Physician Profile
Britt H. Tonnessen, MD
Unclaimed ProfileAbout Dr. Tonnessen
Based in New Haven, CT, Britt H. Tonnessen, MD is listed in the NPI registry under vascular surgery. Britt graduated from Mayo Medical School in 1999. According to Medicare claims data, Britt cared for 288 Medicare patients across 339 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (203) 785-6258
- Email not available
Practice Locations
330 CEDAR STREET, BOARDMAN 204
New Haven, CT 06520
117 Marys Ave Ste 202
Kingston, NY 12401
316 Calhoun St
Charleston, SC 29401
21 Reade Pl Ste 2200
Poughkeepsie, NY 12601
Conditions Commonly Evaluated or Treated
Within Vascular Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Aneurysms
- Groin Artery Bulge
- Knee Artery Aneurysm
- Visceral Artery Aneurysm
Aortic disease
- Aortic aneurysm
- Torn Aorta
Artery conditions
- Buerger's Disease
- Pelvic Artery Blockage
Artery disease
- Cold Sensitive Fingers and Toes
- Fibromuscular Dysplasia
- Mesenteric ischemia
- Narrow kidney artery
- Subclavian Steal Syndrome
Artery inflammation
- Temporal Arteritis
Blood clots
- Blood Clot in Arm or Leg
- Blood Clot in Lung
- Long-Term Leg Swelling After Clot
Congenital vascular disorders
Dialysis
- Dialysis Access Problems
Digestive & abdominal
- Stomach Pain After Eating From Arteries
Emergencies
- Acute Leg Compartment Syndrome
Foot & toe conditions
- Blue Toe Syndrome
Leg & foot pain
- Leg Cramps When Walking
- Non-Healing Foot Sores From Poor Blood Flow
- Restless legs syndrome
Nerve & vessel compression
- Nutcracker Syndrome
- Popliteal Artery Entrapment
- Thoracic outlet syndrome
Skin & vein conditions
- Leg Skin Discoloration From Veins
Vascular malformations
- Klippel-Trenaunay Syndrome
Vascular tumors
- Carotid Body Tumor
Vein conditions
Vein disease
- Chronic pelvic pain
- Lymphedema
- May-Thurner Syndrome
- Poor Circulation and Swollen Legs
Wounds & sores
- Arterial Leg Ulcer
Wounds & ulcers
- Diabetic foot ulcer
- Gangrene
- Venous Leg Ulcers
Procedures & services
Most searched procedures
- Bypass surgery
- Carotid endarterectomy
- Sclerotherapy
- Spider vein removal
- Varicose vein treatment
- Vein ablation
Amputation surgery
- Below-Knee Leg Amputation
Aneurysm repair
- Complex Branched Aortic Aneurysm Repair
- Minimally Invasive Aneurysm Repair
- Open Aortic Aneurysm Surgery
- Popliteal Aneurysm Repair
- Pseudoaneurysm Injection Repair
- Thoracic Endovascular Aortic Repair
- Visceral Aneurysm Coiling
Artery procedures
- Atherectomy
- Balloon Angioplasty for Legs
- Carotid Artery Stent
- Leg Artery Stent
- Limb Salvage Surgery
- Mesenteric Artery Stenting
- Renal artery stenting
- Transcarotid Artery Revascularization
Artery surgery
- Groin Artery Plaque Removal
Blood clot treatments
- Pulmonary Embolism Clot Removal
Blood clots
- Blood Clot Removal Surgery
- Catheter Clot Dissolving Treatment
- IVC Filter Placement
- IVC Filter Removal
Diagnostic procedures
- Temporal Artery Biopsy
Diagnostic tests
- Abdominal Aortic Aneurysm Ultrasound Screening
- Vein Mapping Ultrasound
Dialysis access
- Dialysis Fistula Surgery
- Dialysis Graft Placement
- Fistula Repair and Declotting
Emergency surgery
- Fasciotomy for Leg Swelling
Imaging & diagnostics
- Carotid Ultrasound
- Leg Circulation Test (ABI and Arterial Doppler)
- Leg Vein Ultrasound
- Peripheral Angiogram
Nerve & vessel compression
- Thoracic Outlet Decompression
Nerve surgery
- Surgery for sweaty hands
Vascular access
- Chemo port placement
- Chemo port removal
- Dialysis Catheter Removal
- Tunneled Dialysis Catheter Placement
Vascular malformation treatments
- Vascular Malformation Embolization
Vein procedures
- Ambulatory Phlebectomy
- Iliac Vein Stenting
- Pelvic Vein Embolization
- Varicose vein removal
Vein treatments
- Medical Compression Stocking Fitting
- Microfoam Vein Injection
- Vein Glue Closure
Wound care
- Surgical Wound Care
- Toe or Partial Foot Amputation
Procedures Most Often Billed to Medicare
339 services · 288 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Review by radiologist of arm or leg artery image | Imaging | 75710 |
15 | Less often than most peers in Vascular Surgery |
| Complete ultrasound study of arm and leg arteries | Treatment | 93923 |
21 | Less often than most peers in Vascular Surgery |
| Ultrasound of hemodialysis access | Treatment | 93990 |
17 | Less often than most peers in Vascular Surgery |
| Ultrasound study of one arm or leg veins with compression and maneuvers | Treatment | 93971 |
17 | Less often than most peers in Vascular Surgery |
| Ultrasound study of arm or leg veins with compression and maneuvers | Treatment | 93970 |
12 | Less often than most peers in Vascular Surgery |
| Ultrasound of one leg arteries or artery grafts | Treatment | 93926 |
11 | Less often than most peers in Vascular Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
48 | As often as other peers in Vascular Surgery |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
47 | More often than most peers in Vascular Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
37 | As often as other peers in Vascular Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
22 | As often as other peers in Vascular Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other vascular surgeons at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 28 related providers in 4 groups
Other vascular surgeons in New Haven 6
Same specialty, same city.
Trained at Mayo Medical School 6
Other providers in the same specialty who trained at the same institution.
Class of 1999 at Mayo Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Review by radiologist of arm or leg artery image 8
Providers in CT who bill this service to Medicare most often.
Common questions
What is Dr. Tonnessen's specialty?
Dr. Tonnessen is a vascular surgeon in New Haven, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Vascular Surgery”.
NPI registry
Where can I find Dr. Tonnessen?
Dr. Tonnessen is listed at 330 Cedar Street, Boardman 204, New Haven, CT 06520. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Tonnessen?
The number on file is (203) 785-6258. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Tonnessen's NPI number?
Dr. Tonnessen's National Provider Identifier is 1073567772. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Tonnessen's medical education?
Dr. Tonnessen attended Mayo Medical School, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Tonnessen been practicing?
Dr. Tonnessen has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Tonnessen known for?
According to Medicare billing data, Dr. Tonnessen performs imaging including review by radiologist of arm or leg artery image; provides treatments such as complete ultrasound study of arm and leg arteries and ultrasound of hemodialysis access, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Tonnessen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tonnessen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.