Steven Mackay, D.O.
NPI 1942254834 · Interventional Cardiology Physician · Columbia, MO
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Mackay, D.O. is a Interventional Cardiology Physician provider in Columbia, MO (NPI 1942254834).
Provider details
- NPI number
- 1942254834
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 2021034001 (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
3,186 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 638 | $13 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 387 | $117 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 288 | $10 |
| Evaluation of Single, Dual, Multiple Lead Or Leadless Pacemaker System Or Implantable Defibrillator System, Remote Up to 90 Days93296 | 226 | $18 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 200 | $63 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 351 | 105 |
| Atorvastatin Calcium | 343 | 99 |
| Metoprolol Tartrate | 307 | 79 |
| Losartan Potassium | 301 | 82 |
| Lisinopril | 271 | 72 |
| Metoprolol Succinate | 249 | 65 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$966 across 44 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
- 2006-05-22
- Last updated
- 2025-02-21
- Certified
- 2025-02-21
Frequently asked questions
- What is Steven Mackay's NPI number?
- Steven Mackay's National Provider Identifier (NPI) is 1942254834, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Mackay's specialty?
- Steven Mackay is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Mackay located?
- Steven Mackay's practice location on file with NPPES is 1605 E Broadway Ste 300, Columbia, MO 65201-8023.
- What is Steven Mackay's phone number?
- The practice phone number listed in the NPPES registry for Steven Mackay is (573) 256-7700.
- Does Steven Mackay accept Medicare?
- Steven Mackay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Mackay's NPI active?
- Yes — Steven Mackay's NPI (1942254834) is active in the NPPES registry as of the last update on 2025-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.