PR: the directory by county and ZIP

19,791
practitioners: 31.1%
have a workplace: 8,068
provider organizations: 442
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	5,370	28.0%	2,207	117	17
+Ponce Municipio	2,452	25.0%	606	37	7
+Guaynabo Municipio	1,458	17.2%	395	22	5
+BayamÃ³n Municipio	1,405	32.8%	577	26	4
+Caguas Municipio	1,216	58.4%	449	18	2
+MayagÃ¼ez Municipio	909	35.2%	370	17	2
+(county unknown)	470	36.0%	79	5	16
+Humacao Municipio	454	27.8%	216	20	2
+Arecibo Municipio	364	29.4%	209	10	2
+Carolina Municipio	362	31.5%	169	8	5
+Fajardo Municipio	240	31.2%	133	9	1
+ManatÃ Municipio	234	32.9%	150	11	1
+San SebastiÃ¡n Municipio	206	31.6%	85	4	1
+Dorado Municipio	196	36.2%	108	7	1
+Isabela Municipio	196	37.2%	84	3	1
+Aguada Municipio	175	42.9%	73	2	1
+Cayey Municipio	172	34.9%	88	5	1
+San GermÃ¡n Municipio	156	32.7%	90	5	1
+Aguadilla Municipio	153	34.6%	88	4	2
+Barranquitas Municipio	148	57.4%	29	2	1
+Toa Baja Municipio	144	28.5%	72	4	2
+Yauco Municipio	137	32.1%	76	3	1
+Juncos Municipio	137	28.5%	37	3	1
+Guayama Municipio	136	31.6%	55	5	1
+Hatillo Municipio	126	38.9%	37	3	1
+Trujillo Alto Municipio	118	48.3%	49	2	1
+Coamo Municipio	111	35.1%	48	1	1
+Cidra Municipio	105	57.1%	34	2	1
+Vega Baja Municipio	102	16.7%	69	3	2
+Cabo Rojo Municipio	98	19.4%	52	4	1
+Barceloneta Municipio	97	26.8%	41	3	1
+Aibonito Municipio	97	27.8%	47	2	1
+Camuy Municipio	96	38.5%	40	3	1
+Moca Municipio	91	20.9%	54	0	1
+Morovis Municipio	81	51.9%	37	2	1
+Juana DÃaz Municipio	81	42.0%	57	3	1
+San Lorenzo Municipio	80	41.2%	37	6	1
+Yabucoa Municipio	75	17.3%	36	0	1
+Vega Alta Municipio	73	28.8%	42	3	1
+Corozal Municipio	73	24.7%	35	2	1
+Utuado Municipio	69	31.9%	50	2	1
+Ciales Municipio	66	43.9%	18	0	1
+CanÃ³vanas Municipio	66	22.7%	40	2	1
+Sabana Grande Municipio	64	29.7%	38	1	1
+Salinas Municipio	64	45.3%	45	2	1
+Naranjito Municipio	60	21.7%	37	3	1
+RÃo Grande Municipio	55	21.8%	29	3	1
+Gurabo Municipio	53	13.2%	20	1	1
+Lares Municipio	51	23.5%	20	1	1
+CataÃ±o Municipio	49	18.4%	30	3	1
+RincÃ³n Municipio	47	44.7%	17	0	1
+Las Piedras Municipio	47	14.9%	25	2	1
+Arroyo Municipio	44	52.3%	25	2	1
+Villalba Municipio	44	20.5%	29	1	1
+Toa Alta Municipio	41	29.3%	49	6	1
+Santa Isabel Municipio	40	15.0%	21	2	1
+Quebradillas Municipio	39	30.8%	33	0	1
+AÃ±asco Municipio	37	24.3%	37	2	1
+PeÃ±uelas Municipio	36	25.0%	24	0	1
+Lajas Municipio	35	31.4%	19	2	1
+Aguas Buenas Municipio	35	31.4%	22	0	1
+Naguabo Municipio	32	12.5%	15	1	1
+Guayanilla Municipio	31	51.6%	25	1	1
+Luquillo Municipio	31	41.9%	16	2	1
+Hormigueros Municipio	28	28.6%	29	2	1
+Adjuntas Municipio	27	33.3%	22	2	1
+Florida Municipio	26	61.5%	28	3	1
+Patillas Municipio	25	28.0%	9	1	1
+Ceiba Municipio	25	8.0%	15	2	1
+Orocovis Municipio	23	34.8%	23	1	1
+Jayuya Municipio	22	45.5%	19	3	1
+Maunabo Municipio	19	5.3%	14	1	1
+ComerÃo Municipio	19	36.8%	17	0	1
+GuÃ¡nica Municipio	18	27.8%	17	0	2
+Las MarÃas Municipio	13	38.5%	5	0	1
+LoÃza Municipio	7	57.1%	2	0	1
+Maricao Municipio	5	60.0%	13	0	1
+Vieques Municipio	4	0.0%	11	2	1

By profession, statewide

Profession	Practitioners	Has a workplace
physician	7,486	50.9%
behavioral-health	2,556	23.7%
pharmacy	2,222	7.9%
student	1,299	1.9%
dental	1,127	15.2%
rehab-therapy	1,060	26.5%
emergency-medical	820	4.8%
other-clinical	655	30.7%
eye-vision	468	40.8%
group	402	54.5%
chiropractic	379	59.6%
dietary	355	27.0%
nursing	286	6.6%
advanced-practice	211	10.9%
support	152	12.5%
no-taxonomy	103	6.8%
facility	99	19.2%
podiatry	51	35.3%
supplier	28	7.1%
transport	18	11.1%
agency	13	7.7%
payer	1	100.0%

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/pr.json. Looking for one provider? Search by name or NPI.