James Maguire Tonascia, MD
Diagnostic Radiology Physician · Baltimore, MD
James Maguire Tonascia, MD is a diagnostic radiology physician with a practice address in Baltimore, Maryland, and NPI 1053874909, issued on Apr 8, 2019. Check the license (Maryland D0092317, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- James Maguire Tonascia
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- D0092317 MD
Self-reported in NPPES; status is on the state search - Practice location
- 4940 Eastern Avenue, Baltimore, MD 21264
- Phone
- (410) 550-5568
- Enumerated
- Apr 8, 2019
- Record last updated
- Jul 19, 2024
- Fax
- (410) 550-0470
- Medicare enrollment
- Enrolled (PECOS I20241111003736); may accept Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 877 in Maryland → Look up another NPI →
Also registered at 4940 Eastern Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Maguire Tonascia in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0092317Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 4 group practices
- Johns Hopkins UniversityColumbia, MD
- University Imaging Center, LLCBaltimore, MD
- University OF Maryland Diagnostic Imaging Specialists P ABaltimore, MD
- University OF Maryland Diagnostic Radiology, LLCLa Plata, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Maguire Tonascia among 877 diagnostic radiology physician records in Maryland
James Maguire Tonascia, MD is one of 877 diagnostic radiology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 91% of them.
- NPI issued2019 · 91% of these records are older, 5% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2019 · median 2003 among the 604 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
493 diagnostic radiology physician records list a practice address in Baltimore
They are 493 of the 35,183 NPPES records with a practice address in Baltimore, and 877 diagnostic radiology physician records in Maryland.
All 877 in Maryland → Every provider in Baltimore → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Agnieszka Boron, MDBaltimore, MD 212641477015956
- Jazmyne HefflefingerBaltimore, MD 212641851852115
- Andrew Kilgore, MDBaltimore, MD 212641417517608
- Jahinover Mazo, MDBaltimore, MD 212641427554872
- Timothy McMahonBaltimore, MD 212641467913442
- Anna Nidecker, M.D.Baltimore, MD 212641033388491
- Antoni Parellada, M.D.Baltimore, MD 212641730159898
- Marc Paul, MDBaltimore, MD 212641750375390
Common questions
What is James Maguire Tonascia, MD's NPI number?
James Maguire Tonascia, MD's National Provider Identifier (NPI) is 1053874909, issued on Apr 8, 2019. An NPI identifies a provider in billing; it is not a license.
Where is James Maguire Tonascia, MD located?
The NPPES record lists a practice address at 4940 Eastern Avenue, Baltimore, MD, 21264. Phone: (410) 550-5568. Providers update this record themselves, so call before visiting.
How can I verify James Maguire Tonascia, MD's license?
NPPES lists Maryland license number D0092317, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.