Why are Medicare and Medicaid shown separately instead of combined?

They come from two different CMS data sources with no shared claim identifier, so they can't be reconciled into one number without double-counting or guessing. Every table and chart on this page keeps them fully separate.

Why is there no private/commercial revenue figure?

Private and commercial payer data comes from Transparency in Coverage files, which only publish negotiated rates — not claims or utilization volume. Without a volume figure, no revenue number can be computed for any provider from that data.

What does "Rank" mean in the Competitive Analysis & Benchmarks tables?

For a given CPT/HCPCS code, it's this provider's position by claims volume among all providers billing that same code at that geography level (State, National, or Connecticut for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Connecticut only?

Medicaid is administered per-state with no single national fee schedule, so a state or national comparison the way Medicare has one isn't available. Connecticut (this provider's own state) is the only grouping that's conceptually meaningful.

Why are the numbers rounded to the nearest 10?

To avoid implying more precision than the underlying data supports at a single-provider level. Ratios are kept precise since they're a relative comparison, not a volume or dollar figure.

How current is this data?

The Medicare and Medicaid tables are both single current snapshots, not refreshed on a recurring schedule yet.

Erin Horstman (NPI 1578959961)

Field	Value
Entity Type	Individual
Organization	Erin Horstman
Address	20 York St
City	New Haven
State	CT
ZIP	06510
Taxonomy	Clinical Pathology/Laboratory Medicine Physician
NPI Enumerated	April 13, 2015

Payer Source	Total Paid
Medicare	$12.8K
Medicaid	$0

Medicare: Complete Services Breakdown

The CPT/HCPCS codes generating the most Medicare revenue for this provider.

6 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
88189	The clinician, typically a pathologist, interprets flow cytometry results of 16 or more markers.	90	$70	$6.2K
88188	The clinician, typically a pathologist, interprets flow cytometry results of nine to 15 markers.	50	$50	$2.4K
G0452	Molecular pathology procedure; physician interpretation and report	50	$40	$1.8K
86077	The lab analyst performs a cross match of a specimen that requires interpretation and a written report from the blood bank physician due to a difficult cross match, evaluation of irregular…	30	$40	$1.1K
85390	A physician or nonphysician lab professional provides interpretation and report of lab tests to evaluate fibrinolysis and coagulation.	30	$30	$780
88187	The clinician, typically a pathologist, interprets flow cytometry results of two to eight markers.	20	$30	$550

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 6 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Connecticut Distribution

Erin Horstman — 0 of 6 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Connecticut

Full comparison — all codes billed, vs. state median

6 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
88189	11	20	80	$70	$18.3K
85390	7	10	40	$30	$5.8K
G0452	14	20	60	$40	$5.5K
88188	9	20	50	$50	$2.8K
86077	8	10	30	$40	$1.8K
88187	7	10	30	$30	$990

Related Providers

Other providers that share a Tax Identification Number (TIN) with Erin Horstman, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Margaret Brandwein-weber	NY	Anatomic Pathology & Clinical Pathology Physician	$50.8K	$0
Saad Baqai	WI	Anatomic Pathology & Clinical Pathology Physician	$43.6K	$0
Paul Hosking	NY	Clinical Pathology/Laboratory Medicine Physician	$30.2K	$0
Lin Liu	TN	Anatomic Pathology & Clinical Pathology Physician	$28K	$0
Nusrat Perveen	—	Anatomic Pathology & Clinical Pathology Physician	$19.4K	$0
Minlin Xu	WV	Anatomic Pathology & Clinical Pathology Physician	$10.1K	$0
Melissa Petras	NH	Anatomic Pathology & Clinical Pathology Physician	$4.1K	$0

Erin Horstman — Billing Profile & Reimbursement Data

Sign up for Erin Horstman — Billing Profile & Reimbursement Data policy alerts

Erin Horstman — Billing Profile & Reimbursement Data

Sign up for Erin Horstman — Billing Profile & Reimbursement Data policy alerts

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Frequently Asked Questions

References