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- 2841 N Ventura Rd, Suite 200, Oxnard, CA 93036
About Dr. Quirk
Karen K. Quirk, MD is a healthcare provider in Oxnard, CA specializing in vascular surgery. Karen trained at University of California, Irvine, California College of Medicine, graduating in 2006. Karen is also listed as specializing in surgery. According to Medicare claims data, Karen cared for 692 Medicare patients across 1,514 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, strapping, unna boot, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. This provider record is associated with NPI 1639363138.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (805) 983-6233
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
2841 N VENTURA RD SUITE 200
Oxnard, CA 93036
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
Aortic disease
Artery conditions
Artery disease
- Cold Sensitive Fingers and Toes
- Fibromuscular Dysplasia
- Mesenteric ischemia
- Narrow kidney artery
- Subclavian Steal Syndrome
Artery inflammation
Blood clots
Congenital vascular disorders
Dialysis
Digestive & abdominal
Emergencies
Foot & toe conditions
Leg & foot pain
Nerve & vessel compression
Skin & vein conditions
Vascular malformations
Vascular tumors
Vein conditions
Vein disease
Wounds & sores
Wounds & ulcers
Procedures & services
Aneurysm repair
- Minimally Invasive Aneurysm Repair
- Complex Branched Aortic Aneurysm Repair
- Open Aortic Aneurysm Surgery
- Popliteal Aneurysm Repair
- Pseudoaneurysm Injection Repair
- Thoracic Endovascular Aortic Repair
- Visceral Aneurysm Coiling
Artery procedures
- Balloon Angioplasty for Legs
- Carotid Artery Stent
- Atherectomy
- Leg Artery Stent
- Limb Salvage Surgery
- Mesenteric Artery Stenting
- Renal artery stenting
- Transcarotid Artery Revascularization
Blood clots
- Blood Clot Removal Surgery
- IVC Filter Placement
- IVC Filter Removal
- Catheter Clot Dissolving Treatment
Circulation & limbs
Cosmetic dermatology
Kidney
Vascular
Vein procedures
Veins & circulation
Wounds & skin
Most searched procedures
- Bypass surgery
- Carotid endarterectomy
- Sclerotherapy
- Spider vein removal
- Varicose vein treatment
- Vein ablation
Amputation surgery
Artery surgery
Blood clot treatments
Diagnostic procedures
Diagnostic tests
Dialysis access
Emergency surgery
Imaging & diagnostics
- Carotid Ultrasound
- Leg Circulation Test (ABI and Arterial Doppler)
- Leg Vein Ultrasound
- Peripheral Angiogram
Nerve & vessel compression
Nerve surgery
Vascular access
- Chemo port placement
- Chemo port removal
- Dialysis Catheter Removal
- Tunneled Dialysis Catheter Placement
Vascular malformation treatments
Vein treatments
Wound care
Procedures Most Often Billed to Medicare
1,514 services · 692 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Strapping, unna boot | Procedure | 29580 |
174 | More often than most peers in Vascular Surgery |
| Injection of chemical agent into multiple incompetent veins of leg | Procedure | 36471 |
122 | More often than most peers in Vascular Surgery |
| Chemical destruction of first incompetent vein of arm or leg using imaging guidance | Procedure | 36482 |
82 | More often than most peers in Vascular Surgery |
| Balloon dilation of dialysis segment with review by radiologist | Procedure | 36907 |
28 | As often as other peers in Vascular Surgery |
| Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist | Procedure | 36902 |
22 | As often as other peers in Vascular Surgery |
| Removal of plaque in artery of leg, initial vessel | Procedure | 37229 |
18 | Less often than most peers in Vascular Surgery |
| Chemical destruction of subsequent incompetent veins of arm or leg using imaging guidance | Procedure | 36483 |
14 | Too few peers to compare |
| Removal of plaque in arteries of leg | Procedure | 37225 |
13 | Less often than most peers in Vascular Surgery |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
130 | More than most peers in Vascular Surgery |
| Review by radiologist of abdominal aorta image | Imaging | 75625 |
21 | 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 5
Same specialty, same street address — most likely the same department or group.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 21 related providers in 3 groups
Trained at University of California, Irvine, California College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2006 at University of California, Irvine, California College of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Strapping, unna boot 6
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Quirk specialize in?
Dr. Quirk is a vascular surgeon in Oxnard, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Vascular Surgery”.
NPI registry
Where is Dr. Quirk located?
Dr. Quirk is listed at 2841 N Ventura Rd Suite 200, Oxnard, CA 93036. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Quirk's phone number?
The number on file is (805) 983-6233. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Quirk's NPI number?
Dr. Quirk's National Provider Identifier is 1639363138. 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 Dr. Quirk go to medical school?
Dr. Quirk attended University of California, Irvine, California College of Medicine, graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Quirk been practicing?
Dr. Quirk has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Quirk do most often?
According to Medicare billing data, Dr. Quirk performs procedures including strapping, unna boot, injection of chemical agent into multiple incompetent veins of leg and chemical destruction of first incompetent vein of arm or leg using imaging guidance; reads or performs imaging such as ultrasonic guidance for blood vessel access and review by radiologist of abdominal aorta image; provides treatments such as ultrasound study of arm or leg veins with compression and maneuvers and use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Quirk confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Quirk. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.