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

Why is the Medicaid comparison limited to California 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. California (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 1629093208)

Field	Value
Entity Type	Individual
Organization	David Chang
Address	45 Castro St Ste 410
City	San Francisco
State	CA
ZIP	94114
Taxonomy	Plastic Surgery Physician
NPI Enumerated	July 13, 2006

Payer Source	Total Paid
Medicare	$26.7K
Medicaid	$0

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
19318	Breast reduction is the removal of excess breast tissue which results from top scarring, calcification, or architectural distortion.	10	$1,160	$14K
14301	The provider replaces the lesions in any area with the healthy tissues from an adjacent site. This code represents a defect of 30.1 cm2 to 60.0 cm2.	20	$580	$9.3K
99203	The provider sees a new 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 provider…	20	$90	$1.8K
99212	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a straightforward level of medical decision making,…	20	$50	$950
99202	The provider sees a new patient for an office visit or other outpatient visit involving evaluation and management. The visit involves straightforward medical decision making, and/or the provider…	10	$60	$690

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.

View: State1 / 2

Claims Volume vs. California Distribution

David Chang — 0 of 5 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — California

Full comparison — all codes billed, vs. state median

5 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
14301	64	110	20	$790	$19.8K
19318	10	10	10	$1,050	$15.8K
99203	9,011	12,740	30	$80	$4.6K
99212	5,869	7,970	30	$40	$3.4K
99202	1,433	1,570	20	$50	$1.7K

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
Natalie Marshall	CA	Medical Oncology Physician	$305.4K	$0
Christopher Krol	CA	Diagnostic Radiology Physician	$222.3K	$0
David Young	CA	Plastic Surgery Physician	$150.9K	$0
Steven Sultan	NY	Plastic Surgery Physician	$142.1K	$0
Harish Mahanty	CA	Surgery Physician	$112.6K	$0
Clara Gomez-sanchez	CA	Vascular Surgery Physician	$92.4K	$0
Chris Freise	CA	Surgery Physician	$83.5K	$0
Jason Smith	CA	Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician	$72.8K	$0
Michael Alvarado	CA	Surgery Physician	$71.9K	$0
Stephanie Lin	CA	Vascular Surgery Physician	$69.6K	$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
Stephen Ng	CA	Physical Medicine & Rehabilitation Physician	$793.8K	$0
Kirk Grogan	CA	Foot & Ankle Surgery Podiatrist	$319.6K	$0
Brian Parrett	CA	Plastic Surgery Physician	$246.3K	$0
Brian Andrews	CA	Neurological Surgery Physician	$220.7K	$0
Armen Moughamian	CA	Neurology Physician	$95.7K	$0
Devron Char	CA	Ophthalmology Physician	$80.3K	$0
Joseph Harrison	CA	Family Nurse Practitioner	$8.4K	$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