ID: the directory by county and ZIP

28,449
practitioners: 39.8%
have a workplace: 11,058
provider organizations: 10,616
tax records (not added): 44
counties

Sort byHide counties under

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

County	Practitioners	Has a workplace	Provider orgs	Tax records	ZIPs
+Ada County	11,929	39.4%	4,463	3,604	15
+Kootenai County	2,990	43.5%	970	1,129	9
+Bonneville County	2,368	34.3%	1,059	1,191	4
+Canyon County	2,275	35.3%	804	811	10
+Bannock County	1,928	36.0%	723	741	7
+Twin Falls County	1,295	35.8%	543	588	6
+Nez Perce County	535	28.0%	233	237	2
+Latah County	530	24.0%	144	132	7
+Bonner County	495	38.4%	277	331	8
+Madison County	487	40.2%	198	251	3
+Valley County	413	69.2%	72	77	3
+Bingham County	360	55.3%	188	152	4
+Cassia County	351	49.9%	144	155	3
+Payette County	350	61.1%	102	101	3
+Elmore County	195	33.3%	68	62	2
+Jerome County	192	63.5%	70	59	2
+Teton County	167	58.1%	55	60	2
+Gem County	157	63.7%	84	101	1
+Blaine County	133	36.1%	55	58	4
+Benewah County	123	32.5%	52	42	2
+Minidoka County	113	71.7%	47	46	3
+Lemhi County	113	43.4%	60	72	1
+Owyhee County	90	71.1%	44	21	2
+Gooding County	88	29.5%	66	51	3
+Idaho County	82	31.7%	62	42	4
+(county unknown)	79	11.4%	18	23	23
+Jefferson County	77	39.0%	63	63	3
+Caribou County	65	66.2%	38	40	2
+Fremont County	56	44.6%	35	37	2
+Shoshone County	56	44.6%	60	64	4
+Boundary County	54	35.2%	42	49	1
+Franklin County	53	34.0%	40	42	4
+Washington County	53	24.5%	25	20	2
+Clearwater County	50	48.0%	37	37	1
+Bear Lake County	49	44.9%	36	30	1
+Oneida County	29	51.7%	24	23	1
+Power County	22	31.8%	18	16	1
+Lincoln County	18	77.8%	15	21	3
+Boise County	11	72.7%	7	11	4
+Custer County	9	44.4%	11	18	2
+Lewis County	9	44.4%	2	2	2
+Butte County	0	—	2	3	2
+Camas County	0	—	1	1	1
+Adams County	0	—	1	2	1

By profession, statewide

Profession	Practitioners	Has a workplace
behavioral-health	7,841	24.7%
physician	4,905	78.1%
rehab-therapy	4,584	26.3%
advanced-practice	3,030	80.2%
pharmacy	1,875	3.0%
dental	1,405	15.9%
other-clinical	1,175	12.6%
nursing	972	39.1%
chiropractic	731	51.2%
dietary	402	34.1%
eye-vision	371	71.7%
student	362	15.5%
group	289	54.3%
agency	172	5.2%
support	164	7.9%
podiatry	72	84.7%
facility	48	18.8%
emergency-medical	26	42.3%
supplier	16	31.2%
no-taxonomy	8	12.5%
transport	1	100.0%

Release 2026-08-20. 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/id.json. Looking for one provider? Search by name or NPI.