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

Why is the Medicaid comparison limited to Unspecified Location 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. Unspecified Location (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.

Ersan Altun (NPI 1619258530)

Field	Value
Entity Type	Individual
Organization	Ersan Altun
Address	Acibadem Kozyatagi Hastanesi
City	Istanbul
State	XX (Unspecified Location)
ZIP	34742
Taxonomy	Diagnostic Radiology Physician
NPI Enumerated	September 6, 2011

Payer Source	Total Paid
Medicare	$62.2K
Medicaid	$0

Key Findings

This provider’s Medicare footprint is small but focused: lifetime Medicare revenue is $62.2K and there is no Medicaid billing on file, so the provider is effectively a single‑payer (Medicare) biller in the available data. The lack of Medicaid activity limits in‑state payer exposure and suggests referrals and revenue are coming primarily from Medicare or non‑Medicaid commercial sources or international/self‑pay patients.

Revenue is highly concentrated in a few cross‑sectional abdominal and pelvic imaging services: the top three Medicare codes (74177, 74183, 72197) together account for 65.8% of the provider’s total Medicare revenue, with 74177 contributing 32.2%, 74183 contributing 22.1%, and 72197 contributing 11.5%. This concentration means shifts in utilization or reimbursement for these specific codes would materially affect overall Medicare revenue.

The code mix points to an operational focus on abdominal and pelvic diagnostic imaging: leading codes are CT abdomen/pelvis with contrast (74177) and MRI abdomen (74183) and pelvis with/without contrast (72197), with additional activity in CT without contrast (74176) and multiple abdominal ultrasound codes. The presence of both cross‑sectional CT/MRI and real‑time ultrasound (e.g., 76770, 76700) implies the practice performs a blend of advanced cross‑sectional interpretation and more routine ultrasound studies, consistent with a diagnostic radiology service line centered on abdomen/pelvis imaging.

Competitive standing on individual procedures is mixed. 74183 (MRI abdomen w/ and w/o contrast) is described as "notably above typical national volume" (rank #379 of 7242, 95th percentile), indicating a relative strength and higher throughput on that MRI procedure; by contrast, 74177 and 72197 are listed as "typical, unremarkable volume" for their comparisons (74177 rank #2069 of 23621, 91th percentile; 72197 rank #764 of 4732, 84th percentile), suggesting respectable but not dominant national presence across the other top codes.

Procedure counts show a meaningful operational throughput in select services: the provider billed 324 claims for 74177 and 192 claims for 74183, and 348 claims for 74018 (single‑view abdominal radiograph), which together underline routine demand for abdominal imaging that likely includes both emergency/acute and scheduled diagnostic referrals. The mix of higher‑volume CT/MRI claims alongside many low‑unit ultrasound and radiograph claims suggests a referral pattern that sends cross‑sectional cases for advanced imaging while retaining smaller, procedure‑level studies.

Tenure on file indicates an established NPI: the provider was enumerated on 2011-09-06 (~15 years ago), reflecting a sustained presence in Medicare billing. Despite this tenure, lifetime Medicare revenue of $62.2K is modest, which is consistent with either a low‑volume independent radiology practice, a part‑time diagnostician, or a specialist who bills selectively for a narrow procedure set rather than running a high‑volume imaging center.

Several codes with notable percentile placements nevertheless carry the report label "typical, unremarkable volume," so interpretation should rely on the provided qualitative labels as well as rank. For example, 74018 appears at a high rank (#401 of 21914, 98th percentile) but is still characterized as "typical, unremarkable volume," while 74183 is explicitly flagged as "notably above typical national volume," marking it as the clearest statistical outlier and potential competitive advantage among the provider’s services.

Medicare: Complete Services Breakdown

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

20 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
74177	The provider performs computed tomography of the abdomen and pelvis with contrast material to diagnose the cause of abdominal or pelvic pain or other abnormalities of the internal organs.	320	$60	$20.1K
74183	The provider performs magnetic resonance imaging of the structures and organs of the abdomen, initially without control and then with additional sequences after injection of contrast.	190	$70	$13.8K
72197	In this diagnostic procedure, the provider performs magnetic resonance imaging (MRI) of the pelvis first without using contrast and again after injecting contrast material.	100	$70	$7.2K
74176	The provider performs computed tomography of the abdomen and pelvis without contrast material to diagnose the cause of abdominal or pelvic pain or other abnormalities of the internal organs.	90	$60	$5.5K
76770	A retroperitoneal ultrasound is a noninvasive procedure used to assess the body parts within the abdomen (i.e.Kidneys, urinary bladder, and aorta). This particular code is used when the ultrasound is…	130	$30	$3.1K
74018	Report this code for one X–ray view of the structures and organs in the abdomen to diagnose certain abdominal problems.	350	$10	$2.4K
74178	The provider performs computed tomography of the abdomen and pelvis without contrast material in one or both body regions followed by contrast material in one or both body regions and additional…	30	$70	$2.3K
76700	An abdominal ultrasound is a noninvasive procedure used to assess the body parts within the abdomen (i.e. liver, gallbladder, pancreas, bile ducts, spleen, and abdominal aorta). This particular code…	40	$30	$1.1K
76705	An abdominal ultrasound is a noninvasive procedure used to assess the body parts within the abdomen (i.e. liver, gallbladder, pancreas, bile ducts, spleen, and abdominal aorta). This particular code…	60	$20	$990
93976	The provider performs a duplex scan of a single organ or a limited area of the abdominal, pelvic, scrotal, or retroperitoneal organs. He performs the procedure to examine the vascular supply to the…	30	$30	$830

Showing 1–10 of 20

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 20 CPT/HCPCS codes. Note: this provider's state, "XX," is a placeholder CMS uses when a provider's practice-location state wasn't reported — not a traditional US state; the State panel below benchmarks against other providers coded under the same designation.

View: State1 / 2

Claims Volume vs. Unspecified Location Distribution

Ersan Altun — 9 of 14 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Unspecified Location

Full comparison — all codes billed, vs. state median

20 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
76700	1	10	230	$100	$24.4K
74177	1	10	210	$120	$23.9K
71260	1	10	160	$50	$7.5K
74183	1	10	50	$130	$6.8K
74176	1	10	60	$70	$4.1K
72197	1	10	30	$100	$3.1K
74230	1	10	60	$20	$1.2K
74178	1	10	20	$70	$1.2K
76705	1	10	50	$20	$1K
76770	1	10	30	$30	$890

Showing 1–10 of 20

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
University Of North Carolina At Chapel Hill	NC	Anesthesiology Physician	$0	$87.6M
University Of North Carolina Hospitals At Chapel Hill	NC	General Acute Care Hospital	$0	$50.7M
Veronica Kon Graversen	MS	Retina Specialist (Ophthalmology) Physician	$3.1M	$0
Ari Isaacson	NC	Vascular & Interventional Radiology Physician	$2.8M	$0
Sai Chavala	TX	Retina Specialist (Ophthalmology) Physician	$1.1M	$0
Daniel Zedek	NC	Dermatopathology (Pathology) Physician	$998.9K	$0
Jan Niklas Ulrich	NC	Ophthalmology Physician	$730.3K	$0
Yang Zhang	NC	Retina Specialist (Ophthalmology) Physician	$589.7K	$0
Daniel Cavanaugh	NC	Orthopaedic Surgery of the Spine Physician	$481K	$0
Maya Jerath	MO	Allergy & Immunology (Internal Medicine) Physician	$448.9K	$0

Ersan Altun — 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

Frequently Asked Questions

References