Britt H. Tonnessen, MD
Vascular Surgery Physician · New Haven, CT
Britt H. Tonnessen, MD is a vascular surgery physician with a practice address in New Haven, Connecticut, and NPI 1073567772, issued on May 19, 2006. Check the license (Connecticut 62276, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Britt H. Tonnessen
- Credential
- MD
- Primary taxonomy
- Vascular Surgery Physician 2086S0129X
- License numbers
- 62276 CT
MD.025529 LA
282289 NY
32882 SC
TL32882 SC
Self-reported in NPPES; status is on the state search - Practice location
- 330 Cedar Street, Boardman 204, New Haven, CT 06520
- Phone
- (203) 785-6258
- Enumerated
- May 19, 2006
- Record last updated
- Jan 23, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (203) 785-7556
- Medicaid ID
- 328826 SC
- Medicare enrollment
- Enrolled (PECOS I20190205001873); accepts Medicare assignment
- Medical or professional school
- Mayo Medical School, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Britt H. Tonnessen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 62276Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average vascular surgery physician in 2024
38 Medicare Part D claims for 18 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Clopidogrel13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $351.46
3 payments; by number, the most common kind was food and beverage; the largest payer was W. L. Gore & Associates, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Vascular Surgery Physician providers in Connecticut
There are 89 vascular surgery physician records in Connecticut.
Other vascular surgery physician records in Connecticut
- Edouard Aboian, M.D.New Haven, CT1588830566
- Elizabeth Aitcheson, M.D.Hartford, CT1578900320
- Philip AllmendingerHartford, CT1861492241
- Kwame Amankwah, MDFarmington, CT1508815762
- Tamil Anban, MDVernon, CT1639141286
- Isibor Arhuidese, MDNew Haven, CT1568825966
- Stephen Bauer, MDStamford, CT1477610913
- Andrew BaxterFairfield, CT1124346481
- Seth Blattman, M.D.Fairfield, CT1477508778
- Robert Botta, M.D.Watertown, CT1780094326
Common questions
What is Britt H. Tonnessen, MD's NPI number?
Britt H. Tonnessen, MD's National Provider Identifier (NPI) is 1073567772, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Britt H. Tonnessen, MD located?
The NPPES record lists a practice address at 330 Cedar Street, Boardman 204, New Haven, CT, 06520. Phone: (203) 785-6258. Providers update this record themselves, so call before visiting.
How can I verify Britt H. Tonnessen, MD's license?
NPPES lists Connecticut license number 62276, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Britt H. Tonnessen, MD prescribe under Medicare Part D?
In 2024, Britt H. Tonnessen, MD had 38 Medicare Part D claims for 18 beneficiaries; the average among vascular surgery physician prescribers was 201. Part D covers Medicare prescriptions only.
What is Britt H. Tonnessen, MD's MIPS final score?
The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.