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Robert E Mazzei, D.O.

Diagnostic Radiology Physician in Hagerstown, MD · enumerated 2006.

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

National Provider Identifier

1194823690

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Registry record

Entity type Individual (Type 1)
Name Robert E Mazzei
Credential D.O.
Sex Male
Practice address 10715 Downsville Pike Ste 103, Hagerstown, MD, 21740
Phone (301) 739-6144
Fax (301) 739-6163
Enumeration date Sep 20, 2006
Last updated in NPPES Mar 20, 2025

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License H51801 (MD) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
265300100 Medicaid MD -

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

What is the NPI number for Robert Mazzei?
The National Provider Identifier (NPI) for Robert Mazzei is 1194823690, a Type 1 (individual) record in the CMS NPPES registry.
Where does Robert Mazzei practice?
The practice location on file with NPPES is in Hagerstown, MD. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-20.