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

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

Leonid Shunyakov (NPI 1396709895)

Field	Value
Entity Type	Individual
Organization	Leonid Shunyakov
Address	1501 N Oakland Ave
City	Bolivar
State	MO
ZIP	65613
Taxonomy	Medical Oncology Physician
NPI Enumerated	April 13, 2006

Payer Source	Total Paid
Medicare	$3.3M
Medicaid	$0

Key Findings

This provider’s claim mix is characteristic of an infusion-centered medical oncology practice: the top revenue-generating services are high-use immunotherapy and oncology injections (J9299, J9271, J9228) together with supportive bone-targeted therapy (J0897) and standard chemotherapy administration codes like 96413 and 96401. The prominence of these injectable agents and infusion administration CPTs indicates day-to-day operations are organized around drug delivery and infusion throughput rather than predominantly office-based management alone.

Payer mix is effectively single-payer Medicare: lifetime Medicare revenue is $3.3M and there is no Medicaid billing on file. This concentration means the provider’s scale and cash flow are driven almost entirely by Medicare reimbursement policies and beneficiary volume.

Revenue concentration is high — the precomputed metric shows the top 3 Medicare codes by revenue account for 75.0% of this provider's total Medicare revenue. Those top three codes are J9299 (34.2% of Medicare revenue), J9271 (20.6%), and J9228 (20.1%), so a small set of high-cost biologic injections dominate the financial picture.

J9299 (nivolumab) is the single largest revenue driver with 47K claims and $1.1M revenue (34.2% of Medicare revenue); it ranks #18 of 505 providers nationally (97th percentile; notably above typical national volume for this code). That placement signals an unusually high national-level throughput for nivolumab relative to peers and identifies this code as a competitive strength.

J9271 (pembrolizumab) and J9228 (ipilimumab) together supply another large share of revenue: J9271 shows 15.8K claims and $679.4K (20.6%) with a national rank of #628 of 1841 (65th percentile; typical), while J9228 shows 5.1K claims and $661.6K (20.1%) with a national rank of #5 of 12 (64th percentile; typical). Both are material to Medicare revenue but their national rank information suggests J9271 is a common-volume code for many peers and J9228 sits in a small-provider sample where volume is not unusually high.

Several codes are statistical outliers that further define the practice’s activity mix: J0897 (denosumab) has 24.7K claims and $445K revenue (13.5%) and ranks #162 of 10057 (98th percentile; extreme outlier), while 99214 (E/M for established patients) has 1.6K claims and $146.5K revenue (4.5%) and ranks #3043 of 479517 (99th percentile; extreme outlier). These extreme-percentile placements indicate outsized procedural volume in supportive bone therapy and a relatively high volume of moderate-complexity office visits compared with national peers.

Operationally, the data imply a drug-driven infusion business that requires sustained infusion capacity, nursing and pharmacy workflows, and inventory management for high-cost biologics. The presence of multiple chemotherapy administration codes (96413, 96401, 96402, 96417) alongside high-volume injectables suggests the practice delivers both immunotherapy and adjunct chemotherapy services rather than functioning solely as a consultative clinic.

Tenure and competitive posture: the provider’s NPI was enumerated 2006-04-13 (~20 years ago), indicating a long-tenured presence in the market. Combined with the high national rank for J9299 and extreme-percentile placements for J0897 and 99214, the profile points to an established, niche-focused oncology operator with prominent volume on a small set of infusion codes but otherwise typical participation on many chemotherapy administration CPTs.

Medicare: Complete Services Breakdown

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

40 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
J9299	Injection, nivolumab, 1 mg	46,960	$20	$1.1M
J9271	Injection, pembrolizumab, 1 mg	15,800	$40	$679.4K
J9228	Injection, ipilimumab, 1 mg	5,050	$130	$661.5K
J0897	Injection, denosumab, 1 mg	24,720	$20	$445K
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…	1,590	$90	$146.5K
96413	Chemotherapy is a therapeutic procedure used for the treatment of cancer via the use of chemical agents. These chemical agents (drugs) work on the cancerous cells of the body to destroy them. These…	680	$90	$60.8K
J1454	Injection, fosnetupitant 235 mg and palonosetron 0.25 mg	140	$350	$47.1K
J1437	Injection, ferric derisomaltose, 10 mg	1,600	$20	$27.2K
96367	The provider administers an additional intravenous infusion or infusions, after an initial infusion, of a different medication or substance for a period up to one hour to prevent, treat, or diagnose…	820	$20	$16.4K
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…	260	$60	$15.6K

Showing 1–10 of 40

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 40 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Missouri Distribution

Leonid Shunyakov — 13 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Missouri

Full comparison — all codes billed, vs. state median

40 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
J9228	1	10	5,050	$130	$659.5K
J9271	9	40	9,100	$40	$502K
J9299	1	20	14,170	$20	$360.3K
J0897	4	210	2,400	$20	$82.4K
J1437	7	10	2,500	$20	$43.5K
J1454	1	10	90	$340	$29.2K
96413	5	160	140	$100	$19.1K
99214	26	8,960	100	$80	$13.9K
99213	1,127	8,730	70	$50	$7K
99215	1,712	2,300	30	$110	$6.8K

Showing 1–10 of 40

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Citizens Memorial Hospital District	MO	General Acute Care Hospital	$0	$19.2M
Citizens Memorial Healthcare District	MO	Land Ambulance	$0	$7.4M
Mark Fesen	KS	Medical Oncology Physician	$1.5M	$0
Claudia Perez-tamayo	KS	Therapeutic Radiology Physician	$1.2M	$0
Central Care, PA	KS	Specialist	$0	$1.2M
Audrik Perez-rodriguez	KS	Medical Oncology Physician	$1.1M	$0
Robert Forsyth	MO	Clinical Psychologist	$6.4K	$519.9K
Elshami Elamin	KS	Medical Oncology Physician	$459.4K	$0
Frederick Emge	ID	Pediatric Cardiology Physician	$0	$422.8K
Walter Watts	OK	Radiation Oncology Physician	$422.3K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Preferred Family Healthcare, Inc.	MO	Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility	$0	$12.4M
Mashburn Residential Learning Center	MO	Intellectual and/or Developmental Disabilities Residential Treatment Facility	$0	$11.9M
Home Court Advantage, Inc.	MO	Psychiatric Residential Treatment Facility	$0	$6.6M
Polk County Senate Bill 40	MO	Case Management Agency	$0	$6.2M
Penelope Harris	MO	Hematology & Oncology Physician	$247.5K	$0
Troy Morrison	MO	Orthopaedic Surgery Physician	$208.7K	$0
Matthew Ericksen	MO	Otolaryngology/Facial Plastic Surgery Physician	$142.5K	$7.5K
Juris Simanis	MO	Sports Medicine (Family Medicine) Physician	$123.7K	$4.6K
Joseph Moore	MO	Interventional Cardiology Physician	$100.5K	$140
Murphy Mastin	MO	Dermatology Physician	$91.8K	$0

Leonid Shunyakov — 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