35 registered Physiological Laboratory providers practise in Washington according to the National Plan and Provider Enumeration System (NPPES). Browse by city below, or click any provider to view their full NPI record including taxonomy, address, and contact details.
293D00000X35 in Washington19 citiesRefreshed monthly
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By the numbersPhysiological Laboratory in Washington
As of the June 2026 NPPES snapshot, Washington lists 35 registered Physiological Laboratory providers: 3% individual practitioners and 97% organizations. 43% are listed in Medicare's PECOS enrollment system.
3%
Individual practitioners
1 of 35 . NPI-1
97%
Organizations
34 of 35 . NPI-2
43%
Medicare-enrolled
15 listed in PECOS
#15
Density rank
of 53 states with Physiological Laboratory providers
Frequently asked · WashingtonPhysiological Laboratory in Washington
As of the June 2026 NPPES snapshot, 35 providers with the Physiological Laboratory taxonomy are registered to a Washington practice address. Counts refresh monthly from the public CMS registry.
Open any provider's full NPI record to see their active status, taxonomy, and registered Washington practice address. For real-time confirmation, the authoritative source is the CMS NPPES public registry, which FindMyNPI mirrors and refreshes monthly.
Bellevue (4), Seattle (4), Yakima (4). Use the "Refine by city" panel above to open any city's full directory.