Britt H. Tonnessen, MD
Britt H. Tonnessen is a Vascular Surgery specialist based in New Haven, CT with over 27 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Britt H. Tonnessen, MD practices as part of a group vascular surgery specialist practice in New Haven, CT. A Mayo Medical School graduate since 1999, she brings 27+ years of experience. She regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).
Older · 2677dNPPES updated 2019-01-23 · verify NPI on CMS · Verify license at Connecticut Medical Examining Board
Contact & Location
Practice Location
330 Cedar Street, Boardman 204, New Haven, CT 06520-8062
How Does This Doctor Compare?
MIPS Score
202373.56/100
Connecticut avg: 84.5 · US avg: 83.6
⚠ Lower than most doctors nationally(-10 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Generic Rx
↑ Higher = better68.8%
Connecticut avg: 81.1 · US avg: 82.8
⚠ Lower than most doctors nationally(-14 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
203
Unique beneficiaries
Standard volumePrescription Recipients
17
Patients prescribed
Prescriptions Written
48
Total claims
Total Medicare drug cost: $9k
Percentile rankings compared against 1,825 reporting peers in Connecticut.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+13%) — a focus area for this doctor
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↑ More patients than average (+28%) — a focus area for this doctor
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↑ More patients than average (+19%) — a focus area for this doctor
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↑ More patients than average (+17%) — a focus area for this doctor
The heart cannot pump blood efficiently enough to meet the body's needs
US avg: 22.5%↑ More patients than average (+26%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$351 received from industry
3 transactions reported in 2024 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Britt H. Tonnessen's NPI.
Patient Reviews
No patient reviews yet. If you've seen Britt H. Tonnessen, your feedback helps other patients.
Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →
Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1999
Mayo Clinic Alix School of Medicine
27 years in practice
Experienced
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Taxonomy: 2086S0129X
Education & Training
Mayo Medical School (Class of 1999)
Mailing address
330 Cedar Street, Boardman 204 P.O. Box 208062, New Haven, CT 06520-8062
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 450672
View hospital on Medicare Care CompareVirtual Vascular Surgery Care With Britt H. Tonnessen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Britt H. Tonnessen for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to New Haven required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Britt H. Tonnessen
NPI records show Dr. Tonnessen as active with telehealth listed in New Haven, CT. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (203) 785-6258.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
Is this your profile?
Verify credentials, update practice details, and manage telehealth.
Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Britt H. Tonnessen
Practice Location
330 Cedar Street, Boardman 204, New Haven, CT 06520-8062
Mailing Address
330 Cedar Street, Boardman 204 P.O. Box 208062, New Haven, CT 06520-8062
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers