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

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

Marissa Lazor (NPI 1790760759)

Field	Value
Entity Type	Individual
Organization	Marissa Lazor
Address	690 Canton St
City	Westwood
State	MA
ZIP	02090
Taxonomy	Anesthesiology Physician
NPI Enumerated	December 13, 2005

Payer Source	Total Paid
Medicare	$39.9K
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
01402	The provider performs anesthesia services for a patient undergoing an open or arthroscopic total knee arthroplasty.	90	$170	$15.2K
01214	The provider performs anesthesia services for a patient undergoing an open total hip arthroplasty.	80	$180	$13.8K
00670	The provider performs anesthesia services for a patient undergoing an extensive spine and spinal cord procedures including spinal instrumentation, where the provider implants plates and screws into…	20	$290	$6K
01638	The provider performs anesthesia services for a patient undergoing replacement of the shoulder joint.	20	$220	$3.9K
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…	20	$50	$970

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. Massachusetts Distribution

Marissa Lazor — 2 of 5 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Massachusetts

Full comparison — all codes billed, vs. state median

5 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
00670	29	130	20	$330	$6.5K
01402	6	440	20	$170	$4K
01214	3	230	20	$180	$3.7K
01638	13	50	10	$190	$3.1K
64447	103	220	20	$50	$1.2K

Related Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Roberto Feliz	MA	Anesthesiology Physician	$460.2K	$260
Maher El Khatib	RI	Anesthesiology Physician	$113.2K	$163.7K
Vidya Ramanavarapu	IL	Pain Medicine Physician	$208.1K	$0
Laverne Gugino	MA	Clinical Neurophysiology Physician	$170K	$0
Rebecca Leong	MA	Anesthesiology Physician	$118.8K	$0
Christopher Wenger	MA	Anesthesiology Physician	$110.4K	$0
Dana Zalkind	MA	Interventional Pain Medicine Physician	$100.8K	$0
Vladimir Kazakin	MA	Anesthesiology Physician	$92K	$0
Clifford Bierman	MA	Anesthesiology Physician	$77.4K	$0
Lyudmil Todorov	MA	Anesthesiology Physician	$62K	$0

Nearby Providers

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

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Lifeworks, Inc.	MA	Developmentally Disabled Services Day Training Agency	$0	$13.3M
South Norfolk County Association For Retarded Citizens, Inc.	MA	Developmentally Disabled Services Day Training Agency	$0	$6.7M
Town Of Westwood	MA	Land Ambulance	$370.6K	$166.3K
David Fleischman	MA	Physical Therapist	$147K	$0
Mario Addabbo	MA	Anesthesiology Physician	$132.2K	$0
Pradeep Chopra	MA	Anesthesiology Physician	$129K	$0
Barbie Kelly	MA	Certified Registered Nurse Anesthetist	$54.4K	$0
Svetla Yordanov	MA	Anesthesiology Physician	$49.1K	$0
Mohammed Hassan	MA	Anesthesiology Physician	$48.8K	$290
Jan Matejka	MA	Anesthesiology Physician	$41.6K	$0

Marissa Lazor — Billing Profile & Reimbursement Data

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Marissa Lazor — 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