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 Arizona for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Arizona 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. Arizona (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.

Matthew Zarka (NPI 1568440741)

Matthew Zarka is a clinical pathology/laboratory medicine physician provider located in Scottsdale, Arizona. This profile covers 14 Medicare and 0 Medicaid CPT/HCPCS procedure codes, with claims volume, average reimbursement, and total revenue by code, benchmarked against other providers billing the same services.

Provider details (source: NPPES NPI Registry)

Medicare: Complete Services Breakdown

Field	Value
Entity Type	Individual
Organization	Matthew Zarka
Address	13400 E Shea Blvd
City	Scottsdale
State	AZ
ZIP	85259
Taxonomy	Clinical Pathology/Laboratory Medicine Physician
NPI Enumerated	January 6, 2006

Payer Source	Total Paid
Medicare	$78.2K
Medicaid	$0

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

14 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
88305	The physician, typically a pathologist, performs a level IV examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…	750	$30	$23.2K
88307	The physician, typically a pathologist, performs a level V examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…	170	$60	$10.9K
88173	The lab analyst performs the technical lab test to analyze a cytopathology specimen from a fine needle aspirate and then interprets and reports the results.	180	$60	$10.1K
88331	Pathological, or intraoperative, consultation provides necessary and precise information pertaining to diagnosis and prognosis which aid a surgeon in deciding whether to proceed further or not during…	140	$50	$6.9K
88341	The lab analyst applies an additional single antibody stain on a slide or slides prepared from the same patient specimen as the initial antibody stain, such as tumor tissue. Then a qualified…	260	$20	$5.7K
88332	Pathology consultation during surgery provides necessary and precise information pertaining to diagnosis and prognosis that aids a surgeon in deciding whether to proceed further during surgery.…	220	$20	$5.3K
88112	Selective cellular enhancement for cytopathology, such as the method of using a liquid–based slide preparation, uses a liquid–based medium to collect samples and preserve cells which can aid in…	210	$20	$4.3K
88321	A qualified provider, typically a pathologist, provides consultation and a report on slides prepared elsewhere. A unit of service is the surgical case regardless of the number of slides received.	60	$70	$4K
88342	The lab analyst applies an initial single antibody stain on a slide or slides prepared from a single patient specimen, such as tumor tissue. Then a qualified provider, typically a pathologist,…	120	$30	$3.2K
88309	The physician, typically a pathologist, performs a level VI examination of a surgical pathology specimen. The examination includes accessioning the specimen into the lab, which involves formally…	30	$110	$2.8K

Showing 1–10 of 14

Matthew Zarka — Billing Profile & Reimbursement Data

Sign up for Matthew Zarka — Billing Profile & Reimbursement Data policy alerts

Matthew Zarka — Billing Profile & Reimbursement Data

Sign up for Matthew Zarka — Billing Profile & Reimbursement Data policy alerts

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Frequently Asked Questions

References

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
88305	128	270	700	$40	$71.1K
88360	110	120	80	$70	$57.7K
88341	109	210	270	$40	$28.8K
88342	140	220	160	$50	$20.6K
88312	110	150	60	$70	$13.1K
88307	41	140	120	$70	$9.7K
88112	15	110	90	$30	$5.7K
88173	8	90	50	$70	$5.4K
88331	7	110	50	$60	$3.7K
88309	39	90	20	$110	$3.1K