Doctors and health care providers in Appleton, WI
3,249 individual NPPES records list a practice address in Appleton, 5th of 370 Wisconsin cities. The largest group is physical therapist: 202, 6% of the city's records, against 6% across Wisconsin. Page 42 of 65.
The 8 largest groups in Appleton
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Appleton in Wisconsin
- Rank in Wisconsin5th of 370 cities by records
- Share of the state2.8% of Wisconsin's records
- Specialties present25 or more taxonomy codes
- Top three groups16.9% of all records
- Physical Therapist rank4th of the 10 Wisconsin cities with the most
Compared with Wisconsin as a whole, Appleton has 1.9× the state's share of family nurse practitioner records and 0.57× its share of registered nurse records.
Providers in Appleton, alphabetically
- Timothy O'Connor, DCChiropractor1548362072
- Kristin O'Neill, RNRegistered Nurse1821769811
- Molly O'Neill, RNRegistered Nurse First Assistant1558492595
- Tenniele O'Reilly, P.T.Physical Therapist1407024433
- Kerry O'Sullivan, COTAOccupational Therapy Assistant1487074688
- Jennifer Oberg, DPTPhysical Therapist1003530700
- Patrick Obrien, MDCardiovascular Disease Physician1265427496
- Miles Obrigewitch, HISHearing Instrument Specialist1336013432
- Karel Ochs, MSClinical Exercise Physiologist1366716292
- Michael Oconnell, APNPFamily Nurse Practitioner1386070308
- Stephanie OconnellSpeech-Language Pathologist1780420182
- John Oestreicher, PHDPsychologist1619962024
- Susan Oestreicher, PH.D.Clinical Child & Adolescent Psychologist1821338815
- Matt Oetken, DOFamily Medicine Physician1528097680
- Stella Ofori-Sampong, M.D.Hospitalist Physician1275064834
- Stephani Oldenburg, RNRegistered Nurse1831787050
- Jennifer Olkowski, LPC, CADC IIIProfessional Counselor1992841795
- Rebecca Ollmann, MA LMFTMarriage & Family Therapist1710289954
- Kristine Olofson, RNRegistered Nurse1174265425
- David Olsen, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1205922861
- Adam Olson, M.D.Family Medicine Physician1235405176
- Andrea Olson, RNRegistered Nurse1134697972
- Bridget OlsonHealth Educator1538868286
- Cathy Olson, PTASpecialist1316068091
- Heather Olson, PTAPhysical Therapy Assistant1841561339
- Leah Olson, C.A.Acupuncturist1831522606
- Scott Olvey, MDOrthopaedic Surgery Physician1225035678
- Linda Onson, NPNurse Practitioner1750377024
- Ezrah Onyejide, MDStudent in an Organized Health Care Education/Training Program1255270617
- Stephan Opacich, RPHPharmacist1619313533
- Kathryn Opfer, APSWClinical Social Worker1285387142
- Karla OpheimPsychiatric Pharmacist1033841994
- Erin OpitzPhysical Therapy Assistant1144659483
- Claire OpsteenDental Hygienist1588596142
- Olabisi OresegunPharmacist1962141713
- Lindsay Orlowski, LCSWClinical Social Worker1366065989
- Allison OrzelPharmacist1629543053
- Alex Orzepowski, DDSDentist1669218731
- Walter Orzepowski, M.D.Anesthesiology Physician1669400669
- Norma Osborne, MDHospitalist Physician1710904784
- Roy Ostenson, D.C.Rehabilitation Chiropractor1235299751
- Rebecca Oszman, LATAthletic Trainer1861883316
- Nikki Ott, MS RD CDRegistered Dietitian1689719148
- Kenneth Otto, D.C.Chiropractor1770647521
- Khristine Otto, D.C.Chiropractor1902960750
- Levi Otto, D.CChiropractor1720789290
- Keith Oudenhoven, D.C.Chiropractor1629013297
- Arissa OukropRegistered Dietitian1316825805
- Timothy Ourada, D.C.Chiropractor1033131123
- Gbolahan Oyinloye, M.D., MHSPsychiatry Physician1255695888
The largest Wisconsin cities
- Milwaukee18,389
- Madison15,014
- Green Bay4,619
- La Crosse3,735
- Eau Claire3,085
How to read this directory
Appleton, Wisconsin appears in the CMS National Plan and Provider Enumeration System with 3,249 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 Appleton - 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 Appleton 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 Appleton is weighted toward Physical Therapist (202 clinicians, followed by Professional Counselor with 193 and Nurse Practitioner with 155). 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, Appleton reports roughly 55 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 Appleton practice address, a coverage gap Appleton patients typically fill by traveling to a larger nearby hub.
For Appleton 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 Appleton, WI?
There are 3,249 registered healthcare providers in Appleton, WI, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Appleton?
The most common specialties in Appleton are Physical Therapist, Professional Counselor, Nurse Practitioner, Family Nurse Practitioner, Clinical Social Worker. Physical Therapist has the most providers with 202.
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.