Clark Mckenzie, MD
NPI 1073506051 · Interventional Cardiology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clark Mckenzie, MD is a Interventional Cardiology Physician provider in Saint Louis, MO (NPI 1073506051).
Provider details
- NPI number
- 1073506051
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R4P62 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
888 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 375 | $124 |
| Insertion of Tube in Left Lower Heart Chamber and Coronary Artery for Diagnosis With Review By Radiologist93458 | 122 | $253 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 103 | $14 |
| Insertion of Stents With Balloon Dilation of Coronary Artery Or Branch, Single Artery Or Branch92928 | 43 | $488 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 37 | $88 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 195 | 60 |
| Apixabanbrand: Eliquis | 145 | 28 |
| Losartan Potassium | 144 | 50 |
| Metoprolol Succinate | 142 | 40 |
| Amlodipine Besylate | 138 | 33 |
| Carvedilol | 131 | 36 |
| Clopidogrel Bisulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,867 across 88 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-25
- Last updated
- 2016-01-19
Frequently asked questions
- What is Clark Mckenzie's NPI number?
- Clark Mckenzie's National Provider Identifier (NPI) is 1073506051, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clark Mckenzie's specialty?
- Clark Mckenzie is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Clark Mckenzie located?
- Clark Mckenzie's practice location on file with NPPES is 450 N New Ballas Rd, Saint Louis, MO 63195-2632.
- What is Clark Mckenzie's phone number?
- The practice phone number listed in the NPPES registry for Clark Mckenzie is (314) 991-6969.
- Does Clark Mckenzie accept Medicare?
- Clark Mckenzie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clark Mckenzie's NPI active?
- Yes — Clark Mckenzie's NPI (1073506051) is active in the NPPES registry as of the last update on 2016-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.