500
  39. Umbreen Iqbal, CAAAnesthesiologist Assistant1871482851
  40. Abdel Aziz Jaffan, M.D.Vascular & Interventional Radiology Physician1871799304
  41. Craig Jankuski, PTPhysical Therapist1710921507
  42. Andrew JavoroskiStudent in an Organized Health Care Education/Training Program1487411245
  43. Elizabeth Jonas, RNRegistered Nurse1275407843
  44. Jessie Jones, DMDDentist1184296527
  45. Paula Jones, MDInfectious Disease Physician1649210287
  46. Nusrat Kalloo, MDGeriatric Medicine (Internal Medicine) Physician1972557973
  47. Adam KaminskiOptician1063552719
  48. Amy Kappeler, D.C.Chiropractor1497023527
  49. Colleen Kasten, SACITAddiction (Substance Use Disorder) Counselor1205320462
  50. Samantha Kaufman, DPTPhysical Therapist1588073928

The largest Wisconsin cities

  1. Milwaukee18,389
  2. Madison15,014
  3. Green Bay4,619
  4. La Crosse3,735
  5. Appleton3,249

All of Wisconsin →

How to read this directory

Grafton, Wisconsin appears in the CMS National Plan and Provider Enumeration System with 459 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 Grafton - 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 Grafton 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 Grafton is weighted toward Nurse Practitioner (50 clinicians, followed by Physical Therapist with 41 and Physician Assistant with 33). 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 Wisconsin's population, Grafton reports roughly 7.8 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.

Of Wisconsin's most common specialties, Family Nurse Practitioner is the most prominent one with no provider currently listing a Grafton practice address, a coverage gap Grafton patients typically fill by traveling to a larger nearby hub.

For Grafton 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 Grafton, WI?

There are 459 registered healthcare providers in Grafton, WI, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Grafton?

The most common specialties in Grafton are Nurse Practitioner, Physical Therapist, Physician Assistant, Pharmacist, Professional Counselor. Nurse Practitioner has the most providers with 50.

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.