DR. CLARK R MCKENZIE MD
NPI 1073506051
Internal Medicine - Interventional Cardiology in Saint Louis, MO

Q: What is Clark Mckenzie's NPI number?

The NPI number for Clark Mckenzie is 1073506051. It was assigned to this individual provider in the NPPES registry on August 25, 2005.

Q: What is Clark Mckenzie's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Clark Mckenzie was last updated on January 19, 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 25, 2005PECOS EnrolledAccepts Medicare Assignment

89.23/100

CMS Quality Rating

450 N NEW BALLAS RD, STE 270 W, SAINT LOUIS, MO 63195(314) 991-6969(314) 997-6969 Get Directions Write a Review

NPPES record last updated: January 19, 2016. Verified against the NPPES registry weekly; last sync: August 30, 2026.

On this page

About Dr. Clark R Mckenzie Md NPPES

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

DR. CLARK R MCKENZIE MD (NPI 1073506051) is an individual interventional cardiology provider in Saint Louis, Missouri, licensed in Missouri (R4P62) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Jersey Community Hospital, and is a graduate of University Of Missouri, Kansas City, School Of Medicine (1989).

NPPES Registry Identity

NPI1073506051

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameDR. CLARK R MCKENZIECredential: MD

Location Address450 N NEW BALLAS RD, STE 270 WSaint Louis, MO 63195-2632

Mailing Address450 N New Ballas Rd, Ste 270 WSaint Louis, MO 63195-2632 · (314) 991-6969 · Fax (314) 997-6969

Phone(314) 991-6969

Fax(314) 997-6969

Sole ProprietorNo

Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 1989

Enumeration DateAugust 25, 2005

Last NPPES UpdateJanuary 19, 2016

✔ NPI 1073506051 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in MO · R4P62

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License R4P62 (MO)

450 N NEW BALLAS RD, Saint Louis, MO 63195

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Other Identifiers 13

Other006012762Medicare Provider Id

OtherMA1080001MO · Ccl Indivdual Prov Number

Other1801889795MO · Stl Group Npi

Other1881863009MO · Farm Group Npi

OtherCD6536MO · Rr Group 01

OtherP00275849MO · Rr Ccl Group

OtherCI7050MO · Rr Group 99

Other000047049MO · Mcare Ccl Group Number

Other1124011010MO · Hhc Cath Group Npi

OtherMA1080MO · Ccl Group Number

Other004013185MO · Medicare Prov Id Area 99

Medicare UPINF77827MO

Other110171721MO · Rr Medicare Number

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Clark R Mckenzie 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 ID1658308085

PECOS Enrollment IDI20080708000020

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.

Areas of Expertise CMS Part B claims 18

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

1,440 services17 patients

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.

375 services228 patients

Injection, midazolam hydrochloride, per 1 mg J2250

Midazolam hydrochloride is a medication injected to help you relax or sleep before surgery or certain medical procedures. It works by calming the brain and nerves. It's given in small doses, measured in milligrams (mg).

160 services44 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

122 services119 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

103 services71 patients

Injection, fentanyl citrate, 0.1 mg J3010

Fentanyl citrate is a potent pain medication administered via injection. The 0.1 mg dosage is used to manage severe pain conditions. It works by blocking pain signals to the brain. It's crucial to follow the dosage instructions to prevent potential side effects.

80 services44 patients

Infusion, normal saline solution, sterile (500 ml = 1 unit) J7040

An infusion of a normal saline solution is a common medical procedure. Sterile saline (salt water) is administered into your bloodstream via a drip. This helps to maintain fluid balance in your body, especially when you're unable to drink enough liquids.

46 services44 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

43 services34 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.

37 services35 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.

35 services33 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

29 services27 patients

Insertion of tube in left lower heart chamber, coronary artery and bypass graft for diagnosis with review by radiologist 93459

This procedure involves placing a tube into your left lower heart chamber, coronary artery, and bypass graft. It's done for diagnostic purposes and is carefully reviewed by a radiologist. This helps determine the health of your heart and arteries, aiding in future treatment plans.

23 services23 patients

Ultrasound evaluation of heart blood vessel during diagnosis or treatment, initial vessel 93571

This procedure involves using ultrasound technology to examine the first blood vessel of your heart. It helps identify any abnormalities or issues, providing crucial information for diagnosis or treatment. It's a safe, non-invasive process.

23 services22 patients

Ultrasound evaluation of heart blood vessel or graft with review by radiologist, initial vessel 92978

This procedure involves using ultrasound technology to examine the first vessel of your heart or graft. A radiologist will review the images. It's a non-invasive way to check the health of your heart's blood vessels.

21 services20 patients

Insertion of tube in coronary artery for diagnosis with review by radiologist 93454

This procedure involves placing a small tube into your coronary artery. It helps to identify any blockages or issues within the artery. A radiologist, a doctor specialized in medical imaging, will review the results to ensure accurate diagnosis.

20 services20 patients

Replacement of aortic valve through the skin and femoral artery 33361

This procedure, known as Transcatheter Aortic Valve Replacement (TAVR), involves replacing a damaged aortic valve through a small incision in the leg. A catheter is inserted into the femoral artery and guided up to the heart. The new valve is then positioned and deployed, restoring normal blood flow.

19 services19 patients

Insertion of tube in bypass graft for diagnosis with review by radiologist 93455

This procedure involves placing a small tube into a bypass graft, which is a vessel used to reroute blood flow. A radiologist, a doctor who specializes in medical imaging, then reviews the images taken to help diagnose any potential issues.

13 services12 patients

Insertion of tube in coronary artery for diagnosis with review by radiologist 93454

11 services11 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Jersey Community Hospital

Acute Care Hospitals · Jerseyville, IL

3/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number140059

Location400 Maple Summit RoadJerseyville, IL 62052 · Jersey County

Emergency services

Sparta Community Hospital

Critical Access Hospitals · Sparta, IL

OwnershipGovernment - Hospital District or Authority

CMS Certification Number141349

Location818 E BroadwaySparta, IL 62286 · Randolph County

Emergency services

St Lukes Hospital

Acute Care Hospitals · Chesterfield, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260179

Location232 S Woods Mill RdChesterfield, MO 63017 · St. Louis County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63195 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

$128.28 typical visit price

range $55.65 – $169.38

Typical copayment $32.07 (range $13.91 – $42.34)

Most-billed visit code 99204

Established Patient

$98.37 typical visit price

range $17.76 – $137.92

Typical copayment $24.59 (range $4.44 – $34.48)

Most-billed visit code 99214

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.

89.23/100

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

Scored through an Alternative Payment Model

Quality

84.14

Improvement Activities

Other Providers at the Same Location NPPES 2

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

PAUL A ROBIOLIO MD

Internal Medicine (Cardiovascular Disease)

450 N NEW BALLAS RD, STE 270 W
SAINT LOUIS, MO 63195

St. Louis City (314) 991-6969

JACKIE L GROSKLOS MD

Internal Medicine (Cardiovascular Disease)

450 N NEW BALLAS RD, STE 270 W
SAINT LOUIS, MO 63195

St. Louis City (314) 991-6969

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 Clark Mckenzie's NPI number?

The NPI number for Clark Mckenzie is 1073506051. It was assigned to this individual provider in the NPPES registry on August 25, 2005.

Where is Clark Mckenzie located?

Clark Mckenzie practices at 450 N New Ballas Rd Ste 270 W, Saint Louis, MO 63195. The listed phone number is (314) 991-6969.

What is Clark Mckenzie's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Clark Mckenzie enrolled in Medicare?

Yes. Clark Mckenzie 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.

What insurance does Clark Mckenzie accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list Clark Mckenzie as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Clark Mckenzie affiliated with any hospitals?

According to CMS data, Clark Mckenzie is affiliated with Jersey Community Hospital, Sparta Community Hospital and St Lukes Hospital.

When was this NPI record last updated?

The NPPES record for Clark Mckenzie was last updated on January 19, 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.