Alan Zajarias, MD
NPI 1679696579 · Interventional Cardiology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Interventional Cardiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alan Zajarias, MD is a Interventional Cardiology Physician provider in Saint Louis, MO (NPI 1679696579).
Provider details
- NPI number
- 1679696579
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2003015187 (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
19 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
898 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 | 201 | $123 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 120 | $14 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 84 | $75 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 75 | $12 |
| Replacement of Aortic Valve Through the Skin and Femoral Artery33361 | 50 | $715 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 305 | 82 |
| Atorvastatin Calcium | 214 | 61 |
| Apixabanbrand: Eliquis | 203 | 35 |
| Furosemide | 203 | 58 |
| Carvedilol | 192 | 49 |
| Amlodipine Besylate | 189 | 49 |
| Spironolactone | 187 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$21,913 across 47 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)
- 915 N Grand BlvdSaint Louis, MO 63106-1621Phone: (314) 652-4100
Registry dates
- Enumerated
- 2007-04-08
- Last updated
- 2025-09-15
- Certified
- 2025-09-15
Frequently asked questions
- What is Alan Zajarias's NPI number?
- Alan Zajarias's National Provider Identifier (NPI) is 1679696579, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Zajarias's specialty?
- Alan Zajarias is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Zajarias located?
- Alan Zajarias's practice location on file with NPPES is 4921 Parkview Pl, Saint Louis, MO 63110-1032.
- What is Alan Zajarias's phone number?
- The practice phone number listed in the NPPES registry for Alan Zajarias is (314) 362-1291.
- Does Alan Zajarias accept Medicare?
- Alan Zajarias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alan Zajarias's NPI active?
- Yes — Alan Zajarias's NPI (1679696579) is active in the NPPES registry as of the last update on 2025-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.