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 Armed Forces Pacific for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Armed Forces Pacific 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. Armed Forces Pacific (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.

Ik Ahn (NPI 1215917893)

Field	Value
Entity Type	Individual
Organization	Ik Ahn
Address	Psc 490, Box 9095
City	Fpo
State	AP (Armed Forces Pacific)
ZIP	96538
Taxonomy	Anesthesiology Physician
NPI Enumerated	January 19, 2006

Payer Source	Total Paid
Medicare	$31.7K
Medicaid	$0

Key Findings

This provider is an anesthesiology physician with a long tenure in the Medicare program, having an NPI enumerated on 2006-01-19 (~20 years ago), indicating roughly two decades of participation in federal billing and likely established referral relationships and clinical workflows. The longevity supports interpretation of current billing patterns as settled practice behavior rather than a short-term anomaly.

Medicare is effectively the only payer on file for this provider: total Medicare revenue is $31.7K and there is no Medicaid billing on file. This makes the provider functionally single-payer from a claims-data perspective, so analyses of service mix, utilization, and competitive position should focus on Medicare activity only.

Revenue concentration is high: the top 3 Medicare codes by revenue account for 94.8% of this provider's total Medicare revenue. That concentration implies the practice is specialized around a small set of anesthesia services — primarily lower-extremity joint arthroplasty anesthesia and femoral-nerve regional blocks — rather than a broad anesthesia case mix.

The dominant revenue driver is code 01402 (anesthesia for total knee arthroplasty), which generated $15.8K or 49.9% of the provider's Medicare revenue and places the provider at rank #465 of 13,336 nationally (96th percentile). This ranking and the descriptor “notably above typical national volume” indicate the provider handles an unusually large volume of knee arthroplasty anesthesia relative to most peers, suggesting a local or referral specialization in total knee arthroplasty cases.

Code 01214 (anesthesia for total hip arthroplasty) is the second major contributor with $11.2K or 35.3% of Medicare revenue and ranks #239 of 5,597 nationally (95th percentile). Like 01402, this high percentile for hip arthroplasty anesthesia reinforces that the provider’s practice is concentrated on major lower-extremity joint arthroplasty anesthesia and that this provider is a relatively high-volume performer for those procedures compared with national peers.

The third significant code, 64447 (femoral nerve injection), accounts for $3.1K or 9.7% of Medicare revenue and ranks #517 of 8,489 nationally (94th percentile), which is described as typical/unremarkable volume for this code. Together with a smaller contribution from 64999 (3.2% of revenue) and 64415 (2.0% of revenue), the mix points to a practice pattern that combines intraoperative anesthesia for joint arthroplasties with regional nerve-block procedures, consistent with an anesthesiology practice supporting orthopedic surgery.

Competitive standing by code shows strength in specific niches: for both joint arthroplasty anesthesia codes (01402 and 01214) the provider sits in the mid-90s national percentiles and is characterized as “notably above typical national volume,” which signals a competitive advantage in total knee and hip arthroplasty anesthesia within the national provider set. For regional block codes the provider sits in high percentiles but is described as typical or unremarkable in volume, indicating that the true differentiation is their high arthroplasty case volume rather than block procedures.

Because Medicaid billing is absent, this provider’s payer mix is highly skewed to Medicare, which limits inference about commercial or Medicaid-facing business lines and suggests either practice demographics (patient population skewed to Medicare-aged patients) or contractual choices that result in negligible Medicaid activity. Analysts should treat findings as Medicare-centric and avoid extrapolating to Medicaid without additional data.

Medicare: Complete Services Breakdown

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

5 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
01402	The provider performs anesthesia services for a patient undergoing an open or arthroscopic total knee arthroplasty.	60	$270	$15.8K
01214	The provider performs anesthesia services for a patient undergoing an open total hip arthroplasty.	40	$270	$11.2K
64447	The provider injects one or more anesthetic agents and/or a steroid into the area of the femoral nerve, which innervates the leg and foot. Report this code for one or more injections during a single…	60	$50	$3.1K
64999	Use 64999 to report procedures in the nervous system that do not have a specific code.	60	$20	$1K
64415	The provider injects one or more anesthetic agents and/or a steroid into the brachial plexus area, a group of nerves in the arm that originates in the neck. Report this code for one or more…	10	$60	$630

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 5 CPT/HCPCS codes. Note: this provider's state, "AP," is a US military postal designation for Armed Forces stationed in the Asia-Pacific region — not a traditional US state; the State panel below benchmarks against other providers coded under the same designation.

View: State1 / 2

Claims Volume vs. Armed Forces Pacific Distribution

Ik Ahn — 0 of 5 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Armed Forces Pacific

Full comparison — all codes billed, vs. state median

5 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
01402	1	10	60	$270	$15.8K
01214	1	10	40	$270	$11.2K
64447	1	10	60	$50	$3.1K
64999	1	10	60	$20	$1000
64415	1	10	10	$60	$630

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Stephen Wilson	MD	Certified Registered Nurse Anesthetist	$54.1K	$0
Robert Wong	MD	Critical Care Medicine (Anesthesiology) Physician	$40.1K	$0
Charles Lin	MD	Anesthesiology Physician	$39.8K	$0
Brigid Baroody	MD	Anesthesiology Physician	$30.2K	$0
Mini Varghese	MD	Certified Registered Nurse Anesthetist	$29.4K	$0
Christopher Wu	WA	Anesthesiology Physician	$22.3K	$0
Abraham Lin	MD	Anesthesiology Physician	$20.8K	$0
Gabriel Hernandez	MD	Anesthesiology Physician	$17.1K	$0
Reynaldo Mia	MD	Anesthesiology Physician	$12.7K	$0
Rachel Miller	MD	Certified Registered Nurse Anesthetist	$12.4K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
William Reynolds	AP (Armed Forces Pacific)	Diagnostic Radiology Physician	$105.1K	$0
Ramona Domen	AP (Armed Forces Pacific)	Certified Registered Nurse Anesthetist	$57.7K	$0
Blaed Gerhart	AP (Armed Forces Pacific)	Physician Assistant	$9.9K	$0

Ik Ahn — Billing Profile & Reimbursement Data

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Ik Ahn — 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