John Petronis, M.D.
NPI 1255371548 · Diagnostic Radiology Physician · Baltimore, MD
John Petronis, M.D. is a Diagnostic Radiology Physician provider in Baltimore, MD (NPI 1255371548).
Provider details
- NPI number
- 1255371548
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D29944 (MD)
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 tenure38% of score
20 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
- 2006-06-07
- Last updated
- 2013-02-14
Frequently asked questions
- What is John Petronis's NPI number?
- John Petronis's National Provider Identifier (NPI) is 1255371548, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Petronis's specialty?
- John Petronis is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Petronis located?
- John Petronis's practice location on file with NPPES is 4940 Eastern Ave, Baltimore, MD 21224-2735.
- What is John Petronis's phone number?
- The practice phone number listed in the NPPES registry for John Petronis is (410) 550-2948.
- Is John Petronis's NPI active?
- Yes — John Petronis's NPI (1255371548) is active in the NPPES registry as of the last update on 2013-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.