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

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

Steffen Hillemann (NPI 1821056912)

Field	Value
Entity Type	Individual
Organization	Steffen Hillemann
Address	364 Dorset St
City	South Burlington
State	VT
ZIP	05403
Taxonomy	Cardiovascular Disease Physician
NPI Enumerated	May 1, 2006

Payer Source	Total Paid
Medicare	$171.2K
Medicaid	$0

Key Findings

This provider’s billing is effectively single‑payer: Total Medicare revenue is $171.2K and there is no Medicaid billing on file (listed as "none below"). That concentration means Medicare drives the entire documented public-payer footprint and any payer-analysis should treat this as a Medicare-focused practice.

Revenue is highly concentrated in a few services: the top three Medicare codes (99214, 93306, 78452) account for 52.1% of this provider’s total Medicare revenue. Individually those codes generated $36.8K (99214, 21.5%), $26.4K (93306, 15.4%), and $25.8K (78452, 15.1%), so a small set of office visits and cardiac imaging services dominate receipts.

The code mix points to a cardiology practice built around outpatient evaluation and diagnostic cardiac testing with some procedural capability. High revenue from 99214 (office E/M), 93306 (transthoracic echocardiography), and 78452 (cardiac SPECT) — together with A9500 (technetium) and J2785 (regadenoson) — indicates routine noninvasive imaging and nuclear stress testing; presence of 92928, 93458, and 93571 shows the provider also bills for interventional coronary procedures and imaging supervision, suggesting participation in cath lab activity or inpatient procedural work.

On competitive standing, this provider is a modest national participant for most top services rather than a dominant player: 93306 ranks #12814 of 24624 providers nationally (48th percentile, described as "typical, unremarkable volume for this code"), 78452 ranks #5527 of 14946 (62th percentile, "typical, unremarkable volume for this code"), and 92928 ranks #2252 of 5112 (53th percentile, "typical, unremarkable volume for this code"). These midrange percentiles imply the provider operates at a commonplace volume level compared with national peers for core cardiology procedures.

There are a couple of notable statistical outliers in the activity mix: 93000 (ECG recording with interpretation) appears at 588 claims and $5.3K revenue and ranks #4096 of 71016 providers nationally (94th percentile), characterized explicitly as "notably above typical national volume for this code." By contrast 99214 is relatively high-ranked at #55952 of 479517 (88th percentile) but is still labeled "typical, unremarkable volume for this code," indicating the practice sees a busy but not atypical number of established-office visits for cardiology.

Operationally the provider generates heavy encounter and monitoring volume: 99214 shows 460 claims and 93000 shows 588 claims, which aligns with a workflow centered on frequent clinic visits plus routine ECGs and ambulatory monitoring services. The presence of multiple monitoring and interpretation codes (93248, 93246, 93244, 93225, 93227) further supports a practice that combines clinic-based evaluation with extended ECG/ambulatory heart-rhythm services.

The provider has long tenure in the Medicare system, with NPI enumeration dated 2006-05-01 (~20 years ago). That extended enrollment period suggests an established practice and potential longstanding referral relationships or institutional affiliations that underpin the documented service mix.

The complete absence of Medicaid billing ("none below") has contract and population implications: the provider’s documented revenue and service-line exposure are concentrated in Medicare beneficiaries, which may limit visibility into care patterns for younger or Medicaid-eligible populations and increases payer-concentration risk for analyses focused on public programs. Payers and network managers should treat this profile as Medicare-centric when considering credentialing, rate negotiations, or access planning.

Medicare: Complete Services Breakdown

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

27 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
99214	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…	460	$80	$36.8K
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…	210	$130	$26.4K
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…	80	$320	$25.8K
A9500	Technetium tc-99m sestamibi, diagnostic, per study dose	160	$90	$15K
92928	The provider inserts a catheter through the skin (percutaneous approach) and guides it into the heart's arteries. They deploy one or more stents (small tubes) to keep the artery open and may expand a…	30	$380	$10.6K
J2785	Injection, regadenoson, 0.1 mg	190	$40	$8.3K
93015	The provider supervises the recording of the electrical activity of the heart to examine any abnormality in its functioning by obtaining blood pressure and electrocardiograph readings at regular…	130	$50	$6.4K
93458	In this procedure, the provider performs imaging supervision and interpretation for a coronary angiography with left heart catheterization and intraprocedural injections for left ventriculography. He…	40	$150	$6.2K
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…	590	$10	$5.3K
99213	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a low level of medical decision making, and/or the…	90	$50	$4.8K

Showing 1–10 of 27

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 27 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Vermont Distribution

Steffen Hillemann — 4 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Vermont

Full comparison — all codes billed, vs. state median

27 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
93306	19	20	480	$50	$22.6K
A9500	1	10	160	$90	$14.9K
92928	5	10	30	$390	$13.4K
99214	46	960	90	$70	$10.6K
J2785	2	10	200	$40	$8.4K
99233	111	220	50	$90	$8K
99215	330	410	40	$110	$7.2K
99232	182	320	60	$60	$7.1K
78452	8	20	80	$80	$6.8K
99213	406	910	80	$50	$6.7K

Showing 1–10 of 27

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Copley Hospital, Inc.	VT	Critical Access Hospital	$0	$525.5K
Jeffrey Harris	GA	Obstetrics & Gynecology Physician	$4.5K	$282.4K
Janet Kirwan	VT	Cardiovascular Disease Physician	$175.6K	$0
Innocent Ezenwa	NV	Sleep Medicine (Internal Medicine) Physician	$90.6K	$0
Veronika Jedlovszky	VT	Pulmonary Disease Physician	$88.6K	$0
Philip Kiely	VT	Family Medicine Physician	$87.4K	$0
Kevin Carey	VT	Cardiovascular Disease Physician	$86.1K	$0
Daniel Wolfson	VT	Emergency Medicine Physician	$72.1K	$0
Jennifer Peters	VT	Internal Medicine Physician	$67K	$0
Ryan Duffy	NH	Orthopaedic Surgery Physician	$63.8K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Nfi Vermont, Inc	VT	Clinic/Center	$0	$33.6M
Bla Partners, LLC	VT	Clinical Medical Laboratory	$0	$15.2M
Timberlane Dental Group	VT	Orthodontics and Dentofacial Orthopedics Dentistry	$0	$7.5M
Tms Vt, LLC	VT	Durable Medical Equipment & Medical Supplies	$0	$2.9M
Michelle Young	VT	Ophthalmology Physician	$2.1M	$0
Howard Center Inc	VT	Psychiatry Physician	$0	$2M
Vermont Eye Surgery & Laser Center	VT	Ambulatory Surgical Clinic/Center	$1.8M	$2.7K
David Weissgold	VT	Ophthalmology Physician	$1.7M	$0
Surgi-care Inc	VT	Prosthetic/Orthotic Supplier	$0	$1.7M
City Of So Burlington	VT	Ambulance	$400.9K	$1M

Steffen Hillemann — 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