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

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

Callia Zimmerman Licsw Ladc LLC (NPI 1285285650)

Field	Value
Entity Type	Organization
Organization	Callia Zimmerman Licsw Ladc LLC
Address	56 W Twin Oaks Ter Ste 3
City	South Burlington
State	VT
ZIP	05403
Taxonomy	Clinical Social Worker
NPI Enumerated	September 26, 2019

Payer Source	Total Paid
Medicaid	$491K
Medicare	$0

Medicaid: Complete Services Breakdown

Every CPT/HCPCS code this provider has billed to Medicaid, with claims volume, average payment, and total revenue.

3 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
90837	In this service, the provider performs psychotherapy, a series of technique for treating the psychiatric disorders of the patient. The treatment session typically lasts for a minimum of 53 minutes or…	16,430	$30	$460.1K
90834	In this service, the provider performs psychotherapy, a series of techniques for treating the psychiatric disorders of the patient. The treatment session with the patient typically lasts for anywhere…	370	$50	$19.8K
90791	In this service, the provider performs a psychiatric evaluation of the patient with the aim of making a diagnosis.	140	$80	$11.1K

Medicaid: Competitive Analysis & Benchmarks

How this provider's Medicaid billing volume and revenue compare to other Vermont providers billing the same CPT/HCPCS codes.

Claims Volume vs. Vermont Distribution

Callia Zimmerman Licsw Ladc LLC — 1 of 3 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Vermont

Full comparison — all codes billed, vs. Vermont median

3 rows

CPT/HCPCS Code	Description	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
90837	In this service, the provider performs psychotherapy, a series of technique for treating the psychiatric disorders of the patient. The treatment session typically lasts for a minimum of 53 minutes or…	7	670	760	$70	$143.9K
90834	In this service, the provider performs psychotherapy, a series of techniques for treating the psychiatric disorders of the patient. The treatment session with the patient typically lasts for anywhere…	81	170	360	$20	$35.9K
90791	In this service, the provider performs a psychiatric evaluation of the patient with the aim of making a diagnosis.	29	90	60	$50	$9.4K

Nearby Providers

Other providers in the same ZIP code as Callia Zimmerman Licsw Ladc LLC, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Nfi Vermont, Inc	VT	Clinic/Center	$0	$33.6M
Bla Partners, LLC	VT	Clinical Medical Laboratory	$0	$15.2M
Timberlane Dental Group	VT	Orthodontics and Dentofacial Orthopedics Dentistry	$0	$7.5M
Tms Vt, LLC	VT	Durable Medical Equipment & Medical Supplies	$0	$2.9M
Michelle Young	VT	Ophthalmology Physician	$2.1M	$0
Howard Center Inc	VT	Psychiatry Physician	$0	$2M
Vermont Eye Surgery & Laser Center	VT	Ambulatory Surgical Clinic/Center	$1.8M	$2.7K
David Weissgold	VT	Ophthalmology Physician	$1.7M	$0
Surgi-care Inc	VT	Prosthetic/Orthotic Supplier	$0	$1.7M
City Of So Burlington	VT	Ambulance	$400.9K	$1M

Callia Zimmerman Licsw Ladc LLC — Billing Profile & Reimbursement Data

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Callia Zimmerman Licsw Ladc LLC — Billing Profile & Reimbursement Data

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Medicaid: Total Revenue Breakdown by CPT/HCPCS Code

Medicaid: Complete Services Breakdown

Medicaid: Competitive Analysis & Benchmarks

Nearby Providers

Frequently Asked Questions

References