Britt H. Tonnessen, MD

Vascular Surgery (CMS) · New Haven, CT

At a glance

330 Cedar Street, Boardman 204, New Haven, CT 06520-8062

Published activity: Leg revascularization (restoring blood flow) · Removal of tissue · Spinal fusion. View counts and coverage

NPPES record updated Jan 23, 2019. Public records can lag behind changes at a practice.

Before you call: a quick checklist

Are you accepting new patients?
Do you accept my specific insurance plan?
Do you provide the service I need at this address?
Do I need a referral, and what is the earliest appointment?

Insurance participation and appointment availability are not established by these public records.

Medicare & insurance

Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.

How to check your coverage

Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.

Check the official Medicare directory ↗

Practice location

330 Cedar Street, Boardman 204
New Haven, CT 06520-8062

Additional reported practice locations

117 Marys Ave Ste 202
Kingston, NY 124015849
Phone: 8453381992

316 Calhoun St
Charleston, SC 294011113
Phone: 8437205665
Fax: 8437273370

21 Reade Pl Ste 2200
Poughkeepsie, NY 126013970
Phone: 8454830698

REPORTED BACKGROUND

Education & affiliations

Medical / professional school: Mayo Medical School
Graduation year: 1999
CMS specialties: Vascular Surgery

CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.

Practice groups

Yale University

Reported hospital affiliations

Bridgeport Hospital Bridgeport, CT
Yale-New Haven Hospital New Haven, CT

Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.

Source: CMS National Downloadable File · Published Oct 15, 2026.

Source: CMS Facility Affiliation Data · Published Oct 15, 2026.

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PUBLISHED MEDICARE ACTIVITY

Procedures in the public data

Reported activity can help you ask more informed questions about a practice’s services.

Procedure category	Published Medicare activity
Leg revascularization (restoring blood flow)	1-10
Removal of tissue	1-10
Spinal fusion	1-10
Varicose vein removal	1-10

CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology

Source: CMS Utilization Data · Published Oct 15, 2026.

Find providers with a similar service mix

Compare 2024 published Medicare activity in the same reported specialty, here or in another city.

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PAYMENT TRANSPARENCY

Industry-reported general payments

$425.81General payments · 2025

6Reported transactions

1Reporting companies

Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.

See payment purposes and reporting companies

Reported purposes

Purpose	Amount
Food and beverage	$425.81

Reporting companies

Company	Amount
MEDTRONIC, INC.	$425.81

View official Open Payments profile ↗

Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.

Professional details: NPI, taxonomy & registry record

NPI1073567772

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Registry details

Primary taxonomy: Vascular Surgery (CMS)
Taxonomy code: 2086S0129X
Enumeration date: May 19, 2006
Record updated: Jan 23, 2019

More registry details

Provider type: Individual · Type 1
Reported credentials: MD