NPPES file of Aug 9, 2026

Doctors and health care providers in Oshkosh, WI

1,527 individual NPPES records list a practice address in Oshkosh, 13th of 370 Wisconsin cities. The largest group is nurse practitioner: 92, 6% of the city's records, against 3% across Wisconsin. Page 31 of 31.

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

Oshkosh in Wisconsin

  • Rank in Wisconsin13th of 370 cities by records
  • Share of the state1.3% of Wisconsin's records
  • Specialties present25 or more taxonomy codes
  • Top three groups17.2% of all records
  • Nurse Practitioner rank6th of the 10 Wisconsin cities with the most

Compared with Wisconsin as a whole, Oshkosh has 10.1× the state's share of case management registered nurse records and 0.69× its share of mental health counselor records.

Providers in Oshkosh, alphabetically

  1. Simran Zander, NPNurse Practitioner1558128017
  2. Ryan Zantow, MDOccupational Medicine Physician1821044892
  3. Valerie Zapolsky, MDPediatrics Physician1942319637
  4. Deborah Zelhofer, CNMAdvanced Practice Midwife1316934078
  5. Karly Zelinski, BCBABehavior Analyst1316698665
  6. Kam Zemke, SLP, CCCSpeech-Language Pathologist1144564675
  7. Nicole ZemlockCase Manager/Care Coordinator1689988073
  8. Sarah Zenner, DPTPhysical Therapist1063890481
  9. Mike ZernzachPharmacist1881211027
  10. Cynthia Zernzach MathePharmacist1417305079
  11. Lance Zernzack, MDFamily Medicine Physician1487761383
  12. David Zerrien, MDPsychiatry Physician1780742262
  13. Emily ZieglerPhysical Therapist1467256420
  14. Jennafer Ziemer, ODOptometrist1700550886
  15. Kay Zier, APNPNurse Practitioner1053859942
  16. Brenda Zimmerman, PACPhysician Assistant1326190703
  17. Kyle Zimmerman, DDSDentist1992297154
  18. Kylie Zimmerman, LMFT-ITMarriage & Family Therapist1417718685
  19. Abigail Zink, BCBABehavior Analyst1801506803
  20. Viann ZippererPhysical Therapy Assistant1528164506
  21. Camille Zizzo, DPMFoot & Ankle Surgery Podiatrist1619084522
  22. Tracy Zook, PHARMDPharmacist1235834037
  23. Francisco Zornosa, MDNephrology Physician1225070774
  24. Jennifer Zuberbier, ATCAthletic Trainer1811189699
  25. Julie Zuleger, LATAthletic Trainer1679561344
  26. Debbie Zwickey, LCSWSocial Worker1205943115
  27. Kevin Zwieschowski, PHARMDPharmacist1174808257

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

Oshkosh, Wisconsin appears in the CMS National Plan and Provider Enumeration System with 1,527 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 Oshkosh - 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 Oshkosh 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 Oshkosh is weighted toward Nurse Practitioner (92 clinicians, followed by Physical Therapist with 92 and Clinical Social Worker with 78). 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, Oshkosh reports roughly 25.8 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Oshkosh practice address, a coverage gap Oshkosh patients typically fill by traveling to a larger nearby hub.

For Oshkosh 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 Oshkosh, WI?

There are 1,527 registered healthcare providers in Oshkosh, WI, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Oshkosh?

The most common specialties in Oshkosh are Nurse Practitioner, Physical Therapist, Clinical Social Worker, Pharmacist, Registered Nurse. Nurse Practitioner has the most providers with 92.

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.