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James Maguire Tonascia, MD

Diagnostic Radiology Physician in Baltimore, MD · enumerated 2019.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1053874909

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Registry record

Entity type Individual (Type 1)
Name James Maguire Tonascia
Credential MD
Sex Male
Practice address 4940 Eastern Avenue, Baltimore, MD, 21264
Phone (410) 550-5568
Fax (410) 550-0470
Enumeration date Apr 8, 2019
Last updated in NPPES Jul 19, 2024

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License D0092317 (MD) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does James Tonascia practice?
The practice location on file with NPPES is in Baltimore, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for James Tonascia?
The National Provider Identifier (NPI) for James Tonascia is 1053874909, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-19.