Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Robert Mariani, D.M.D.
Dentist in Phoenixville, PA · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770838484
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Registry record
Entity type Individual (Type 1)
Name Dr. Robert Mariani
Credential D.M.D.
Sex Male
Practice address 247 Schuylkill Rd, Phoenixville, PA, 19460
Phone (610) 933-8800
Fax (610) 933-8576
Enumeration date Jul 18, 2012
Last updated in NPPES Dec 19, 2012
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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.
Frequently asked questions
How do I verify Robert Mariani's NPI record?
Cross-check NPI 1770838484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1770838484 active?
Yes, as of the latest NPPES snapshot, NPI 1770838484 is active (record last updated 2012-12-19).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-19.