2026 data CMS NPPES NUCC Taxonomy

Doctors in Greenfield, WI

Compiled from official public sources by the PlainDoctor editorial team.

Active healthcare providers in Greenfield sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

946
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Physical Therapist
Top specialty
119 providers
Wisconsin
State
WI

946 healthcare providers across 20 specialties

Greenfield, Wisconsin appears in the CMS National Plan and Provider Enumeration System with 946 registered healthcare providers spanning 20 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Greenfield - 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 Greenfield 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 2023 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Greenfield is weighted toward Physical Therapist (119 clinicians, followed by Occupational Therapist with 59 and Speech-Language Pathologist with 44). 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, Greenfield reports roughly 16 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.

Within Wisconsin, Greenfield ranks #21 of 363 cities tracked by provider count, accounting for 0.9% of the state's registered providers.

For Greenfield patients, this directory is most useful as a starting shortlist, searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

946
Providers
20
Specialties
#21
of 363 WI cities
0.9%
of WI providers
16
Per 100K (state)

Which specialties are most common in Greenfield

Physical Therapist 119
Occupational Therapist 59
Speech-Language Pathologist 44
Nurse Practitioner 43
Physical Therapy Assistant 43
Pharmacist 32
Family Nurse Practitioner 30
Family Medicine Physician 30
Occupational Therapy Assistant 29
Registered Nurse 29
Professional Counselor 28
Physician Assistant 25
Behavior Technician 22
Diagnostic Radiology Physician 21
Addiction (Substance Use Disorder) Counselor 21
Clinical Social Worker 19
Student in an Organized Health Care Education/Training Program 18
Dentist 14
Pediatrics Physician 13
Licensed Practical Nurse 13

Healthcare Providers (Page 13)

Name
Joseph Nicholas, M.D.
Family Medicine Physician
Theresa Niemczyk, PA-C
Medical Physician Assistant
Donald Nimmer, M.D.
Family Medicine Physician
Lanae Noah, O.T.
Occupational Therapist
Valentino Nokovic, PTA
Physical Therapy Assistant
Michael Nordstrom, MD
Otolaryngology Physician
Zahra Nouri, MD
Pediatric Gastroenterology Physician
Gregg Nowak, DC
Chiropractor
Clare Nyangor, APNP, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner
Brady O'Connor, APNP
Nurse Practitioner
Sarah O'Herron, PHARMD
Pharmacist
Glen O'Malley, D.D.S., S.C.
General Practice Dentistry
Jennifer O'Neil, RN
Diabetes Educator Registered Nurse
Shaawn Olds
Physical Therapy Assistant
David Olson, MD
Diagnostic Radiology Physician
Hamza Omar
Dentist
Bisrat Oqubay
Pharmacist
Melanie Orlando
Student in an Organized Health Care Education/Training Program
Kathryn Ortin, OTR
Occupational Therapist
Derek Orton, MD
Sports Medicine (Orthopaedic Surgery) Physician
Jeffrey Osbourne, DPM
Foot & Ankle Surgery Podiatrist
Randall Pack, DDS
Dentist
Shari Pack, COTA
Occupational Therapy Assistant
Erika Palmtag, PA-C
Medical Physician Assistant
Alexandra Pankowski
Behavior Technician
Mary Papandria, PHD HSPP
Health Service Psychologist
Carleen Paprocki, M.S., OTR/L
Physical Rehabilitation Occupational Therapist
Jill Paque, MPT
Physical Therapist
Kinjal Parekh
Family Nurse Practitioner
Emily Passehl, M.A., CCC-SLP
Speech-Language Pathologist
Heather Passow, COTA
Occupational Therapy Assistant
Chirag Patel, M.D.
Diagnostic Radiology Physician
Nileshkumar Patel, MD
Interventional Pain Medicine Physician
Andrew Patterson, DDS
General Practice Dentistry
Andrea Penister, NP
Registered Nurse
Esmeralda Perez, LPC
Mental Health Counselor
Erik Perez-Thai
Student in an Organized Health Care Education/Training Program
Kristi Peroceschi
Physical Therapist
Deirdre Peters, OTR
Occupational Therapist
James Peters, DPT
Physical Therapist
Gina Petersen, APNP
Primary Care Nurse Practitioner
Anne Petersen-Fisher, MD
Diagnostic Radiology Physician
Yvonne Petersen-Zich, M.S.
Speech-Language Pathologist
Melissa Peterson, PTA
Physical Therapy Assistant
Viranda Pfannenstiel, PTA
Physical Therapy Assistant
Melissa Pfeifer, OTR
Occupational Therapist
Zachary Pflum, M.D.
Otolaryngology Physician
Steven Phaklides, PTA
Physical Therapy Assistant
Van Phan, NP
Nurse Practitioner
Karianna Phetvixay
Behavior Technician

Nearby Cities in Wisconsin

Other Wisconsin cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Greenfield, WI?
There are 946 registered healthcare providers in Greenfield, WI, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Greenfield?
The most common specialties in Greenfield are Physical Therapist, Occupational Therapist, Speech-Language Pathologist, Nurse Practitioner, Physical Therapy Assistant. Physical Therapist has the most providers with 119.

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the PlainDoctor editorial team.