Osler Jay Guzon, MD
NPI 1285683888 · Cardiovascular Disease Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Osler Jay Guzon, MD is a Cardiovascular Disease Physician provider in Saint Louis, MO (NPI 1285683888).
Provider details
- NPI number
- 1285683888
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2005013486 (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
1,562 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 357 | $80 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 313 | $98 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 104 | $133 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 99 | $21 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 98 | $14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 703 | 249 |
| Dapagliflozin Propanediolbrand: Farxiga | 583 | 159 |
| Apixabanbrand: Eliquis | 502 | 133 |
| Atorvastatin Calcium | 474 | 186 |
| Spironolactone | 423 | 155 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 325 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40,434 across 65 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
- 2006-05-09
- Last updated
- 2025-08-13
- Certified
- 2023-05-23
Frequently asked questions
- What is Osler Jay Guzon's NPI number?
- Osler Jay Guzon's National Provider Identifier (NPI) is 1285683888, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Osler Jay Guzon's specialty?
- Osler Jay Guzon is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Osler Jay Guzon located?
- Osler Jay Guzon's practice location on file with NPPES is 5201 Mid America Plz, Saint Louis, MO 63129-0002.
- What is Osler Jay Guzon's phone number?
- The practice phone number listed in the NPPES registry for Osler Jay Guzon is (314) 362-1291.
- Does Osler Jay Guzon accept Medicare?
- Osler Jay Guzon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Osler Jay Guzon's NPI active?
- Yes — Osler Jay Guzon's NPI (1285683888) is active in the NPPES registry as of the last update on 2025-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.