Physician Profile
Ben U. Marsan, M.D.
Unclaimed ProfileAbout Dr. Marsan
Ben U. Marsan, M.D. is a healthcare provider in Darien, CT specializing in vascular surgery. Ben trained at Oregon Health Sciences University School of Medicine, graduating in 1989. Medicare claims data shows Ben provided 1,254 services to 608 patients. The services billed most often include low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and ultrasound study of arm or leg veins with compression and maneuvers.
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) 956-6819
- Email not available
Practice Locations
85 OLD KINGS HWY N
Darien, CT 06820
495 Hawley Ln Ste 2A
Stratford, CT 06614
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
- Carotid artery disease
- Deep vein thrombosis
- Peripheral artery disease
- Spider veins
- Varicose veins
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
- Brain Vascular Malformation
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
- Pelvic Congestion Syndrome
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
1,254 services · 608 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
20 | Less often than most peers in Vascular Surgery |
| Ultrasound study of arm or leg veins with compression and maneuvers | Treatment | 93970 |
111 | More often than most peers in Vascular Surgery |
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
76 | As often as other peers in Vascular Surgery |
| Ultrasound study of one arm or leg veins with compression and maneuvers | Treatment | 93971 |
58 | As often as other peers in Vascular Surgery |
| Complete ultrasound of aorta, vena cava, groin vessels or bypass grafts | Treatment | 93978 |
40 | As often as other peers in Vascular Surgery |
| Ultrasound of leg arteries or artery grafts | Treatment | 93925 |
39 | As often as other peers in Vascular Surgery |
| Ultrasound of aorta, vena cava, groin vessels or bypass grafts | Treatment | 93979 |
27 | As often as other peers in Vascular Surgery |
| Ultrasound of one leg arteries or artery grafts | Treatment | 93926 |
25 | As often as other peers in Vascular Surgery |
| Complete ultrasound study of arm and leg arteries | Treatment | 93923 |
17 | Less often than most peers in Vascular Surgery |
| Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | Treatment | 99152 |
14 | Less often than most 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 3
Same specialty, same street address — most likely the same department or group.
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.
Other vascular surgeons in Darien 4
Same specialty, same city.
More connections — 21 related providers in 3 groups
Trained at Oregon Health Sciences University School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 1989 at Oregon Health Sciences University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Ultrasonic guidance for blood vessel access 6
Providers in CT who bill this service to Medicare most often.
Common questions
What does Ben U. Marsan specialize in?
Ben U. Marsan is a vascular surgeon in Darien, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Vascular Surgery”.
NPI registry
Where is Ben U. Marsan located?
Ben U. Marsan is listed at 85 Old Kings Hwy N, Darien, CT 06820. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Ben U. Marsan's phone number?
The number on file is (203) 956-6819. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Ben U. Marsan?
Ben U. Marsan's National Provider Identifier is 1518977479. 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
Where did Ben U. Marsan train?
Ben U. Marsan attended Oregon Health Sciences University School of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Ben U. Marsan have?
Ben U. Marsan has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What does Ben U. Marsan do most often?
According to Medicare billing data, Ben U. Marsan performs imaging including ultrasonic guidance for blood vessel access; provides treatments such as ultrasound study of arm or leg veins with compression and maneuvers and ultrasound of both sides of head and neck blood flow, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Ben U. Marsan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Ben U. Marsan. 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.