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

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

Darren Shirley (NPI 1992786289)

Field	Value
Entity Type	Individual
Organization	Darren Shirley
Address	5955 Zeamer Ave
City	Jber
State	AK
ZIP	99506
Taxonomy	Diagnostic Radiology Physician
NPI Enumerated	November 14, 2005

Payer Source	Total Paid
Medicare	$951K
Medicaid	$0

Key Findings

This provider’s Medicare footprint is the dominant and effectively sole public-payer activity on file: total Medicare revenue is $951K while there is no Medicaid billing on file, indicating a single-payer profile in the available claims data. Analysts should treat Medicaid participation as absent rather than minimal when evaluating payer mix or network breadth for this NPI.

Revenue concentration is high: the precomputed top-3 Medicare codes by revenue account for 59.4% of this provider’s total Medicare revenue. Those top three are A9596 ($229.4K, 26.8%), 78815 ($219K, 25.6%), and 74177 ($61.1K, 7.1%), showing most dollars come from PET radiopharmaceuticals/PET–CT and abdominal CT services.

The code mix points to a diagnostic imaging operation with a strong oncology and cross-sectional imaging focus. High-revenue items include radiopharmaceuticals such as A9596 and A9552 and hybrid imaging CPTs like 78815/78816, alongside substantial CT and MRI volumes (e.g., 74177, 74183, 72197), consistent with a practice equipped for PET/CT and advanced CT/MR studies.

Competitive standing varies by code: A9596 ranks #36 of 168 (78th percentile) and is characterized as typical, unremarkable volume for that tracer; by contrast 78815 ranks #415 of 6566 (94th percentile) and is labeled notably above typical national volume, and 74177 ranks #1097 of 23621 (95th percentile) and is also described as notably above typical national volume. These rankings indicate the provider is a modest-to-strong national participant for select high-value oncology imaging services rather than a dominant national operator across all radiology codes.

Beyond the top three, several CT, MRI, and ultrasound codes are at very high national percentiles—examples include 74183 (94th percentile, notably above typical), 71260 (97th percentile, notably above typical), and 76770 (97th percentile, notably above typical). This pattern signals a broad, high-volume cross-sectional and ultrasound practice that extends the provider’s scope beyond isolated PET studies.

Operational implications from per-claim payments and code mix: A9596 shows a high average paid per claim ($828) and A9552 also pays at a higher per-claim rate ($306), reflecting the expensive radiopharmaceutical inputs and specialized handling for PET imaging. Combined with frequent billing for fused PET/CT studies (78815, 78816 at $600 and $591 avg paid/claim respectively), the practice likely carries the capital and supply requirements of PET-capable imaging services.

The provider has long tenure in the NPI registry—enumerated on 2005-11-14 (≈21 years)—which supports the interpretation of established operations and sustained billing patterns rather than a short-term billing spike. Longevity increases the likelihood of stable referral relationships and operational continuity in the imaging services observed.

From a payer-risk and network perspective, the absence of Medicaid billing alongside concentrated Medicare revenue suggests limited exposure to state Medicaid networks; this single-payer skew may reduce leverage in Medicaid contracting and should be noted when assessing in-state access to PET/CT and high-end cross-sectional imaging services. At the same time, the provider’s above-typical national volumes in several high-value CPTs position it as a meaningful regional resource for oncology imaging within Medicare.

Medicare: Complete Services Breakdown

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

84 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
A9596	Gallium ga-68 gozetotide, diagnostic, (illuccix), 1 millicurie	280	$830	$229.4K
78815	PET and CT scans are both standard imaging tools that allow doctors to evaluate the location and metabolic actions of tumors or cancer inside the body before beginning an active treatment regimen.…	370	$600	$219K
74177	The provider performs computed tomography of the abdomen and pelvis with contrast material to diagnose the cause of abdominal or pelvic pain or other abnormalities of the internal organs.	410	$150	$61K
A9552	Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries	120	$310	$36.7K
74183	The provider performs magnetic resonance imaging of the structures and organs of the abdomen, initially without control and then with additional sequences after injection of contrast.	180	$210	$36.1K
72197	In this diagnostic procedure, the provider performs magnetic resonance imaging (MRI) of the pelvis first without using contrast and again after injecting contrast material.	140	$260	$35.2K
78816	The patient is injected with a radiopharmaceutical tracer called FDG (fluoro–deoxyglucose, a radioactive substance containing glucose) about one hour before the imaging is scheduled to begin. The…	60	$590	$32.5K
71260	In this diagnostic procedure, the provider performs a computed tomography, or CT, examination of the thorax using contrast material.	320	$80	$25.3K
77067	The provider takes two X–ray views of each breast for routine screening and may use specially designed computer software to help identify any potential abnormalities within the images; the software…	130	$150	$19.8K
71250	In this diagnostic procedure, the provider performs a computed tomography, or CT, examination of the thorax without using contrast material.	240	$80	$18.3K

Showing 1–10 of 84

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 84 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Alaska Distribution

Darren Shirley — 8 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Alaska

Full comparison — all codes billed, vs. state median

84 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
A9596	2	10	220	$830	$170.1K
78815	2	20	30	$1,000	$106.7K
78816	3	10	60	$1,050	$55.8K
77067	22	40	140	$80	$40.1K
A9552	3	10	30	$310	$34.1K
77063	20	40	130	$40	$18.3K
74177	4	60	80	$110	$15.5K
72197	2	10	40	$230	$14.5K
72148	9	50	40	$120	$7.5K
74183	1	20	20	$160	$6.6K

Showing 1–10 of 84

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Columbus Radiology Corp	OH	Diagnostic Radiology Physician	$0	$49.9M
Jefferson Radiology, PC	CT	Diagnostic Radiology Physician	$0	$14M
Alaska Radiology Associates Inc	AK	Body Imaging Physician	$0	$3.8M
Imaging Associates, LLC	AK	Diagnostic Radiology Physician	$0	$1.2M
David Greenberg	OR	Diagnostic Radiology Physician	$997.3K	$0
Ryan O'hara	UT	Vascular & Interventional Radiology Physician	$892.2K	$0
Scott Naspinsky	AK	Diagnostic Radiology Physician	$836.9K	$0
Gerald York	AK	Diagnostic Radiology Physician	$719.8K	$0
Gregory Bortoff	NC	Diagnostic Radiology Physician	$587.7K	$0
Heather Tauschek	AK	Diagnostic Radiology Physician	$523K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Providence Health & Services Washington	AK	General Acute Care Hospital	$0	$2.8M
Kenneth Boomgaard	AK	Family Medicine Physician	$296.3K	$0
Ross Dodge	AK	Internal Medicine Physician	$117.5K	$0
Nathan Frank	AK	Optometrist	$116.5K	$0
Paul Basel	AK	Emergency Medicine Physician	$114K	$0
Jaron Coombs	AK	Emergency Medicine Physician	$107.9K	$0
David Otten	AK	Emergency Medicine Physician	$107.1K	$0
Devin Burrup	AK	Emergency Medicine Physician	$100K	$0
Zachary Gibson	AK	Emergency Medicine Physician	$92.9K	$0
David Bigelow	AK	Diagnostic Radiology Physician	$92.8K	$0

Darren Shirley — Billing Profile & Reimbursement Data

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Darren Shirley — 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