John Mazuski, MD
NPI 1992723472 · Surgery Physician · Saint Louis, MO
John Mazuski, MD is a Surgery Physician provider in Saint Louis, MO (NPI 1992723472).
Provider details
- NPI number
- 1992723472
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R6P11 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2021-11-15
Frequently asked questions
- What is John Mazuski's NPI number?
- John Mazuski's National Provider Identifier (NPI) is 1992723472, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mazuski's specialty?
- John Mazuski is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is John Mazuski located?
- John Mazuski's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is John Mazuski's phone number?
- The practice phone number listed in the NPPES registry for John Mazuski is (314) 362-5298.
- Is John Mazuski's NPI active?
- Yes — John Mazuski's NPI (1992723472) is active in the NPPES registry as of the last update on 2021-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.