Top billers · Drug Testing · Massachusetts

Who bills drug testing in Massachusetts?

In 2024, 193 providers billed Medicare for presumptive and definitive drug testing in Massachusetts: 116,409 services and an estimated $9.7M 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 Massachusetts.

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

#	Provider	Specialty	City	Services	Est. Medicare paid
1	Quest Diagnostics Massachusetts LLC	Clinical Laboratory	Marlborough	33,876	$3.1M
2	Total Wellness Centers, LLC	Clinical Laboratory	Holyoke	21,354	$1.5M
3	Quest Diagnostics LLC	Clinical Laboratory	Marlborough	19,637	$1.7M
4	Susan Cary, M.D.	Psychiatry	Springfield	5,312	$419K
5	Boris Shwartzman, M.D.	Anesthesiology	Attleboro	2,985	$317K

That's the top 5. 188 more providers billed drug testing in Massachusetts 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 Massachusetts

80307Testing for presence of drug, by chemistry analyzers67,876

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/ms36,049

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/ms5,962

80305Testing for presence of drug, read by direct observation3,562

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/ms1,765

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/ms1,195

Top specialties billing it

Internal Medicine42 providers

Nurse Practitioner35 providers

Family Practice32 providers

Physician Assistant19 providers

Where the billers are

Boston13 providers

Greenfield9 providers

Springfield8 providers

Attleboro7 providers

Easthampton7 providers

City breakdown

The top drug testing cities in Massachusetts.

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 Massachusetts by est. Medicare paid was Attleboro: 7 providers billed 5,328 services for an estimated $549K, led by Boris Shwartzman, M.D., with 2,985 services (est. $317K Medicare paid).

#	City	Billers	Services	Est. Medicare paid	City leader (2024)
1	Attleboro	7	5,328	$549K	Boris Shwartzman, M.D. · 2,985 services · est. $317K
2	Springfield	8	6,936	$544K	Susan Cary, M.D. · 5,312 services · est. $419K
3	Boston	13	4,779	$484K	Eddy Feliz, M.D. · 1,378 services · est. $153K
4	Greenfield	9	1,568	$114K	Suzanne Smith, MD · 994 services · est. $75K
5	Easthampton	7	492	$34K	Kathryn Mckenna-Weiss, NP · 240 services · est. $18K

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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