Top billers · Drug Testing · Washington

Who bills drug testing in Washington?

In 2024, 180 providers billed Medicare for presumptive and definitive drug testing in Washington: 67,271 services and an estimated $6.6M in Medicare payments. Below: the top 5 by service volume, straight from CMS's public billing data.

The list

The top 5 drug testing billers in Washington.

Ranked by 2024 Medicare service volume across the family's codes.

#	Provider	Specialty	City	Services	Est. Medicare paid
1	Regional Toxicology Services, LLC	Clinical Laboratory	Tacoma	22,788	$2.4M
2	Alexey Ryskin, M.D.	Interventional Pain Management	Richland	5,556	$823K
3	Carenexa, LLC	Clinical Laboratory	Vancouver	4,465	$503K
4	Ross Vogelgesang, MD	Anesthesiology	Olympia	1,553	$89K
5	Dennis Ang, ARNP	Nurse Practitioner	Richland	1,329	$77K

That's the top 5. 175 more providers billed drug testing in Washington in 2024. The full ranked list, with year-over-year history, group affiliations, and phone numbers, is one search in Prospect 811.

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The breakdown

What's behind the number.

Top codes in Washington

80307Testing for presence of drug, by chemistry analyzers31,992

G0480Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms12,767

G0482Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms7,123

80305Testing for presence of drug, read by direct observation5,431

G0481Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms5,066

G0483Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms4,481

Top specialties billing it

Nurse Practitioner53 providers

Family Practice37 providers

Physician Assistant37 providers

Pain Management15 providers

Where the billers are

Spokane22 providers

Tacoma11 providers

Seattle10 providers

Bellingham8 providers

Kennewick8 providers

City breakdown

The top drug testing cities in Washington.

The same 2024 Medicare data, sliced by city: the biggest drug testing cities by number of billers, in est.-Medicare-paid order.

In 2024 the top city for drug testing in Washington by est. Medicare paid was Tacoma: 11 providers billed 23,333 services for an estimated $2.5M, led by Regional Toxicology Services, LLC, with 22,788 services (est. $2.4M Medicare paid).

#	City	Billers	Services	Est. Medicare paid	City leader (2024)
1	Tacoma	11	23,333	$2.5M	Regional Toxicology Services, LLC · 22,788 services · est. $2.4M
2	Spokane	22	5,350	$482K	James Foster, MSN, NP · 1,094 services · est. $116K
3	Seattle	10	3,515	$318K	University Of Washington · 1,323 services · est. $129K
4	Bellingham	8	1,504	$160K	Casey Inman, ARNP, LAC · 423 services · est. $48K
5	Kennewick	8	3,906	$150K	Jean You, M.D · 829 services · est. $10K

City totals are cut from the same public CMS data as everything above: Medicare fee-for-service only, after CMS's under-11-beneficiary suppression, dollars always est. Medicare paid. Where a city shows fewer than 3 billers, we show the totals and name no one. Naming is capped by design: up to 5 ranked billers above plus at most one leader per city here, and no one else on this page.

Where these numbers come from. Everything on this page is computed from CMS's public Medicare Provider Utilization & Payment data for 2024, the most recent year CMS has released. It covers traditional Medicare fee-for-service only (no commercial insurance, no Medicare Advantage). CMS suppresses any provider-and-code line with fewer than 11 beneficiaries before publishing, so low-volume billers don't appear at all. "Est. Medicare paid" is each billing line's average Medicare payment multiplied by its service count, summed. One service is one drug screen or definitive panel as billed to Medicare. Prospect 811 organizes public data; it doesn't add to or alter it. Not affiliated with or endorsed by CMS. Full detail on the data page.

This is one code family, one state, one year.

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