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

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

David Chang (NPI 1861601791)

Field	Value
Entity Type	Individual
Organization	David Chang
Address	700 Ne 87th Ave
City	Vancouver
State	WA
ZIP	98664
Taxonomy	Neuroradiology Physician
NPI Enumerated	May 21, 2007

Payer Source	Total Paid
Medicare	$112.3K
Medicaid	$0

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
70553	In this procedure, the provider performs a magnetic resonance imaging, or MRI, study of the brain including the brain stem. He performs this procedure without using contrast material. He then follows…	50	$260	$11.8K
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.	50	$240	$10.9K
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	$280	$7K
71250	In this diagnostic procedure, the provider performs a computed tomography, or CT, examination of the thorax without using contrast material.	70	$100	$6.2K
71271	The provider performs a low–dose computed tomography (LDCT), with low–dose ionizing radiation, for examination of the thorax without using contrast material to screen for lung cancer.	40	$140	$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…	60	$80	$4.8K
71046	In this diagnostic procedure, the provider performs a minimum of two radiological views of the chest. He performs this study for the assessment of conditions affecting the chest, its contents, and…	210	$20	$4.7K
72148	In this diagnostic procedure, the provider performs magnetic resonance imaging (MRI) of the lumbar spinal canal and contents without using contrast.	30	$150	$4.2K
74170	The provider performs computed tomography to create cross–sectional images of the abdomen to aid in the diagnosis and treatment of abdominal conditions. He obtains images without contrast and then…	20	$190	$4.2K
77080	The provider performs an imaging procedure, called dual–energy X–ray absorptiometry (DXA), of one or more bony areas on the trunk to determine the bone mineral density (BMD) and whether the patient…	110	$40	$4K

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. Washington Distribution

David Chang — 0 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Washington

Full comparison — all codes billed, vs. state median

40 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
74177	414	550	110	$80	$12.3K
70553	118	220	60	$120	$11.5K
72148	196	300	50	$90	$6.7K
70551	184	240	50	$70	$6.3K
93880	191	320	40	$80	$5.1K
74176	404	440	50	$70	$5.1K
77080	148	320	90	$20	$4.4K
71250	191	440	60	$50	$4.2K
71260	349	460	50	$50	$4.1K
71271	67	170	30	$70	$3.9K

Showing 1–10 of 40

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Peacehealth	WA	General Acute Care Hospital	$0	$81.6M
The Vancouver Clinic Inc Ps	WA	Internal Medicine Physician	$0	$28.2M
The Vancouver Clinic Inc Ps	WA	Ambulatory Surgical Clinic/Center	$901.2K	$2.9M
Peacehealth	WA	Home Health Agency	$0	$2.5M
Rafal Sosnowski	IL	Diagnostic Radiology Physician	$1.7M	$75.2K
David Zelman	NY	Diagnostic Radiology Physician	$580.2K	$563.4K
Patrick Wright	WA	Body Imaging Physician	$942.1K	$0
Zheng Qian	WA	Dermatology Physician	$577.2K	$0
Kathrin Ahl	WA	Diagnostic Radiology Physician	$557.5K	$0
Kristin Manning	WA	Diagnostic Radiology Physician	$523K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
South Sound Inpatient Physicians PLLC	WA	Internal Medicine Physician	$0	$17.6M
Peacehealth	WA	Surgery Physician	$0	$13.5M
Emergency Medicine Associates PC	WA	Emergency Medicine Physician	$0	$11.1M
Rkso LLC	WA	Durable Medical Equipment & Medical Supplies	$0	$4.2M
Southwest Washington Regional Surgery Center, LLC	WA	Ambulatory Surgical Clinic/Center	$2.4M	$563K
Aliakbar Dadla	WA	Hematology & Oncology Physician	$613.3K	$0
Howard Nelson	WA	Diagnostic Radiology Physician	$429K	$0
David Valent	WA	Ophthalmology Physician	$333.3K	$0
Ramon Godoy	WA	Family Nurse Practitioner	$230.6K	$0
Jonah Zwemer	WA	Diagnostic Radiology Physician	$183.2K	$0

David Chang — Billing Profile & Reimbursement Data

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David Chang — Billing Profile & Reimbursement Data

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Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References