Doctors and health care providers in Marshfield, WI
1,360 individual NPPES records list a practice address in Marshfield, 16th of 370 Wisconsin cities. The largest group is students in training: 79, 6% of the city's records, against 2% across Wisconsin. Page 18 of 28.
The 8 largest groups in Marshfield
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Marshfield in Wisconsin
- Rank in Wisconsin16th of 370 cities by records
- Share of the state1.2% of Wisconsin's records
- Specialties present25 or more taxonomy codes
- Top three groups14.5% of all records
- Students in training rank4th of the 10 Wisconsin cities with the most
Compared with Wisconsin as a whole, Marshfield has 6.1× the state's share of anatomic pathology & clinical pathology physician records and 0.42× its share of professional counselor records.
Providers in Marshfield, alphabetically
- Vijaya Nirujogi, M.D.Surgery Physician1427068212
- Molly Noffke, OTOccupational Therapist1336931054
- Morgan Nordbeck, PAPhysician Assistant1013706993
- Ned Nordin, MDAnesthesiology Physician1114010592
- Kelly Noreen, NPNurse Practitioner1912094913
- Frank North, MDAnesthesiology Physician1730272113
- Jesus Nunez-Gornes, MDGastroenterology Physician1356564355
- John O'Brien, DDSGeneral Practice Dentistry1811208333
- Tiffany O'Brien, DDSGeneral Practice Dentistry1477878304
- Diarmuid O'Neill, MDAnesthesiology Physician1750460424
- Niav O'Neill, MDStudent in an Organized Health Care Education/Training Program1720825946
- Jeffrey O'ReillyRegistered Nurse1144687484
- Michael Oberg, MDPsychiatry Physician1659467819
- Kristen Obernberger, RNRegistered Nurse1699085753
- Rachel Occhiogrosso, MDHospitalist Physician1902581762
- Kate Oconnor, NPNurse Practitioner1619077351
- Katharine Odell, PHD, CCC-SLPSpeech-Language Pathologist1437264991
- Matthew Oelstrom, M.D.Pediatric Critical Care Medicine Physician1164748687
- Rebekah Oetken, R.N.Registered Nurse1518326784
- Kelsie-Marie Offenwanger, PSY.DClinical Child & Adolescent Psychologist1134645724
- Jane Ohde, DOSurgery Physician1164805560
- Adaora Okoli, MDInfectious Disease Physician1619536398
- Jennifer Okon, R.D., C.D.E., C.D.Registered Dietitian1386731982
- Asha Okorie, MDOphthalmology Physician1043478399
- Uzoma Okorie, MDPediatric Cardiology Physician1467619080
- Warren Olds, MDRadiation Oncology Physician1326146606
- Madeline Oleksy, LATAthletic Trainer1669603395
- Matthew OleyFamily Nurse Practitioner1376273474
- Gary Olsen, PHDClinical Neuropsychologist1437232154
- Jerry Olson, LPC CADC IIIProfessional Counselor1699849992
- John Olson, MDInternal Medicine Physician1194835249
- Kari Jo Olson, PTAPhysical Therapy Assistant1477789121
- Michael Olson, DDS MSDentist1750330155
- Theodore Olson, PHDPsychologist1912009614
- Tracy Olson, MSWSocial Worker1548362221
- Jeffrey Ongna, MS, LPCProfessional Counselor1932127511
- James Opitz, MDPediatrics Physician1659474286
- Christopher Ordonez, M.D.Pediatrics Physician1396192076
- John Orth, CRNACertified Registered Nurse Anesthetist1457580326
- Jill Orzehoskie, MPTPhysical Therapist1154790558
- P Osborne, C.O.Orthotist1730263757
- Anastasia Osipova, MD,PHDObstetrics & Gynecology Physician1073889382
- Keri Otte, MSW, APSWSocial Worker1598339178
- Gary Ovaska, C.O.Orthotist1972690980
- Elizabeth Palmini, MSWStudent in an Organized Health Care Education/Training Program1942003074
- Rinki Pandya, MDStudent in an Organized Health Care Education/Training Program1982276671
- Britney Papp, D.O.Pediatric Rehabilitation Medicine Physician1972954857
- Anjali ParekhPediatrics Physician1104654706
- Sherine Parimanath, MDInternal Medicine Physician1487764536
- Carol Park, L.P.T.Pediatric Physical Therapist1144425109
How to read this directory
Marshfield, Wisconsin appears in the CMS National Plan and Provider Enumeration System with 1,360 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 Marshfield - 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 Marshfield 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 Marshfield is weighted toward Student in an Organized Health Care Education/Training Program (79 clinicians, followed by Internal Medicine Physician with 62 and Physician Assistant with 56). 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, Marshfield reports roughly 23 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, Clinical Social Worker is the most prominent one with no provider currently listing a Marshfield practice address, a coverage gap Marshfield patients typically fill by traveling to a larger nearby hub.
For Marshfield 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 Marshfield, WI?
There are 1,360 registered healthcare providers in Marshfield, WI, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Marshfield?
The most common specialties in Marshfield are Student in an Organized Health Care Education/Training Program, Internal Medicine Physician, Physician Assistant, Nurse Practitioner, Physical Therapist. Student in an Organized Health Care Education/Training Program has the most providers with 79.
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.