Top billers · Drug Testing · Colorado

Who bills drug testing in Colorado?

In 2024, 115 providers billed Medicare for presumptive and definitive drug testing in Colorado: 28,501 services and an estimated $3.1M 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 Colorado.

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

#	Provider	Specialty	City	Services	Est. Medicare paid
1	Shaun Gabriel, M.D.	Pain Management	Denver	3,139	$381K
2	John Bissell, M.D.	Physical Medicine and Rehabilitation	Colorado Springs	2,630	$395K
3	Faisal Sayeed, M.D.	Pain Management	Colorado Springs	2,498	$361K
4	Nathaniel Moore, MD	Family Practice	Denver	2,149	$238K
5	Meridian Diagnostics LLC	Clinical Laboratory	Colorado Springs	1,501	$309K

That's the top 5. 110 more providers billed drug testing in Colorado 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 Colorado

80307Testing for presence of drug, by chemistry analyzers12,355

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/ms5,876

80305Testing for presence of drug, read by direct observation3,499

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/ms2,948

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/ms2,564

80306Testing for presence of drug, read by instrument assisted observation824

Top specialties billing it

Nurse Practitioner48 providers

Physician Assistant21 providers

Clinical Laboratory9 providers

Family Practice9 providers

Where the billers are

Colorado Springs25 providers

Denver12 providers

Englewood11 providers

Fort Collins11 providers

Aurora10 providers

City breakdown

The top drug testing cities in Colorado.

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 Colorado by est. Medicare paid was Colorado Springs: 25 providers billed 10,306 services for an estimated $1.4M, led by John Bissell, M.D., with 2,630 services (est. $395K Medicare paid).

#	City	Billers	Services	Est. Medicare paid	City leader (2024)
1	Colorado Springs	25	10,306	$1.4M	John Bissell, M.D. · 2,630 services · est. $395K
2	Denver	12	6,328	$692K	Shaun Gabriel, M.D. · 3,139 services · est. $381K
3	Englewood	11	4,974	$339K	Justin Merkow, M.D. · 1,246 services · est. $86K
4	Fort Collins	11	1,787	$286K	James Martinchick, MD · 1,063 services · est. $252K
5	Aurora	10	721	$24K	David Baez, MD · 161 services · est. $2K

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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