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

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

Lawrence Chang (NPI 1265548929)

Field	Value
Entity Type	Individual
Organization	Lawrence Chang
Address	2117 General Booth Blvd
City	Virginia Beach
State	VA
ZIP	23454
Taxonomy	Dermatology Physician
NPI Enumerated	August 22, 2006

Payer Source	Total Paid
Medicare	$2.4M
Medicaid	$0

Key Findings

This provider’s Medicare billing profile is concentrated in Mohs micrographic surgery: codes 17311 ($968.7K revenue, 42.1%), 17312 ($355.6K revenue, 15.5%), and 17313 ($229.4K revenue, 10.0%) together drive the core of the practice’s procedure revenue. The precomputed top-3 share confirms this concentration — "top 3 Medicare codes by revenue account for 67.6% of this provider's total Medicare revenue" — indicating a service line centered on complex skin cancer excision.

Rankings show the provider is a national volume leader for Mohs and related reconstructive work: 17311 ranks #2 of 2969 providers (100th percentile; extreme outlier), 17312 ranks #14 of 2770 (100th percentile; extreme outlier), and 17313 ranks #8 of 2300 (100th percentile; extreme outlier). These standings mean the provider performs Mohs at volumes far above typical national peers, positioning them as a dominant procedural player in this specialty on a national scale for these codes.

Beyond Mohs, the practice bills very high volumes of intermediate repair and reconstruction codes, supporting an integrated surgical-reconstruction workflow. Examples include 12032 ($221.2K revenue) which ranks #1 of 6420 providers (100th percentile; extreme outlier), 12042 ($42.3K revenue) rank #1 of 1531 (100th percentile; extreme outlier), and 12034 ($34.5K revenue) rank #1 of 633 (100th percentile; extreme outlier), indicating in-house closure/reconstruction capacity after excisions. This mix of Mohs plus high-volume repair codes is consistent with a surgical dermatology practice that retains post-excisional reconstructions rather than referring them out.

Evaluation & management activity is present but a small share of revenue relative to procedures: 99213 generated $33.9K (1.5% of Medicare revenue) and 99212 generated $22.4K (1.0%), with 99213 ranking #28690 of 457151 providers (94th percentile; typical, unremarkable volume) and 99212 ranking #992 of 99011 providers (99th percentile; extreme outlier). These E/M volumes support clinic throughput for the procedural practice but do not drive the revenue base compared with surgical codes.

Payer mix is effectively single-payer Medicare: lifetime Medicare revenue on file is $2.4M while Medicaid billing is recorded as "none below — this provider has no Medicaid billing on file." This means the practice’s revenue exposure and growth opportunities are tightly linked to Medicare market dynamics and patient composition rather than to Medicaid populations.

The provider’s code-level profile contains many statistical outliers for procedural dermatology: multiple entries are labeled "extreme outlier" and sit at the 100th percentile for national ranks (e.g., several Mohs and intermediate repair codes). At the same time, some reconstructive graft codes (for example, 15260) are described as "typical, unremarkable volume," indicating that while Mohs and repairs are unusually high, not every ancillary procedure is outlier-level in national context.

Operationally, the NPI tenure indicates long-standing presence in the market: NPI enumerated 2006-08-22 (~20 years ago). Coupled with the concentrated, high-volume Mohs and reconstruction billing, this tenure supports a profile of an established surgical dermatology practice that has built sustained procedural volumes over time.

From a competitive and business-development perspective, the provider should be viewed as a high-capacity Mohs and reconstructive dermatologic surgery center: dominant in national Mohs volume and extremely high in intermediate repair codes, but with most revenue concentrated in a small set of codes (the top 3 account for 67.6% of Medicare revenue). For payers and provider network planners, this suggests the entity is a specialist referral destination for complex skin cancer excision and immediate reconstruction, with limited Medicaid participation to consider for broader safety-net coverage planning.

Medicare: Complete Services Breakdown

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

49 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
17311	Mohs surgery is a multi–staged procedure that is performed to excise a malignant lesion layer by layer, along with histo–pathological assessment. The assessment is performed to ensure that the…	2,040	$480	$968.7K
17312	Mohs surgery is a multi–staged method of excising a malignant lesion layer by layer, along with histo–pathological assessment, to ensure negative malignancy of the margins.	1,090	$330	$355.6K
17313	Mohs surgery is a multi–staged method of excising a malignant lesion layer by layer, along with histo–pathological assessment, to ensure negative malignancy of the margins.	530	$440	$229.4K
12032	This CPT® code is used for the intermediate repair of wounds to the scalp, axillae, trunk and/or extremities (excluding hands and feet) that are 2.6 to 7.5 cm in size.	1,160	$190	$221.2K
12052	This CPT® code is used for the intermediate repair of wounds to the face, ears, eyelids, nose, lips and/or mucous membranes that are 2.6 to 5.0 cm in size.	520	$130	$68.6K
11602	The provider excises a cancerous (malignant) lesion, including margins, of 1.1 to 2.0 cm in diameter, from the skin of the trunk, arms, or legs.	610	$100	$59.6K
15260	This code is for a free full–thickness skin graft of the nose, ears, eyelids, and/or lips that is 20 cm2 or less in size.	70	$780	$53.2K
17314	Mohs surgery is a multi–staged method of excising a malignant lesion layer by layer, along with histo–pathological assessment, to ensure negative malignancy of the margins.	160	$320	$50.7K
12042	This CPT® code is used for the intermediate repair of superficial wounds to the neck, hands, feet, and/or external genitalia that are 2.6 to 7.5 cm in size.	280	$150	$42.3K
12034	This CPT® code is used for the intermediate repair of wounds to the scalp, axillae, trunk and/or extremities (excluding hands and feet) that are 7.6 to 12.5 cm in size.	160	$220	$34.5K

Showing 1–10 of 49

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 49 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Virginia Distribution

Lawrence Chang — 15 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Virginia

Full comparison — all codes billed, vs. state median

49 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
17311	1	60	450	$470	$226K
17312	1	50	250	$330	$87.4K
17313	1	50	80	$480	$47.6K
15260	4	40	20	$730	$21.1K
99214	6,444	12,890	140	$80	$21K
14060	9	60	30	$570	$17K
14040	23	30	20	$550	$14.3K
17314	1	30	40	$320	$13.8K
11102	280	480	140	$60	$13.1K
15240	3	10	20	$690	$13.1K

Showing 1–10 of 49

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
James Bota	VA	MOHS-Micrographic Surgery Physician	$1.5M	$0
Molly Smith	VA	Dermatology Physician	$813.9K	$1.2K
Ashley Reed	VA	Dermatology Physician	$641K	$0
Natalia Mendoza	VA	Dermatology Physician	$503.4K	$0
Anh Pham	VA	Dermatology Physician	$478.1K	$0
Robert Baer	VA	Dermatology Physician	$338.5K	$0
Lauren Barnes	VA	Dermatology Physician	$320.8K	$0
Tara Buehler-bota	VA	Dermatology Physician	$309.7K	$0
Bruce Bauer	VA	Dermatology Physician	$264K	$4.3K
Cyndi Torosky Tommaso	VA	Dermatology Physician	$258.5K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Sentara Hospitals	VA	General Acute Care Hospital	$0	$52.3M
First Hospital Corporation Of Virginia Beach	VA	Psychiatric Hospital	$0	$22.4M
Sellati & Co., Inc.	VA	Methadone Clinic	$0	$5.6M
Eye Surgery Limited LLC	VA	Ambulatory Surgical Clinic/Center	$2.1M	$155.7K
Michael Cannon	VA	Specialist	$1.7M	$0
Janice Sherwood	VA	Rheumatology Physician	$1.4M	$0
Virginia Beach Ambulatory Surgery Center	VA	Ambulatory Surgical Clinic/Center	$240.6K	$797K
Aris Delianides	VA	Ophthalmology Physician	$644.6K	$11.2K
Steven Cronquist	VA	MOHS-Micrographic Surgery Physician	$573.7K	$0
Andrew Villanueva	VA	Dermatology Physician	$542.3K	$0

Lawrence Chang — Billing Profile & Reimbursement Data

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Lawrence Chang — 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