Value explorer / WI

WI: the directory by county and ZIP

100,933
practitioners
44.2%
have a workplace
21,073
provider organizations
981
tax records (not added)
72
counties

The bar is the share with a workplace listed, not the number of practitioners. Ranking by headcount would just rank by population.

CountyPractitionersHas a workplaceProvider orgsTax recordsZIPs
+Milwaukee County24,65948.1%5,07115836
+Dane County15,14037.8%1,8015934
+Waukesha County7,28836.5%1,9036625
+Brown County4,21943.6%9734014
+Wood County3,97171.0%4652010
+La Crosse County3,28641.5%441216
+Rock County3,11965.0%396219
+Outagamie County3,07240.6%6882213
+Ozaukee County2,82357.1%637248
+Eau Claire County2,66145.1%426265
+Winnebago County2,50743.0%557178
+Racine County1,94331.7%5192912
+Marathon County1,65428.5%4061811
+Kenosha County1,65240.4%4881610
+Sheboygan County1,24941.6%3321110
+Washington County1,18235.4%3411411
+Fond du Lac County1,15225.7%2561310
+St. Croix County1,13654.4%2431310
+Sauk County96839.9%1991510
+Dodge County95443.8%2971614
+Monroe County85924.6%10457
+Manitowoc County79027.1%252147
+Oneida County78646.8%15364
+Shawano County77163.4%137107
+Barron County70058.6%148148
+Jefferson County69733.6%235149
+Walworth County68226.8%2291511
+Waupaca County63256.2%13189
+Columbia County59648.8%1321210
+Portage County59423.9%19287
+Chippewa County55231.2%189168
+Marinette County53944.5%1761510
+Polk County52248.9%113810
+Grant County51346.6%1781410
+Green County49746.1%8446
+Douglas County48136.0%11565
+Sawyer County45459.5%7354
+Juneau County42058.6%6957
+Pierce County41057.6%11756
+Langlade County34665.3%8672
+Dunn County31931.7%9874
+Door County31429.6%10296
+Ashland County31136.3%6653
+Taylor County25553.3%71104
+Vilas County23333.5%59910
+Vernon County21432.7%7268
+Iowa County19243.2%7767
+Oconto County18735.3%12579
+Lincoln County18545.4%7962
+Richland County18430.4%5634
+Washburn County17742.4%5944
+Trempealeau County16747.9%7857
+Crawford County15240.1%6844
+Jackson County14732.0%5424
+Kewaunee County14439.6%6083
+Green Lake County14234.5%6024
+Calumet County12626.2%4535
+Clark County11833.1%5378
+Waushara County10815.7%74365
+Burnett County10428.8%3334
+Lafayette County9334.4%4635
+Bayfield County8514.1%2724
+Adams County8143.2%2023
+Price County7521.3%5254
+Rusk County7424.3%5265
+Florence County7064.3%401
+Forest County5632.1%1623
+Marquette County3724.3%2343
+Buffalo County3429.4%3503
+Pepin County3455.9%2844
+Iron County2458.3%1912
+(county unknown)1540.0%10025

By profession, statewide

ProfessionPractitionersHas a workplace
physician22,90475.7%
behavioral-health19,30133.6%
rehab-therapy18,64623.3%
advanced-practice13,37577.6%
pharmacy5,5429.4%
dental5,10211.7%
nursing4,81424.9%
other-clinical2,54811.1%
chiropractic2,46158.5%
student1,81811.1%
dietary1,25725.8%
eye-vision1,19869.0%
group51852.1%
support4119.0%
podiatry35073.7%
no-taxonomy34711.0%
facility14212.0%
agency8739.1%
transport4330.2%
supplier4020.0%
emergency-medical2638.5%
payer30.0%

Release 2026-10-07. Methodology 0.7.3-draft.

Counts come from the NDH bulk export at the release named above. Organizations are split by record type and never summed: roughly half the Organization file is `ein` tax records that carry an NPI and an address, so adding them to provider organizations roughly doubles the count. Practitioner geography uses the primary address; 14.85% of practitioners list addresses in more than one state and are counted only in the first. Counties are derived from the Census ZCTA-to-county relationship file, taking the county holding the largest share of a ZIP's population; ZIPs with no dominant county are grouped as unknown. Payer organizations carry no address at all and cannot appear in any geography. Profession categories here come from the directory's own Practitioner.qualification taxonomy, not from NPPES. H54 categorises the same practitioners against their NPPES taxonomy and lands 1 to 2 points different per profession as a result: PA physicians read 73.0% here and 74.3% there. Neither is wrong. This view describes what the directory says about itself, which is the right frame for a directory explorer; H54 asks how the directory compares to the federal registry.

Data as JSON: /api/v1/explorer/wi.json. Looking for one provider? Search by name or NPI.