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

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

Mark Zweben (NPI 1720067077)

Field	Value
Entity Type	Individual
Organization	Mark Zweben
Address	121 Becks Woods Dr
City	Bear
State	DE
ZIP	19701
Taxonomy	Cardiovascular Disease Physician
NPI Enumerated	January 14, 2006

Payer Source	Total Paid
Medicare	$586.6K
Medicaid	$0

Key Findings

This provider’s Medicare revenue is concentrated: Total Medicare revenue is $586.6K and the precomputed top 3 Medicare codes (99215, 93229, 78452) account for 65.6% of that total. The single largest contributor is 99215 (1.7K claims, $126 avg paid/claim, $211.2K revenue, 36.5% of this provider's total Medicare revenue), followed by 93229 (136 claims, $678 avg paid/claim, $92.2K revenue, 15.9%) and 78452 (224 claims, $342 avg paid/claim, $76.6K revenue, 13.2%).

The CPT/HCPCS mix indicates a cardiology practice built around high-complexity outpatient evaluation and management plus in-office diagnostic imaging and monitoring. High-volume 99215 visits (1.7K claims) point to a steady stream of complex ambulatory encounters, while 78452 SPECT studies (224 claims) and tracer A9502 usage (231 claims, $10.2K revenue) plus J2785 regadenoson (632 claims, $25.9K revenue) signal an active nuclear stress testing capability integrated into the practice.

This provider is effectively single-payer from an operational perspective: there is no Medicaid billing on file (none below). With Medicare revenue of $586.6K and no Medicaid revenue, the practice is heavily dependent on Medicare patient volume and reimbursement dynamics.

For certain services the provider ranks at or near national outlier levels, demonstrating strong national-scale throughput for specific codes. Most notably 99215 ranks #45 of 145531 providers nationally (100th percentile; extreme outlier, far above typical national volume for this code), and 93000 (1.2K claims, $10 avg paid/claim, $12K revenue) ranks #938 of 71016 providers nationally (99th percentile; extreme outlier, far above typical national volume for this code), indicating unusually high volume for both high-complexity E/M visits and basic ECG interpretation.

Other high-revenue codes show above-typical but more moderate positions: 93229 ranks #150 of 2091 providers nationally (93th percentile; typical, unremarkable volume for this code) and 78452 ranks #919 of 14946 providers nationally (94th percentile; notably above typical national volume for this code), so the practice’s dominance is selective—very strong for some services and typical for others.

There is a clear operational emphasis on device-based and remote monitoring services, reflected by multiple monitoring and device-management codes across the top 25. Codes such as 99454 (131 claims, $5.1K revenue), 99457 (120 claims, $4.3K revenue), G2066 (105 claims, $3.2K revenue), 93297 (103 claims, $2.1K revenue) and 93294 (76 claims, $1.7K revenue) collectively show recurring, programmatic revenue streams from remote physiologic monitoring and implantable device follow-up, even though each line contributes modestly to total Medicare revenue.

The provider’s service mix also includes comprehensive imaging and procedural echocardiography: 93306 (346 claims, $132 avg paid/claim, $45.7K revenue) contributes materially to the portfolio and 93312 transesophageal echocardiography appears in the mix (15 claims, $1.3K revenue). These imaging volumes, together with nuclear testing and ECG volume, indicate a full-spectrum ambulatory cardiac diagnostics operation rather than a procedure-only or consult-only practice.

The provider has long tenure in the Medicare program, with NPI enumeration dated 2006-01-14 (~20 years ago), which supports interpretation of these volumes as established, sustained practice patterns rather than transient activity spikes. Across the non-top-3 codes the rank/percentile notes are predominantly in the typical or modest range (many labeled "typical, unremarkable volume for this code"), suggesting that outside a few dominant lines this provider participates at a conventional level nationally.

Medicare: Complete Services Breakdown

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

37 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
99215	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a high level of medical decision making, and/or the…	1,680	$130	$211.2K
93229	In this procedure, the provider, typically a technician, places a wearable electrocardiographic monitoring device on the patient, instructs him in its use, and monitors the transmissions, to detect…	140	$680	$92.2K
78452	In this procedure, the provider performs multiple SPECT studies of the heart to determine the areas of deficient blood flow. The goal of the procedure is to determine areas that have deficient blood…	220	$340	$76.6K
93306	The provider uses transducers to obtain two–dimensional (2D) images of the heart structures through the chest wall. He evaluates the anatomy and function of all four heart chambers, valves, adjacent…	350	$130	$45.7K
99233	The provider sees a patient for a subsequent hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a high level of medical decision making or the…	310	$90	$28.6K
J2785	Injection, regadenoson, 0.1 mg	630	$40	$25.9K
99223	The provider sees a patient for an initial hospital inpatient or observation care visit involving evaluation and management (E/M). The visit involves a high level of medical decision making or the…	110	$130	$14.6K
99205	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a high level of medical decision making, and/or the provider…	100	$150	$14.3K
93000	The provider records the electrical conduction of the heart to examine any abnormality in its functioning, based on signals from at least 12 leads, wires that connect the recording device to…	1,200	$10	$12K
93880	Duplex scanning of arteries for the evaluation of blood flow is a type of non–invasive vascular diagnostic process. A physician can visualize and selectively assess the flow patterns of peripheral…	80	$150	$11.7K

Showing 1–10 of 37

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 37 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Delaware Distribution

Mark Zweben — 2 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Delaware

Full comparison — all codes billed, vs. state median

37 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
93306	47	70	450	$100	$51.8K
78452	14	60	120	$250	$40.3K
93229	1	30	40	$670	$34.2K
J2785	10	30	390	$40	$26.9K
99214	1,417	1,830	150	$80	$25.5K
99458	13	20	170	$30	$19.4K
99457	15	20	170	$40	$18.1K
93880	35	80	70	$110	$16.6K
99233	62	500	80	$90	$15.4K
99454	15	20	180	$40	$12.7K

Showing 1–10 of 37

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Christiana Care Health Services, Inc.	DE	General Acute Care Hospital	$0	$99.4M
Christiana Care Health Services Inc	DE	Hospitalist Physician	$0	$13.6M
Mercy Health System Corporation	WI	Multi-Specialty Clinic/Center	$0	$13.2M
Christiana Care Health Services Inc	DE	Obstetrics & Gynecology Physician	$0	$9.9M
Christiana Care Health Services Inc	DE	Neonatal-Perinatal Medicine Physician	$0	$8.9M
Christiana Care Health Services Inc	DE	Family Medicine Physician	$0	$5.6M
Delaware Cardiovascular Associates, P.A.	DE	Cardiovascular Disease Physician	$0	$5.4M
Christiana Care Health Services Inc	DE	Neurology Physician	$0	$5.1M
Christiana Care Health Services, Inc	DE	Family Medicine Physician	$0	$5.1M
Union Hospital Of Cecil County	MD	Internal Medicine Physician	$0	$4.9M

Nearby Providers

Other providers in the same ZIP code as Mark Zweben, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Chesapeake Rehab Equipment Inc.	DE	Customized Equipment (DME)	$0	$4.1M
Reliance Healthcare, LLC	DE	Family Medicine Physician	$0	$3.3M
United Medical Clinic, LLC	DE	Internal Medicine Physician	$0	$2.7M
Aquila Of Delaware, Inc.	DE	Substance Use Disorder Rehabilitation Clinic/Center	$0	$1.9M
Kool Koala Pediatric & Adolescent Dentistry LLC	DE	Pediatric Dentistry	$0	$1.6M
Mark Wieczorek	DE	Dentist	$0	$1.4M
Messiahs Angel Foundation Center	DE	Adult Day Care Clinic/Center	$0	$1.2M
Aquila Of Delaware, Inc.	DE	Substance Use Disorder Rehabilitation Clinic/Center	$0	$735.1K
Wasif Qureshi	DE	Cardiovascular Disease Physician	$683.6K	$0
Brigida Rodriguez	DE	Mental Health Counselor	$0	$521.2K

Mark Zweben — Billing Profile & Reimbursement Data

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Key Findings

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References