2026 data CMS NPPES NUCC Taxonomy

Doctors in Fond Du Lac, WI

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

1,294
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Physical Therapist
Top specialty
75 providers
Wisconsin
State
WI

1,294 healthcare providers across 20 specialties

Fond Du Lac, Wisconsin appears in the CMS National Plan and Provider Enumeration System with 1,294 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 Fond Du Lac — 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 Fond Du Lac practice location on file.

The provider mix in Fond Du Lac is weighted toward Physical Therapist (75 clinicians, followed by Registered Nurse with 69 and Social Worker with 64). 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, Fond Du Lac reports roughly 21.9 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.

For Fond Du Lac 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 NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.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.

1,294
Providers
20
Specialties
21.9
Per 100K (state)

Which specialties are most common in Fond Du Lac

Physical Therapist 75
Registered Nurse 69
Social Worker 64
Case Manager/Care Coordinator 57
Family Nurse Practitioner 51
Nurse Practitioner 51
Occupational Therapist 51
Pharmacist 51
Professional Counselor 42
Physical Therapy Assistant 39
Addiction (Substance Use Disorder) Counselor 36
General Practice Dentistry 35
Speech-Language Pathologist 33
Occupational Therapy Assistant 27
Family Medicine Physician 27
Internal Medicine Physician 24
Chiropractor 23
Anesthesiology Physician 20
Clinical Social Worker 20
Counselor 19

Healthcare Providers (Page 22)

Name
MARIANNA SIERACKI, PA-C
Physician Assistant
AVIS SIERRA, MS, LPC, NCC
Professional Counselor
LEWIS SIERRA, MD
Emergency Medicine Physician
DAVID SIMONSMEIER
Social Worker
RICHARD SIMPSON, M.D.
Diagnostic Radiology Physician
CYNTHIA SINGLETON, NP
Family Nurse Practitioner
KIMBERLY SINJAKOVIC, MS IN ART THERAPY
Professional Counselor
JENNI SLINDE, RPH
Pharmacist
NATHAN SLINDE, MD
Gastroenterology Physician
SHERI SMIT, RN
Registered Nurse First Assistant
BECKY SMITH
Case Manager/Care Coordinator
JOHN SNELLGROVE, MD
Student in an Organized Health Care Education/Training Program
RUTH SOBECK, MS, LMFT
Marriage & Family Therapist
STEVEN SOBECK, M.D.
Anesthesiology Physician
BRITTANY SOBOLESKI, SLP-CFY
Speech-Language Pathologist
DARIA SONNENFELD, LAT
Athletic Trainer
ASHVIN SOOD, MD
Psychiatry Physician
PATRICK SORENSEN, RN
Case Management Registered Nurse
JULIE SOWINSKI
Registered Nurse
SAMANTHA SPANNBAUER
Hearing Instrument Specialist
ALEXANDRA SPELLMAN, RN
General Practice Registered Nurse
MARTINA SPELTER, DDS
Dentist
SARAH SPERL, SLP
Speech-Language Pathologist
GRACE SPHATT
Addiction (Substance Use Disorder) Counselor
SAMUAL SPRANGER
Social Worker
JEANNETTE SROKA, RN
Addiction (Substance Use Disorder) Registered Nurse
JUNE STAEHLER
Social Worker
JUDITH STAFFORD
Social Worker
TONI STANLEY, MD
Surgery Physician
BRITTANY STARK
Counselor
REBECCA STARK, PHARM.D.
Pharmacist
BRIAN STECKER, DDS
Pediatric Dentistry
JANEAH STEEL, R.D., C.D.
Registered Dietitian
ANN STEFFEN
Case Manager/Care Coordinator
BURT STEFFES, MD
Dermatology Physician
ELIZABETH STEGER, RN
Diabetes Educator Registered Nurse
MONTANA STEIER
Occupational Therapy Assistant
GIDEON STEIN, PMHNP
Psychiatric/Mental Health Nurse Practitioner
BREE STEINERT, APSW
Social Worker
MARGARET STEINMETZ, M.D.
Obstetrics & Gynecology Physician
SCOTT STELLMACHER, MD
Emergency Medicine Physician
MICHELLE STEPHANIE
Social Worker
CHRYSTAL STEPHANY, MA,LPC
Addiction (Substance Use Disorder) Counselor
JENNIFER STEPHANY, APNP
Family Nurse Practitioner
SHAUN STEPHENS, PHARMD
Pharmacist
ALYSSA STEPHENSON, DPM
Foot & Ankle Surgery Podiatrist
ANDREA STEWART, OTR
Occupational Therapist
CAROL STEWART, CADC
Counselor
ANDREW STICKEL, PT
Physical Therapist
LYNN STOCK, PHD
Professional Counselor

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 Fond Du Lac, WI?
There are 1,294 registered healthcare providers in Fond Du Lac, WI, covering 20 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Fond Du Lac?
The most common specialties in Fond Du Lac are Physical Therapist, Registered Nurse, Social Worker, Case Manager/Care Coordinator, Family Nurse Practitioner. Physical Therapist has the most providers with 75.

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.