DR. KAREN KIM QUIRK MD
NPI 1639363138
Surgery - Vascular Surgery in Oxnard, CA

Q: What is Karen Quirk's NPI number?

The NPI number for Karen Quirk is 1639363138. It was assigned to this individual provider in the NPPES registry on August 28, 2007.

Q: What is Karen Quirk's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Q: When was this NPI record last updated?

The NPPES record for Karen Quirk was last updated on February 10, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 28, 2007PECOS EnrolledAccepts Medicare Assignment

70.73/100

CMS Quality Rating

2841 N VENTURA RD, SUITE 200, OXNARD, CA 93036(805) 983-6233(805) 983-2459 Get Directions Write a Review

NPPES record last updated: February 10, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Karen Kim Quirk Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KAREN KIM QUIRK MD (NPI 1639363138) is an individual vascular surgery provider in Oxnard, California, licensed in California (A102046) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2006).

NPPES Registry Identity

NPI1639363138

Entity TypeIndividualFemale

Primary Taxonomy2086S0129X

Provider Legal NameDR. KAREN KIM QUIRKCredential: MD

Location Address2841 N VENTURA RD, SUITE 200Oxnard, CA 93036-2213

Mailing Address2841 N Ventura Rd, Suite 200Oxnard, CA 93036-2213 · (805) 983-6233 · Fax (805) 983-2459

Phone(805) 983-6233

Fax(805) 983-2459

Sole ProprietorNo

Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2006

Enumeration DateAugust 28, 2007

Last NPPES UpdateFebruary 10, 2016

✔ NPI 1639363138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code2086S0129X

License✔ Licensed in CA · A102046

Definition

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Also ListedSurgeryTaxonomy 208600000X · License A102046 (CA)

2841 N VENTURA RD, Oxnard, CA 93036

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Karen Kim Quirk Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2365581022

PECOS Enrollment IDI20091209000529

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Karen Quirk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Coastal Vascular Center PC

Same address

Specialist

2841 N VENTURA RD STE 200
Oxnard, CA 93036

Reassigned Medicare billing, California enrollment
5 clinicians in this Medicare group

NPI 1821031675 (805) 983-6233

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 22

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

350 services148 patients

Strapping, unna boot 29580

An Unna Boot is a special bandage, soaked in a gel, wrapped around your lower leg and foot. It helps heal leg sores, improve circulation, and reduce swelling. The boot hardens and provides compression, promoting healing and comfort.

174 services27 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

141 services55 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

130 services35 patients

Injection of chemical agent into multiple incompetent veins of leg 36471

This procedure involves injecting a special chemical into problematic veins in the leg. The chemical helps to close off these veins, rerouting blood through healthier veins. This can alleviate discomfort and improve the appearance of the treated area.

122 services30 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

100 services84 patients

Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes 99153

This service involves a physician administering medication to lower your consciousness during a procedure. It's done for your comfort and safety. The drug's effects last about 15 minutes, so additional doses may be given as needed.

87 services15 patients

Chemical destruction of first incompetent vein of arm or leg using imaging guidance 36482

This procedure involves using a chemical to close off a malfunctioning vein in your arm or leg. Imaging guidance is used to accurately locate the vein. This helps improve blood flow by rerouting it through healthier veins.

82 services37 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

70 services70 patients

Ultrasound of leg arteries or artery grafts 93925

An ultrasound of leg arteries or artery grafts is a non-invasive imaging test. It uses high-frequency sound waves to capture live images from inside your body, specifically your leg arteries or grafts. This helps in detecting any blockages or abnormalities.

41 services26 patients

Balloon dilation of dialysis segment with review by radiologist 36907

Balloon dilation of a dialysis segment is a procedure where a tiny balloon is inserted and inflated in a narrowed area of your dialysis access site, improving blood flow. A radiologist reviews images to ensure success.

28 services19 patients

Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist 36902

This procedure involves inserting a needle or tube into your hemodialysis circuit, a system that cleans your blood when your kidneys can't. A balloon is then used to widen a narrow section of this circuit. A radiologist reviews the procedure to ensure accuracy.

22 services15 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

22 services15 patients

Review by radiologist of abdominal aorta image 75625

This is a procedure where a radiologist, a doctor specialized in medical imaging, examines an image of your abdominal aorta. The abdominal aorta is the large blood vessel that carries blood to your lower body. The radiologist checks for any abnormalities to ensure your overall vascular health.

21 services14 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

19 services13 patients

Removal of plaque in artery of leg, initial vessel 37229

This procedure involves removing plaque from the initial vessel in your leg. Plaque, a build-up of fat, cholesterol, and other substances, can block blood flow. The removal process, known as an angioplasty, restores healthy blood circulation in your leg.

18 services14 patients

Ultrasonic guidance for blood vessel access 76937

17 services13 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

16 services14 patients

Chemical destruction of subsequent incompetent veins of arm or leg using imaging guidance 36483

This procedure involves using a chemical to close off unhealthy veins in your arm or leg. Imaging guidance helps ensure the chemical is accurately delivered to the problematic veins. This can improve blood flow and alleviate discomfort.

14 services11 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

14 services14 patients

Removal of plaque in arteries of leg 37225

This procedure, known as atherectomy, involves clearing out plaque buildup in the leg arteries. Plaque can restrict blood flow, causing discomfort and potential health issues. A special device is inserted into the artery to carefully remove the plaque, improving blood circulation.

13 services11 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

13 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93036 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$95.28 typical visit price

range $62.32 – $185.36

Typical copayment $23.82 (range $15.58 – $46.34)

Most-billed visit code 99203

Established Patient

$77.11 typical visit price

range $20.68 – $151.85

Typical copayment $19.27 (range $5.17 – $37.96)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

70.73/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

64.33

Improvement Activities

Cost

16.68

Reported Quality Measures

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

100%55 patients1/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

83%1,894 patients4/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

0%382 patients1/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

29%717 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

12%1,672 patients1/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 0% · 461 patients

0%461 patients

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

81%155 patients4/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 402 patients

Patients totalRate: 0% · 402 patients

0%402 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SIDDHARTH AGARWAL M.D.

Surgery (Vascular Surgery)

2841 N VENTURA RD, SUITE 200
OXNARD, CA 93036

Ventura County (805) 983-6233

KEVIN M MAJOR M.D.

Surgery (Vascular Surgery)

2841 N VENTURA RD, SUITE 200
OXNARD, CA 93036

Ventura County (805) 983-6233

GREGORY K ALBAUGH D.O.

Surgery (Vascular Surgery)

2841 N VENTURA RD, SUITE 200
OXNARD, CA 93036

Ventura County (805) 983-6233

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Quirk's NPI number?

The NPI number for Karen Quirk is 1639363138. It was assigned to this individual provider in the NPPES registry on August 28, 2007.

Where is Karen Quirk located?

Karen Quirk practices at 2841 N Ventura Rd Suite 200, Oxnard, CA 93036. The listed phone number is (805) 983-6233.

What is Karen Quirk's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Karen Quirk enrolled in Medicare?

Yes. Karen Quirk is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Karen Quirk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Quirk reassigns Medicare benefits to Coastal Vascular Center PC (Oxnard, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Quirk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Karen Quirk was last updated on February 10, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.