Mark Gdowski, MD
NPI 1831453505 · Interventional Cardiology Physician · Chesterfield, MO
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Gdowski, MD is a Interventional Cardiology Physician provider in Chesterfield, MO (NPI 1831453505).
Provider details
- NPI number
- 1831453505
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2014024076 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,268 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 | 733 | $123 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 341 | $75 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 216 | $12 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 165 | $14 |
| Insertion of Tube in Left Lower Heart Chamber and Coronary Artery for Diagnosis With Review By Radiologist93458 | 157 | $249 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 52 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 523 | 148 |
| Apixabanbrand: Eliquis | 438 | 103 |
| Atorvastatin Calcium | 374 | 110 |
| Rosuvastatin Calcium | 369 | 119 |
| Amlodipine Besylate | 341 | 109 |
| Metoprolol Tartrate | 310 | 89 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,500 across 126 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
Additional practice locations (1)
- 450 N New Ballas Rd Ste 270Saint Louis, MO 63141-6859Phone: (314) 991-6969Fax: (314) 997-6969
Registry dates
- Enumerated
- 2012-06-27
- Last updated
- 2021-11-11
- Certified
- 2021-11-11
Frequently asked questions
- What is Mark Gdowski's NPI number?
- Mark Gdowski's National Provider Identifier (NPI) is 1831453505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Gdowski's specialty?
- Mark Gdowski is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Gdowski located?
- Mark Gdowski's practice location on file with NPPES is 121 Saint Lukes Center Dr Ste 303, Chesterfield, MO 63017-3519.
- What is Mark Gdowski's phone number?
- The practice phone number listed in the NPPES registry for Mark Gdowski is (314) 434-3278.
- Does Mark Gdowski accept Medicare?
- Mark Gdowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Gdowski's NPI active?
- Yes — Mark Gdowski's NPI (1831453505) is active in the NPPES registry as of the last update on 2021-11-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.