PR: the directory by county and ZIP

19,696
practitioners: 31.1%
have a workplace: 8,246
provider organizations: 10,275
tax records (not added): 78
counties

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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
+San Juan Municipio	4,585	30.0%	2,210	2,746	17
+Ponce Municipio	2,413	24.9%	626	796	7
+BayamÃ³n Municipio	1,650	33.9%	635	778	4
+Guaynabo Municipio	1,490	16.7%	404	526	5
+Caguas Municipio	1,386	58.8%	461	564	2
+MayagÃ¼ez Municipio	931	35.6%	367	462	2
+Humacao Municipio	465	25.4%	215	278	2
+(county unknown)	454	33.5%	71	34	16
+Carolina Municipio	402	27.4%	180	247	5
+Arecibo Municipio	369	26.8%	219	270	2
+Fajardo Municipio	254	28.0%	134	165	1
+Dorado Municipio	210	35.2%	110	143	1
+ManatÃ Municipio	208	32.7%	154	197	1
+Isabela Municipio	202	29.2%	86	126	1
+San SebastiÃ¡n Municipio	201	23.4%	90	114	1
+Cayey Municipio	182	34.1%	93	117	1
+Aguada Municipio	176	35.8%	72	97	1
+Barranquitas Municipio	175	53.1%	32	34	1
+Aguadilla Municipio	167	32.3%	89	115	2
+Toa Baja Municipio	157	25.5%	76	98	2
+San GermÃ¡n Municipio	153	34.6%	93	118	1
+Guayama Municipio	140	32.1%	57	73	1
+Hatillo Municipio	136	41.2%	39	50	1
+Yauco Municipio	130	29.2%	68	100	1
+Juncos Municipio	129	24.8%	42	59	1
+Coamo Municipio	116	34.5%	50	66	1
+Vega Baja Municipio	109	22.9%	68	93	2
+Cidra Municipio	109	54.1%	32	39	1
+Barceloneta Municipio	106	17.9%	40	49	1
+Camuy Municipio	105	39.0%	40	48	1
+Trujillo Alto Municipio	103	35.9%	48	51	1
+Cabo Rojo Municipio	98	20.4%	54	67	1
+Aibonito Municipio	98	23.5%	43	60	1
+Morovis Municipio	88	53.4%	34	36	1
+Juana DÃaz Municipio	87	35.6%	55	71	1
+Moca Municipio	86	16.3%	54	74	1
+San Lorenzo Municipio	83	38.6%	36	29	1
+RincÃ³n Municipio	82	53.7%	19	17	1
+Utuado Municipio	81	23.5%	50	57	1
+Vega Alta Municipio	80	31.2%	47	59	1
+Salinas Municipio	76	43.4%	52	68	2
+Yabucoa Municipio	76	17.1%	35	35	1
+Sabana Grande Municipio	74	21.6%	39	51	1
+CanÃ³vanas Municipio	73	27.4%	42	62	1
+Corozal Municipio	72	18.1%	36	47	1
+Ciales Municipio	67	7.5%	17	22	1
+Naranjito Municipio	62	24.2%	39	53	1
+Lares Municipio	56	19.6%	21	35	1
+RÃo Grande Municipio	56	25.0%	34	51	1
+Gurabo Municipio	53	17.0%	19	26	1
+CataÃ±o Municipio	50	6.0%	30	41	1
+Villalba Municipio	47	25.5%	29	32	1
+Toa Alta Municipio	46	23.9%	58	53	1
+Lajas Municipio	45	33.3%	21	26	1
+Las Piedras Municipio	45	17.8%	26	31	1
+Arroyo Municipio	44	45.5%	25	25	1
+Quebradillas Municipio	39	30.8%	37	50	1
+AÃ±asco Municipio	37	21.6%	38	45	1
+PeÃ±uelas Municipio	37	27.0%	25	35	1
+Hormigueros Municipio	37	43.2%	31	31	1
+Santa Isabel Municipio	37	13.5%	18	18	1
+Aguas Buenas Municipio	35	28.6%	22	27	1
+Naguabo Municipio	34	11.8%	15	17	1
+Guayanilla Municipio	32	40.6%	24	25	1
+Florida Municipio	31	58.1%	29	22	1
+Luquillo Municipio	31	38.7%	19	21	1
+Adjuntas Municipio	27	37.0%	20	20	1
+Patillas Municipio	26	30.8%	11	16	1
+Ceiba Municipio	25	16.0%	16	27	1
+Jayuya Municipio	23	43.5%	20	19	1
+Orocovis Municipio	22	50.0%	23	33	1
+Maunabo Municipio	20	10.0%	13	16	1
+ComerÃo Municipio	19	36.8%	20	18	1
+GuÃ¡nica Municipio	18	27.8%	17	28	2
+Las MarÃas Municipio	13	23.1%	5	7	1
+LoÃza Municipio	7	28.6%	2	4	1
+Maricao Municipio	5	60.0%	14	7	1
+Vieques Municipio	3	0.0%	11	8	1

By profession, statewide

Profession	Practitioners	Has a workplace
physician	7,593	52.7%
behavioral-health	2,518	19.8%
pharmacy	2,198	3.5%
student	1,164	3.3%
dental	1,134	14.0%
rehab-therapy	1,016	21.8%
emergency-medical	847	6.1%
other-clinical	792	31.1%
eye-vision	481	46.2%
group	398	50.3%
chiropractic	385	61.8%
dietary	347	28.5%
nursing	285	1.4%
advanced-practice	164	4.9%
support	153	13.1%
facility	105	22.9%
podiatry	49	38.8%
supplier	26	7.7%
transport	20	15.0%
agency	14	7.1%
no-taxonomy	6	0.0%
payer	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/pr.json. Looking for one provider? Search by name or NPI.