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

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

Timothy Greenan (NPI 1073562088)

Field	Value
Entity Type	Individual
Organization	Timothy Greenan
Address	14915 Broschart Road
City	Rockville
State	MD
ZIP	20850
Taxonomy	Diagnostic Radiology Physician
NPI Enumerated	May 8, 2006

Payer Source	Total Paid
Medicare	$240.9K
Medicaid	$0

Medicare: Complete Services Breakdown

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

8 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
73721	In this diagnostic procedure, the provider performs magnetic resonance imaging of a lower extremity joint without using contrast material.	1,320	$90	$119.2K
73221	In this diagnostic procedure, the provider performs a magnetic resonance imaging, or MRI imaging, of any of the joints of a patient’s upper extremity, which can be the shoulder, elbow, wrist, or…	950	$90	$86.5K
73718	In this diagnostic procedure, the provider performs a magnetic resonance imaging study of a patient’s lower extremity other than a joint, without the use of contrast material.	190	$100	$20.1K
73218	In this diagnostic procedure, the provider performs a magnetic resonance imaging imaging of a patient’s upper extremity for a location other than the joint of the extremity. He performs the procedure…	40	$140	$6.1K
72148	In this diagnostic procedure, the provider performs magnetic resonance imaging (MRI) of the lumbar spinal canal and contents without using contrast.	40	$90	$3.5K
72195	In this procedure, the provider performs magnetic resonance imaging (MRI) of the pelvis area without contrast material.	30	$110	$2.6K
72141	In this diagnostic procedure, the provider performs a magnetic resonance imaging (MRI) study of the cervical spinal canal and contents without using contrast material.	30	$70	$2.3K
A9575	Injection, gadoterate meglumine, 0.1 ml	2,850	$0	$0

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 8 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Maryland Distribution

Timothy Greenan — 4 of 7 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Maryland

Full comparison — all codes billed, vs. state median

8 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
72148	172	240	80	$120	$16.8K
73721	1	130	70	$130	$16.1K
73221	1	110	60	$130	$12.6K
72141	140	210	50	$110	$8.3K
73718	1	80	30	$140	$5.2K
73218	2	20	20	$190	$4.5K
72195	17	60	20	$150	$3.3K
A9575	118	140	12,860	$1	$2.4K

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Community Radiology Associates Inc	MD	Diagnostic Radiology Physician	$0	$27.8M
Michael Morris	MD	Diagnostic Radiology Physician	$12M	$0
Delaware Radiology Associates PA	DE	Diagnostic Radiology Physician	$0	$4.4M
Ethan Spiegler	MD	Nuclear Radiology Physician	$2.9M	$0
Frederic Yeganeh	MD	Diagnostic Radiology Physician	$2.8M	$0
Karolyn Kerr	NY	Diagnostic Radiology Physician	$1.8M	$676.7K
John Schreiber	MD	Diagnostic Radiology Physician	$2.3M	$0
Thomas Lank	MD	Diagnostic Radiology Physician	$2.2M	$0
Danilo Espinola	MD	Nuclear Radiology Physician	$1.8M	$0
Peggy Chan	NY	Nuclear Medicine Physician	$1.7M	$56.8K

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Mep Health, LLC	MD	Emergency Medicine Physician	$0	$105.9M
Montgomery County Public Schools Services	MD	Counselor	$0	$56.8M
A Plus Adult Medical Day Care Center Corporation	MD	Adult Day Care Clinic/Center	$0	$30.1M
Pediatrix Medical Group Of The Mid-atlantic PC	MD	Maternal & Fetal Medicine Physician	$0	$28.4M
Adult Day Health, Inc.	MD	Adult Day Care Clinic/Center	$0	$17M
Jarher Incorporated	MD	Adult Day Care Clinic/Center	$0	$12M
Cornerstone Montgomery, Inc.	MD	Community/Behavioral Health Agency	$0	$11.6M
Asthma & Allergy Center LLC	MD	Allergy & Immunology Physician	$0	$11.5M
Montgomery Hospice Inc	MD	Community Based Hospice Care Agency	$0	$10.3M
Adventist Healthcare, Inc.	MD	General Acute Care Hospital	$0	$9.7M

Timothy Greenan — Billing Profile & Reimbursement Data

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Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References