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

Why is the Medicaid comparison limited to North Carolina 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. North Carolina (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.

Kirsten Siwy (NPI 1003559832)

Field	Value
Entity Type	Individual
Organization	Kirsten Siwy
Address	1003 Olde Waterford Way Ste 1b
City	Leland
State	NC
ZIP	28451
Taxonomy	Medical Physician Assistant
NPI Enumerated	April 19, 2022

Payer Source	Total Paid
Medicare	$459.8K
Medicaid	$0

Medicare: Complete Services Breakdown

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

21 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
J0129	Injection, abatacept, 10 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)	2,850	$30	$96.9K
J3262	Injection, tocilizumab, 1 mg	16,680	$10	$83.4K
J3111	Injection, romosozumab-aqqg, 1 mg	8,400	$10	$67.2K
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…	850	$70	$60.1K
J1602	Injection, golimumab, 1 mg, for intravenous use	5,450	$10	$54.5K
J0717	Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)	9,200	$1	$36.8K
J0897	Injection, denosumab, 1 mg	1,500	$20	$28.5K
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…	130	$80	$10.5K
96401	The provider administers nonhormonal, antineoplastic chemotherapy drugs subcutaneously or intramuscularly to the patient.	130	$50	$6.2K
36415	In this procedure, the provider inserts a needle into a vein to collect a blood sample.	450	$10	$3.6K

Showing 1–10 of 21

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 21 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. North Carolina Distribution

Kirsten Siwy — 1 of 20 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — North Carolina

Full comparison — all codes billed, vs. state median

21 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
J0129	65	70	9,530	$30	$393.2K
J3262	36	40	37,160	$1	$224.8K
J0717	36	40	37,400	$1	$178.8K
J1602	57	70	11,900	$10	$175.9K
J3111	27	30	13,970	$10	$135.8K
J0897	295	430	2,100	$20	$63.9K
96413	110	280	90	$90	$15.8K
99214	449	18,060	110	$80	$15.1K
96401	35	80	120	$50	$9.5K
99215	3,970	5,720	40	$110	$7.7K

Showing 1–10 of 21

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
David Snow	NC	Rheumatology Physician	$3.4M	$0
Erika Lynch	NC	Medical Physician Assistant	$69.7K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Hometown Oxygen Charlotte, LLC	NC	Oxygen Equipment & Supplies (DME)	$0	$20.1M
Brunswick Surgery Center LLC	NC	Ambulatory Surgical Clinic/Center	$2.7M	$0
Thomas Braza	NC	MOHS-Micrographic Surgery Physician	$629.2K	$0
James Adams	NC	Family Medicine Physician	$554.8K	$0
Darshan Dave	NC	Internal Medicine Physician	$492.4K	$0
Andrew Kellermann	NC	Internal Medicine Physician	$431.3K	$0
David Zub	NC	Pain Medicine Physician	$419.2K	$0
Eric Carter	NC	Physician Assistant	$313.2K	$0
Nicholas Halaby	NC	Family Medicine Physician	$280K	$0
Stefani Connel	NC	Family Medicine Physician	$161.9K	$0

Kirsten Siwy — Billing Profile & Reimbursement Data

Sign up for Kirsten Siwy — Billing Profile & Reimbursement Data policy alerts

Kirsten Siwy — Billing Profile & Reimbursement Data

Sign up for Kirsten Siwy — Billing Profile & Reimbursement Data policy alerts

Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References