Carl Mazzola, MD
NPI 1801967138 · Diagnostic Radiology Physician · St Charles, MO
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carl Mazzola, MD is a Diagnostic Radiology Physician provider in St Charles, MO (NPI 1801967138).
Provider details
- NPI number
- 1801967138
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2004001466 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,755 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Screening 3d Breast Mammography77063 | 418 | $27 |
| Screening Mammography77067 | 418 | $34 |
| X-Ray of Chest, 1 View71045 | 394 | $8 |
| Screening Mammography77067 | 249 | $34 |
| Screening 3d Breast Mammography77063 | 248 | $27 |
| X-Ray of Chest, 2 Views71046 | 204 | $10 |
| Ct Scan Head Or Brain Without Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-10
- Last updated
- 2024-03-18
Frequently asked questions
- What is Carl Mazzola's NPI number?
- Carl Mazzola's National Provider Identifier (NPI) is 1801967138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carl Mazzola's specialty?
- Carl Mazzola is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Carl Mazzola located?
- Carl Mazzola's practice location on file with NPPES is 300 First Capitol Drive, St Charles, MO 63301.
- What is Carl Mazzola's phone number?
- The practice phone number listed in the NPPES registry for Carl Mazzola is (636) 947-5444.
- Does Carl Mazzola accept Medicare?
- Carl Mazzola is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carl Mazzola's NPI active?
- Yes — Carl Mazzola's NPI (1801967138) is active in the NPPES registry as of the last update on 2024-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.