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

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

Guam Medical Imaging Center LLC (NPI 1770707945)

Field	Value
Entity Type	Organization
Organization	Guam Medical Imaging Center LLC
Address	472 Chalan San Antonio
City	Tamuning
State	GU
ZIP	96913
Taxonomy	Nuclear Radiology Physician
NPI Enumerated	April 12, 2007

Payer Source	Total Paid
Medicaid	$503.2K
Medicare	$0

Key Findings

GUAM MEDICAL IMAGING CENTER LLC reports no Medicare billing on file and $503.2K in lifetime Medicaid revenue, making it effectively a single-payer (Medicaid) operation in the available claims data rather than a mixed Medicare/Medicaid provider. The absence of Medicare revenue suggests limited payer diversification in the dataset and that analyses of this entity should treat Medicaid patterns as the primary signal of its business activity.

Revenue is highly concentrated: the precomputed top 3 Medicaid codes by revenue account for 93.9% of this provider's total Medicaid revenue, driven by 78452 (48.5%), A9500 (38.2%), and J2785 (7.2%). This concentration indicates that a very small set of procedures dominates the provider’s Medicaid income stream rather than a broad mix of disparate services.

The code mix points to a focused nuclear cardiology service line: 78452 (SPECT myocardial perfusion imaging), A9500 (technetium tc-99m sestamibi radiopharmaceutical), and J2785 (regadenoson injection for pharmacologic stress) together make up the bulk of activity. These three codes—along with the presence of stress ECG codes 93016–93018—indicate the practice primarily performs myocardial perfusion studies using radiotracers and pharmacologic or exercise stress protocols.

Claim volumes underline operational throughput: 78452 and A9500 each have 787 claims (reported together with $244K and $192K in revenue respectively), and J2785 has 380 claims generating $36.5K. The matched high claim counts for both the imaging code and the radiopharmaceutical (787 claims each) are consistent with an integrated imaging workflow where dose supply and imaging studies occur in parallel.

Competitive standing within the state Medicaid dataset is effectively exclusive for the core nuclear cardiology codes: 78452 and A9500 both rank #1 of 1 providers in-state and are labeled 0th percentile with no state peer volume comparison available, which indicates this provider is the sole billed source in the available Medicaid extract for those services rather than a measurable peer competitor. That uniqueness limits in-state benchmarking and suggests analysts should treat comparative conclusions cautiously.

Ancillary stress-test ECG codes (93017, 93016, 93018) appear as routine, lower-revenue services supporting the main imaging business—93017 accounts for $14.4K (2.9%), 93016 for $9.9K (2.0%), and 93018 for $6.4K (1.3%) of Medicaid revenue. Each of these codes ranks #1 among 2–3 providers in-state and is labeled 100th percentile with "typical, unremarkable volume for this code," indicating these are common, expected adjunct services rather than distinguishing revenue drivers.

The provider’s NPI has been enumerated since 2007-04-12 (~19 years ago), indicating an established presence in TAMUNING, GU; this tenure supports the interpretation that the concentrated nuclear cardiology activity is sustained rather than a short-lived billing spike. Longevity reinforces that observed patterns reflect an operational specialty rather than a transient practice change.

From a risk and strategic perspective, the heavy dependence on a small set of nuclear cardiology codes and sole representation in the state Medicaid data for core codes creates exposure to policy or reimbursement changes targeting imaging or radiopharmaceuticals. Because there is no Medicare billing on file, any changes in Medicaid coverage or reimbursement for 78452, A9500, or J2785 would disproportionately affect this provider’s revenue base without offset from Medicare volumes.

Medicaid: Complete Services Breakdown

Every CPT/HCPCS code this provider has billed to Medicaid, with claims volume, average payment, and total revenue.

7 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
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…	790	$310	$244K
A9500	Technetium tc-99m sestamibi, diagnostic, per study dose	790	$240	$192K
J2785	Injection, regadenoson, 0.1 mg	380	$100	$36.5K
93017	The provider records the electrical activity of the heart to examine for any abnormality in its functioning by obtaining blood pressure and electrocardiograph readings at regular intervals with the…	760	$20	$14.4K
93016	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…	710	$10	$9.9K
93018	The provider analyzes and interprets the recording of the electrical activity of the heart to examine for any abnormality in its functioning, including blood pressure and electrocardiograph readings…	710	$10	$6.4K
J0280	Injection, aminophyllin, up to 250 mg	60	$1	$110

Medicaid: Competitive Analysis & Benchmarks

How this provider's Medicaid billing volume and revenue compare to other Guam providers billing the same CPT/HCPCS codes.

Claims Volume vs. Guam Distribution

Guam Medical Imaging Center LLC — 3 of 7 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Guam

Full comparison — all codes billed, vs. Guam median

7 rows

CPT/HCPCS Code	Description	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
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…	1	10	790	$310	$244K
A9500	Technetium tc-99m sestamibi, diagnostic, per study dose	1	10	790	$240	$191.8K
J2785	Injection, regadenoson, 0.1 mg	1	10	380	$100	$36.4K
93017	The provider records the electrical activity of the heart to examine for any abnormality in its functioning by obtaining blood pressure and electrocardiograph readings at regular intervals with the…	1	10	420	$20	$8.5K
93016	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…	1	10	90	$10	$4K
93018	The provider analyzes and interprets the recording of the electrical activity of the heart to examine for any abnormality in its functioning, including blood pressure and electrocardiograph readings…	1	10	410	$10	$3.7K
J0280	Injection, aminophyllin, up to 250 mg	1	10	60	$1	$140

Nearby Providers

Other providers in the same ZIP code as Guam Medical Imaging Center LLC, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Thomas Lee	GU	Dentist	$0	$10.9M
Guam Memorial Hospital	GU	General Acute Care Hospital	$0	$3.5M
Rsa - Tumon, LLC	GU	End-Stage Renal Disease (ESRD) Treatment Clinic/Center	$0	$2.9M
Robert Yang	GU	Dentist	$0	$2.4M
Antonio Garcia	GU	Pediatrics Physician	$0	$2.2M
Ma Gladys Linsangan	GU	Pediatrics Physician	$0	$2.2M
Ari Katerelos	GU	Radiation Oncology Physician	$2.1M	$0
Guam X-ray	GU	Vascular & Interventional Radiology Physician	$0	$2.1M
Sarah Clegg	GU	General Practice Dentistry	$0	$1.7M
Peter Kh Go	GU	Surgery Physician	$152.8K	$1.5M

Guam Medical Imaging Center LLC — Billing Profile & Reimbursement Data

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Guam Medical Imaging Center LLC — Billing Profile & Reimbursement Data

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Key Findings

Medicaid: Total Revenue Breakdown by CPT/HCPCS Code

Medicaid: Complete Services Breakdown

Medicaid: Competitive Analysis & Benchmarks

Nearby Providers

Frequently Asked Questions

References