Top billers · Surgical Pathology · Maryland

Who bills surgical pathology in Maryland?

In 2024, 286 providers billed Medicare for surgical pathology, special stains, and immunohistochemistry in Maryland: 769,878 services and an estimated $36.7M in Medicare payments. Below: the top 5 by service volume, straight from CMS's public billing data.

The list

The top 5 surgical pathology billers in Maryland.

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

#	Provider	Specialty	City	Services	Est. Medicare paid
1	Annapath, Inc	Clinical Laboratory	Bowie	104,428	$6.0M
2	Theranostix Inc	Clinical Laboratory	Beltsville	52,825	$2.6M
3	Derm Associates LLC	Clinical Laboratory	Silver Spring	52,159	$3.3M
4	Michael Ballo, M.D.	Pathology	Catonsville	27,793	$1.9M
5	Carl Gable, M.D.	Pathology	Fort Washington	26,859	$1.8M

That's the top 5. 281 more providers billed surgical pathology in Maryland 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 Maryland

88305Pathology examination of tissue using a microscope, intermediate complexity419,621

88342Special stained specimen slides to examine tissue, initial procedure96,020

88341Special stained specimen slides to examine tissue, each additional procedure95,943

88313Special stained specimen slides to examine tissue including interpretation and report77,453

88312Special stained specimen slides to identify organisms including interpretation and report41,990

88307Pathology examination of tissue using a microscope, moderately high complexity21,838

Top specialties billing it

Pathology249 providers

Clinical Laboratory14 providers

Dermatology13 providers

Neurology6 providers

Where the billers are

Baltimore167 providers

Bethesda18 providers

Rockville17 providers

Silver Spring11 providers

Bowie8 providers

City breakdown

The top surgical pathology cities in Maryland.

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

In 2024 the top city for surgical pathology in Maryland by est. Medicare paid was Bowie: 8 providers billed 164,845 services for an estimated $9.5M, led by Annapath, Inc, with 104,428 services (est. $6.0M Medicare paid).

#	City	Billers	Services	Est. Medicare paid	City leader (2024)
1	Bowie	8	164,845	$9.5M	Annapath, Inc · 104,428 services · est. $6.0M
2	Baltimore	167	190,014	$6.9M	Johns Hopkins University · 10,882 services · est. $807K
3	Silver Spring	11	75,097	$4.9M	Derm Associates LLC · 52,159 services · est. $3.3M
4	Rockville	17	23,120	$647K	Chyi-Chia Lee, M.D., PH.D. · 8,037 services · est. $201K
5	Bethesda	18	15,061	$457K	Mary Eid · 3,399 services · est. $107K

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 specimen exam or stain 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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