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 District of Columbia for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to District of Columbia 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. District of Columbia (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.

Joshua Yamamoto (NPI 1639172174)

Field	Value
Entity Type	Individual
Organization	Joshua Yamamoto
Address	3301 New Mexico Ave Nw
City	Washington
State	DC
ZIP	20016
Taxonomy	Cardiovascular Disease Physician
NPI Enumerated	May 30, 2005

Payer Source	Total Paid
Medicare	$688.3K
Medicaid	$0

Key Findings

This provider’s workstream centers on outpatient cardiology and implanted rhythm–management devices: the top revenue drivers are 33285 (implant of a subcutaneous cardiac rhythm monitor), 93306 (transthoracic echocardiography), and 99213 (established office visits). The mix of device implant codes and high-volume imaging and E/M suggests a practice that combines procedural device work with a busy ambulatory clinic and diagnostic services.

Revenue is highly concentrated in a small set of Medicare codes: the precomputed top three codes account for 67.3% of the provider’s total Medicare revenue, and the practice has generated $688.3K from Medicare overall. Within that concentration, 33285 contributes 33.4% of Medicare revenue, 93306 contributes 18.1%, and 99213 contributes 15.8%, so reimbursement risk or reimbursement changes affecting these specific services would materially affect total revenue.

Payer mix is effectively single–payer Medicare: this provider reports $688.3K in total Medicare revenue and has no Medicaid billing on file, so Medicaid exposure is nil and all analyzed revenue flows are from Medicare. That concentration means analyses of competitiveness and utilization should focus on Medicare reimbursement and peer benchmarks rather than state Medicaid patterns.

The provider’s national competitive standing is mixed across key codes. 99213 is an extreme outlier (rank #1838 of 457151, 100th percentile), indicating exceptionally high outpatient visit volume relative to national peers, while 93306 ranks #1030 of 24624 (96th percentile) and is described as notably above typical national volume; by contrast, 33285 ranks #103 of 1716 (94th percentile) but is labeled in the source as typical/unremarkable for that code, implying implant volume is not as dominant versus peers as the large share of revenue might imply.

Several specific services show truly exceptional utilization versus national peers and point to concentrated clinical capabilities: 93285 (repeat adjustments/testing of subcutaneous cardiac rhythm monitors) ranks #10 of 620 (99th percentile; extreme outlier) and 93880 (duplex arterial scanning) ranks #192 of 21316 (99th percentile; extreme outlier). These rankings suggest the provider is a high-volume performer in device reprogramming/management and noninvasive vascular diagnostics, beyond just the implant procedures themselves.

Lower–revenue remote monitoring and prolonged ECG services are present but small on the revenue ledger, consistent with a device-focused practice that also offers monitoring infrastructure: G2066 generated $2.3K, 93298 generated $1.4K, and 93246 generated $891. These items support an ongoing device follow-up capability (remote interrogation and extended ambulatory ECG), but they do not materially contribute to overall Medicare revenue.

The provider has long tenure in Medicare billing, with an NPI enumerated 2005-05-30 (~21 years ago), which supports interpretation of utilization patterns as established rather than transient. Long standing enrollment combined with concentrated device and imaging revenue suggests a stable, specialized service line that has developed over time.

From a payer or contracting perspective, the combination of very high E/M volume (99213 extreme outlier) and concentrated device/imaging revenue (top three codes = 67.3% of Medicare revenue) creates both leverage and exposure: the practice’s negotiating profile will be driven by device implantation/management and high ambulatory throughput, but it is also exposed to any Medicare policy or reimbursement changes for 33285, 93306, or 99213 and thus merits focused utilization review on those codes.

Medicare: Complete Services Breakdown

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

23 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
33285	The provider inserts a cardiac rhythm monitor with self–contained electrodes into a pocket in the tissues beneath the patient's skin and programs the device according to manufacturer’s directions.	60	$3,970	$230.3K
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…	770	$160	$124.7K
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…	1,580	$70	$108.9K
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…	520	$170	$86.8K
93351	In this procedure, the provider performs continuous transthoracic echocardiography both at rest and after exercise and reviews images evaluating and assessing global and ventricular performance and…	140	$200	$26.7K
99497	The provider discusses and shares planning with a patient, his family, or an individual representing the patient, regarding the future health care needs of the patient. Use this code for the first 30…	270	$70	$18.3K
93978	The provider performs a complete study of the aorta, the inferior vena cava or IVC, the iliac vasculature, or bypass grafts using duplex Doppler ultrasound scanning. He performs the study to assess…	120	$150	$17.3K
93280	In this service, the provider performs a face to face evaluation and then optimally adjusts the existing parameters of an already implanted dual lead pacemaker system. He changes various operating…	280	$60	$16.8K
99204	The provider sees a new 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 provider…	100	$130	$12.3K
93285	In this service, the provider, a physician or other qualified healthcare professional, performs a face–to–face evaluation and repeatedly adjusts and tests and readjusts the parameters of an already…	250	$50	$11.8K

Showing 1–10 of 23

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 23 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. District of Columbia Distribution

Joshua Yamamoto — 9 of 23 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — District of Columbia

Full comparison — all codes billed, vs. state median

23 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
33285	1	10	40	$2,770	$116.2K
93306	5	80	240	$110	$32.4K
93880	1	60	40	$130	$11.1K
99490	18	20	100	$50	$10.8K
99213	4	1,200	50	$70	$8.5K
33208	4	10	20	$430	$8.2K
93351	1	10	20	$200	$6.5K
99204	97	670	30	$130	$6.4K
93971	58	70	50	$60	$6K
93978	1	10	40	$140	$6K

Showing 1–10 of 23

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Jack Flyer	MD	Cardiovascular Disease Physician	$906.4K	$0
Joseph Vassallo	MD	Cardiovascular Disease Physician	$550.6K	$0
Eva Hausnerova	MD	Specialist	$475.3K	$0
Barry Talesnick	MD	Cardiovascular Disease Physician	$471.4K	$0
Nancy Davenport	DC	Interventional Cardiology Physician	$353.4K	$0
Robert Marshall	MD	Cardiovascular Disease Physician	$351.2K	$0
William Battle	MD	Cardiovascular Disease Physician	$130.6K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Lucy Webb Hayes National Training School For Deaconesses & Missionarie	DC	General Acute Care Hospital	$0	$19.1M
Jeffrey Steinberg	DC	Foot & Ankle Surgery Podiatrist	$13.3M	$0
Friendship Place	DC	Case Management Agency	$0	$5.6M
Wisconsin Ave Psychiatric Center Inc	DC	Psychiatric Hospital	$0	$3.1M
Iona Senior Services	DC	Adult Health Nurse Practitioner	$0	$1.1M
Mary Ella Carter	DC	Plastic Surgery Physician	$942.2K	$0
Jaydot LLC	DC	Case Management Agency	$0	$820.6K
Edward Tanner	DC	Gynecologic Oncology Physician	$786.3K	$2.1K
Brandi Page	DC	Radiation Oncology Physician	$761K	$0
Wisconsin Avenue Psychiatric Center	DC	Psychiatry Physician	$0	$678K

Joshua Yamamoto — 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