NPPES file of Aug 9, 2026

Doctors and health care providers in Brookfield, WI

2,036 individual NPPES records list a practice address in Brookfield, 8th of 370 Wisconsin cities. The largest group is behavior technician: 179, 9% of the city's records, against 1% across Wisconsin. Page 27 of 41.

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

The 8 largest groups in Brookfield

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

Brookfield in Wisconsin

  • Rank in Wisconsin8th of 370 cities by records
  • Share of the state1.8% of Wisconsin's records
  • Specialties present25 or more taxonomy codes
  • Top three groups23.5% of all records
  • Behavior Technician rank3rd of the 10 Wisconsin cities with the most

Compared with Wisconsin as a whole, Brookfield has 6.2× the state's share of behavior technician records and 0.31× its share of nurse practitioner records.

Providers in Brookfield, alphabetically

  1. Daniel O'Connor, M.D.Occupational Medicine Physician1952478927
  2. Kristine O'Connor, MS, LPCCounselor1881940021
  3. Kiley OakleyMassage Therapist1316638505
  4. Amanda OaksPhysical Therapist1578866836
  5. Kayla OaksBehavior Technician1992552087
  6. Mark Obermyer, MDInternal Medicine Physician1669634820
  7. Marissa Oberstadt, DPMFoot & Ankle Surgery Podiatrist1124512199
  8. Alejandra Obiedat, PTPhysical Therapist1205510047
  9. Marie Obradovich, M.S., CCC-SLPSpeech-Language Pathologist1497030720
  10. Lori Obrien, R.N.Registered Nurse1366409401
  11. Olivia OddisClinical Social Worker1558217067
  12. Shannon Offerman, MDRadiation Oncology Physician1356520506
  13. Nicole OgdenBehavior Technician1578396412
  14. Catherine Olaciregui, SLPSpeech-Language Pathologist1649473976
  15. Maria Olafsson, LCSWClinical Social Worker1326069808
  16. Debbie Oldham, LCSW, CADC-DAddiction (Substance Use Disorder) Counselor1679669113
  17. Amy Olejnik, PTPhysical Therapist1811184161
  18. Kate Olinski, MS, OTROccupational Therapist1235832197
  19. Marisol OlivaBehavior Technician1043184989
  20. Kathryn Olsen, AU.D.Audiologist1003027210
  21. David Olson, M.D.Family Medicine Physician1871566349
  22. Emily Olson, LPCProfessional Counselor1023632635
  23. Jessica Olson, APNPFamily Nurse Practitioner1346764180
  24. Kaitlyn OlsonBehavior Technician1891539953
  25. Linda Olson, D.V.M.Veterinarian1770744849
  26. Sadoun Omari, M.D.Pediatrics Physician1013902121
  27. Janis Oppitz, ED.D, MA, PPS, NCSPCognitive & Behavioral Psychologist1366336075
  28. Emily Organ, APNPPrimary Care Nurse Practitioner1972248391
  29. Antonina Orlando, MS, OTROccupational Therapist1255507232
  30. Pamela OrlandowhiteOccupational Therapist1871072660
  31. Mary Ortell, OCCUPATIONAL THERAPIOccupational Therapist1023297975
  32. Amanda Orth, PTAPhysical Therapy Assistant1760956403
  33. Katie Ortman, PA-CPhysician Assistant1285267732
  34. John Ostergaard, M.D.Family Medicine Physician1578536090
  35. Paula Osterhout, M.D.Neonatal-Perinatal Medicine Physician1871814293
  36. Linda Otterbacher, PTAPhysical Therapy Assistant1356518260
  37. Abbigail Otto, OTRGerontology Occupational Therapist1255087292
  38. Judith Otto, LCSWClinical Social Worker1982611265
  39. Nicholas Overbaugh, LPCMental Health Counselor1184076754
  40. Laura Ozimek, PA-CPhysician Assistant1720215353
  41. Joheny Pabon Rios, MS-LPC-ITCounselor1710812268
  42. Cameron Paddison, APNPPrimary Care Nurse Practitioner1699627596
  43. Jill Paddock, OTOccupational Therapist1679723787
  44. Angela PagelOccupational Therapist1336840768
  45. Rolonda Palmer, NPNurse Practitioner1255609178
  46. Miranda PaltzerBehavior Technician1376321828
  47. Robin Palzewicz, LPC ITMental Health Counselor1548710338
  48. Ralph Pamenter, DDSGeneral Practice Dentistry1407873052
  49. Li Pan, LPNLicensed Practical Nurse1851642433
  50. Jordan Paniagua, LPCProfessional Counselor1912667775

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

Brookfield, Wisconsin appears in the CMS National Plan and Provider Enumeration System with 2,036 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 Brookfield - 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 Brookfield 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 Brookfield is weighted toward Behavior Technician (179 clinicians, followed by Physical Therapist with 157 and Professional Counselor with 142). 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, Brookfield reports roughly 34.4 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Brookfield practice address, a coverage gap Brookfield patients typically fill by traveling to a larger nearby hub.

For Brookfield 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 Brookfield, WI?

There are 2,036 registered healthcare providers in Brookfield, WI, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Brookfield?

The most common specialties in Brookfield are Behavior Technician, Physical Therapist, Professional Counselor, Occupational Therapist, Speech-Language Pathologist. Behavior Technician has the most providers with 179.

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.